Transcript
THE HAMMOND LANE METAL CO. LTD. PROPOSED
FRAGME~TTATION
PLANT
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PIGEON HOUSE ROAD, DUBLIN
IMPACT
July, 1995
STATEMENT
Study by: Barry Kelleher, Consulting Engineer 23, Sheraton Court, Glasheen Road, Cork. and Eanna O'Kelly, Quaestor Analytic Ltd., Portside Business Centre, East Wall Road, Dublin 3.
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se . ru he ot f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny nt o se Co n
RECYCLING PROTECTS THE ENVIRONMENT
0 BUREAU
INTERNATIONAL
DE
LA
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CONTENTS 1. Introduction. 2. Non - Technical Summary. 3. Worldwide List of Shredders and list of Lindemann Shredder Plants. ~
PROJECT DESCRIPTION History of Company. Description of Project. Site Selection. Site Layout. 4.5 Description of Working Method of Main Plant. 4.6 Materials Handling and Transport. ru
EMISSIONS ARISING FROM PROCESS ot
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4.1 4.2 4.3 4.4
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5.1 Noise
5.2 Surface Water 5.3 Foul Drainage 5.4 Waste ~
THE EXISTING ENVIRONMENT
6.1 Site Description and Present Use. Co n
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6.2 Roads and Traffic. 6.3 Noise Baseline. 6.4 Surface Water.
IMPACT 7.1 7.2 7.3 7.4 7.5 7.6 lL.._
Disposal of unwanted scrap vehicles. Employment Noise Roads & Traffic Surface Water Waste Disposal
APPENDIX 8.1 8.2 8.3 8.4
Measurement of existing noise levels Location Plan Site Layout Plan Lindemann - Zerdirator Shredder
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INTRODUCTION
The Hammond Lane Metal eo. Ltd. propose to relocate their Dublin Fragmentation Plant and Scrap Depot from Sir John Rogersons Quay to Pigeon House Road. The Hammond Lane Metal Co. Ltd. has a Fragmentation Plant in Cork as well as other Depots for collection of scrap in Cork, Limerick, Athlone and Galway. Preliminary discussions on this project with the Dublin Port and Docks Board, Dublin Corporation and the Eastern Health Board (Environmental Section) resulted in a request that an Environmental Impact Statement (E.I.S.) be submitted.
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The Hammond Lane Metal eo. Ltd. requested that Mr. Barry Kelleher and Mr. Eanna O'Kelly, Consulting Engineers prepare and submit the E.I.S. for them. Mr. B. Kelleher is the Consulting Engineer appointed by The Hammond Lane Metal Co. Ltd. for this project and they have also retained the services of Mr. O'Kelly of Quaestor Analytic Ltd. to advise on a particular aspect namely Noise Emissions. It should be noted that both of these Consultants were involved in the recently built ( 1991) Cork Fragmentation Plant. Other information on this study has been obtained from The Hammond Lane Metal Co. Ltd. and M/S. Lindemann (the proposed shredder plant suppliers) and The Hammond Lane Metal eo. Ltd.'s associate Company in the U.K. M/S. Mayer Parry Recycling.
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A visit was made to see a new Lindemann Fragmentation Plant operating in Glasgow, Scotland earlier this year. The Lindemann equipment is manufactured to the latest EC Specifications and meets all current safety standards. Information on existing services roads etc. has been obtained from the Dublin Port and Docks Board, and the Consulting Engineer for the previous occupiers of the site.
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NON TECHNICAL SUMMARY
The Hammond Lane Metal eo. Ltd. proposal is to relocate the Dublin Fragmentation Plant and Scrap Depot in Pigeon House Road. This Plant is in addition to a similar one in Cork as well as existing Depots for collection of scrap metal in Cork, Limerick, Athlone and Galway. The new Plant will product 50000 tonnes of high grade fragmented scrap per year. It can deal with truck loads of car bodies, domestic applicances, farm machinery etc.
scrap is exported for use in a steel mill as a raw non ferrous metals are collected, packed on site onward for further processing and the 'i1vaste taken off site to an approved Local Authority to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny
The fragmented material, the and exported materials are landfill site.
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The scrap is fed into the shredder where it is reduced in size. The changed scrap is reduced to small pieces by a rotor. It is then conveyed via a draw off vibrating conveyor and a following belt conveyor to the separating drum and a magnetic drum where the high guali ty fragmented scrap is separated from the nonferrous metals and waste materials. These 3 11 streams" are deposited in different compartments.
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Some steel scrap sections are too large to be processed in the Shredder. These are therefore reduced in size by the Shears. The existing BOO tonne Lindemann Shears will be moved from Sir John Rogersons Quay to the new site. This is a type of guillotine shears which works on the heavier steel sections not able to be processed in the Fragmentation Plant. The resultant steel scrap like the fragmented scrap is sent to a steel mill as a raw material. As well as Scrap being produced by the Fragmentation Plant Shears there will also be an area where oversized scrap will cut to size using Oxygen and Propane cutting equipment. M.C. (Multi Cylinder Pack) of Oxygen and Propane will be used and equipment will be the most modern available.
and be P. all
Space is therefore needed on site for raw material storage, the Plant itself, finished fragmented scrap storage, scrap from the shears, a non ferrous metals building, weighbridges, offices, workshop, ESB building, Car Parking and room for traffic circulation. Some of these facilities i.e. Offices, Weighbridges, a building suitable for Non Ferrous Metals (existing garage) are already on site together with some services from the previous site user Coal Distributors Ltd.
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WORLDWIDE LIST OF SHREDDERS
There are Shredders in all 5 Continents and herewith is the latest WorldvJide List and also the latest Lindemann List. The Hammond Lane Metal Co. Ltd. has been using Shredder equipment since 1978 and Shears equipment since 1963. The following is the Worldwide list of Shredders, status August, 1989, according to the Bureau International De La Recuperation in Brussels:Total Shredders including Mills
Total Annual output (1000 t)
Total Power in HP
Number of New Plants currently under Construction
188 ~
15,700 6,400 45,790 54,184 1,250 20,000 12,500
324 100 933 1,500 40 700 450
1
14,500 91,000
1,700
3
2
EulROPE
AUSTRIA FINLAND NORWAY SWEDEN SWITZERLAND TURKEY TOTAL !h._
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TOTAL FURTHER
9 5 34 42 1 14 12 2 12 57
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BELGIUM/LUX DENMARK FRANCE GERMANY FR IRELAND ITALY NETHERLANDS PORTUGAL SPAIN UK
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Country
6 2 3 3 4 1
120 35
19
EUROPE
CHECHOSLOVAKIA E. GERMANY (GDR) RUSSIA (USSR) YUGOSLAVIA TOTAL
2 2 6 1 11
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Country
Total Shredders including Mills
Total Power in HP
Total Annual output (1000 t)
Number of New Plants currently under Construction
MIDDLE EAST 1 1 1 1 1 1
TOTAL
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ABU DHABI KUWAIT LYBIA IRAQ QUATAR SAUDIA ARABIA
180
TOTAL
202
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ARGENTINA BRAZIL COLOMBIA MEXICO VENEZUELA
1,500
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N & .S. AMERICA
60,000
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CANADA USA
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AMERICA
4
1
TOTAL
12
JAPAN
140
AUSTRALIA
9
NEW ZEALAND
1
TOTAL
114,900
3,446
10
AFRICA SOUTH AFRICA TOTAL WORLD SHREDDERS
2 591
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LIST OF LINDEMANN
SHREDDER PLANTS
T. Smith & Co. Hartlepool
1000
D.
Deumu, Recklinghausen
2000
J
Ariake Kogyo Kogyo K.K., Tokyo
2000
CH
Thommen & Co. Kaiseraugst
2000
D
Klockner Rohstoffhandel, Osnabruch
2000
D
Deumu, Nurnberg
2000
I
Feralpi, Lonato
CH
Thevenaz-Leduc S.A. Ecublens
2000
E
Fragmentadora S.A. Barcelona
2000
I
Centra Rottami, Cisterna die Latina
2000
J
Kyushu Metal Scrap K.K. Kyushu
2000
GB
Jones & Co. Ltd., Waltham Cross
2000
D
Eckhardt & Co. Hamburg
2000
su
Metallurgimport, Moskau
2000
B
Retra, Gent
2000
A
V.A.R., Wien
2000
J
Yamanaka K.K., Kawasaki
2000
J
Toyoda Metal Scrap, Nagoya
2000
B
Paridans, Aubange
2000
D
Deumu, Slazgitter
2500
D
Thyssen Sonnenberg, Mannheim
2000
F
GIR, La Talaudiere (St. Etienne)
2000
GB
S. Norton, Manchester
2000
ROK
Inchon Iron & Steet Co., Inchon
2000
2000
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GB
Co
Type ZS 210 X 260
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Cia. Valenciana Fragmentadora, Valencia
2000'
E
Lajo Plaza, Madrid
2000
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Dortmunder Shredder GmbH, Dortmund
2000
B
A. Stevens, Genk
2000
B
Galloo Metal, Meenen
2000
NL
Pametex, Den Haag
2500
GB
Robinson & Hannon, Blaydon
3000
NL
Hollandia Autowrakken, Amsterdam
2500
GB
R.M. Supplies, Inverkeithing
F
PURMET, St. Pierre de Chandieu (Lyon)
3000
DK
Hansen, Odense
3000
DK
Roskilde Jernvaerk, Roskilde
3000
D
Metallrohstoffe Thuringen, Wohlsdorf
2400
X
260
3000
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PROJECT DESCRIPTION
THE PROJECT 4.1 HISTORY OF THE COMPA_WY The Company was founded under the banner of The Hammond Lane Foundary eo. Ltd. in 1898. This means that The Hammond Lane Metal eo. Ltd. will be celebrating 100 years in business in 3 years time. The present Company, The Hammond Lane Metal Co. Ltd. was incorporated in 1936 operating in the Dublin area. Branches were established in Cork in 1954, Athlone in 1966, Limerick in 1975 and a further branch in Sir John Rogersons Quay in Dublin in 1977.
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The Company presently have a Fragmentation Plant in Sir John Rogersons Quay, Dublin and Ringaskiddy, Cork. A total of approx. 100000 tonnes representing about 90% of the total scrap arising in the Country is processed annually by The Hammond Lane Metal eo. Ltd. The Companys present Directors are Mr. D. H. Frame (Managing Director), F.P. Donnelly, J.A. Roberts, P. Keogh and M.W. Taylor. The Company is engaged in the processing of Ferrous and Non Ferrous Metals for supplying to steel mills, foundries and smelters both here in Ireland and abroad.
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The main product of the Company is steel scrap for steel mills. The scrap is collected or delivered, sorted, sheared and/or fragmented to strict specifications for the mills. The finished highgrade scrap is either exported or sold to Irish Steel Ltd. The Hammond Lane Metal moving. These are:-
Company
Ltd.
have
2 main
reasons
for
1. The proposed relocation of the Dublin Fragmentation Plant from Sir John Rogersons Quay is in accordance with Dublin Corporation's objectives to rejuvenate Sir John Rogersons Quay for residental purposes. 2. Because of the necessity to upgrade Plant.
the present Processing
In relocating the Plant to the Pigeon House Road site it is proposed to purchase a new Fragmentation Plant. The Pigeon House Road site was previously used by Coal Distributors for a massive coal handling, bagging, distribution operation and is the site zoned for General Industrial use. The existence of country ensures countryside. It facility to have
The Hammond Lane Metal eo. Depots throughout the that scrap cars etc. are collected from the is therefore, environmentally a very desirable available in this Country.
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4o2 DESCRIPTION OF PROJECT The Hammond Lane Metal eo. Ltd. intend to purchase a new shredder for the Pigeon House Road Sl~e. It is likely that is will be a Lindemann - Zerdirator (a particular type of Shredder) . This would be an upgrade on the present Shredder, also a Lindemann one, on the Sir John Rogersons Quay site. The new Plant will produce 50000 tonnes of high grade finished scrap per year. The main source of supply will be:1. Car bodies from Dismantlers, Breakers etc. 2. The Hammond Lane Metal Co. Ltd.'s Athlone Depot.
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3. Approx. 30% of the feedstock would be light iron suitable for the Shredder would come from Commercial and Domestic Suppliers. to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny
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The new Plant can deal with lorry loads of car bodies, domestic applicances 1 farm machinery etc. It should be noted that domestic fridges delivered to the site will have had the C.F.C.'s removed prior to delivery. Car wiring is processed and separated out in the shredding operation.
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The plant can process raw materials up to 6mm thick. The shredding machine will be powered by a 2000 HP motor and can process approx. 65000 tonnes per - of scrap material. It is proposed to have an electric tor on the new site whereas there is a diesel one on the Sir John Rogersons Quay site. It should be noted that the electric motor is much more desirable environmentally both from the point of view of noise and emissions. The
proposed
new
Plant
is shown on
Diagrams in Appendix.
The raw material is fed into the shredding mill where the motor reduces the metals in size. The separating drum and the magnetic drum separates the high quality fragmented scrap from the nonferrous metals and from the dirt, dust and light fractions. The latter portion is removed off site daily to an approved Local Authority landfill site. The Hammond Lane Metal eo. Ltd. presently supply Irish Steel Ltd. with high quality fragmented scrap from their Ringaskiddy, Cork facility and it is expected that all of high quality scrap from the Pigeon House Road site be exported to the U.K. and the Continent of Europe.
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4.3 SITE SELECTION The Hammond Lane Metal eo. Ltd. required a site of approx. 4.3 acres in area for this project. It is desirable that the site selected be zoned for General Industry, with good access, water availability and other services on site. It was also desirable though not essential that the site would be near the present one as the present head orr 1ce on Sir John Rogersons Quay would be used in the short term until the nev-1 Plant is up and running. The Hammond Lane Metal Co. Ltd. had indicated to the Dublin Port and Docks Board that they would be interested in relocating if a sui table site was available and so this eventuated when Coal Distributors Ltd. vacated the Pigeon House Road site.
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The site is in an area where the Dublin Port and Docks Board intend to develop their container operation, is bounded on the west by Industrial sites and the old ESB generating station, on the south by more Industrial Sites and on the east by the Dublin Corporation Sewage Treatment Works. If The Hammond Lane Metal Co. Ltd. are not able to sell the Scrap to Irish Steel Ltd. for any reason it can be exported to other Steel Mills in the E.C. and with this site there is a first class loading facility available.
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The nearest houses are approx. 800 metres away on the southern link road and opposite Irish Glass Bottle Ltd. The site has a quay on the north 30000 tonnes capacity can berth.
side
where
boats
of
up
to
The site is owned and controlled by Dublin Port and Docks Board. We have had a meeting with them outlining the proposal for this project and they are satisfied with same. All they have asked is to be kept informed as the project progresses. The site is therefore ideal for the proposed use.
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4o4 SITE LAYOUT
Entrance to this site is off a side road from the Pigeon House Road - see drawings in Appendix. The entrance will be shared with Irish Cement Ltd. Inside the entrance will be - on the north east corner - an ESB 38 KV Station with car parking adjacent. The truck traffic entering comes into a 18m - 60 tonne capacity weighbridge. The traffic circulates in an clockwise direction and exits over another 18m - 60 tonne weighbridge.
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The offices and also the weighbridge and weighbridges themselves are already there. However owing to the reduction in scale of operations on site from both the traffic and personnel employed point of view approx. 50% of the present office space only is necessary.
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A substantial portion of the site is required to give a satisfactory circulation/turning area for delivery of raw materials. These will be deposited onto a raw scrap stockpile and a crane of approx. 20 tonnes capacity will load the scrap onto the conveyor to the shredder (The fragmentation process is described in 4.6 Processing Technology).
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The shredder itself, 2000 HP electric motor, major plant support loads, shears etc. will all be supported on piles and as the site was originally filled behind the quay wall. The Shredder Plant for associated end products will be located on the North-Eastern corner of the site. It will have an adjoining building with transformers, switchgear and hydraulic power pack. Anit-vibration springs and a damper system will be incorporated under the Shredder to isolate the foundations, from most of the vibrations produced at the shredder due to the shredding process. This will minimise any vibrations that could be transferred to surrounding areas. Noise reduction/sound absorbing wall panels will be located as near as possible to the main noise source, the Shredder itself. The foundation for these wall panels will be isolated from the Shredder foundations. All structural steelwork supporting the Plant will be painted in a goosening grey colour to the satisfaction of the Planning Authority, Dublin Corporation. The eastern end of the site is where the high quality fragmented scrap is stored and removed off site. The non-ferrous metals building is presently a garage and will be refurbished as necessary. Adjoining diesel storage and pumps will be used for truck refilling as necessary.
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There will be a workshop approx. 20 metres X 10 metres X 5 metres to the eaves. The Shears, with adjoining transformer and switchgear, located on the southern side of the site.
will be
There will be a screen wall constructed of 215mm concrete block with piers and capped on the southern boundary of the site between the non ferrous metals building and the workshop and also on the south side of the shears. Use will be made as far as possible of the existing surface water drains, foul sewage direct to piping pumping, water supply piping, electricity and phone lines.
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The site surfacing will be a mixture of the present macadam surfacing together with reinforced concrete slabs for very heavily loadedjtrafficed areas.
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4.5 DESCRIPTION AND WORKING METHOD OF MAIN PLANT
A new shredder - probably a Lindemann Zerdirator - Plant will be purchased. The follovling is a description and working method of such a Plant. (Please note that this description was supplied by M/S. Lindemann) . Feeding Car bodies or other mixed scrap are charged onto the inclined feeding chute of the Zerdirator by means of a crane or a hydraulic grab. By its own weight, the material glides on to a pair of feed rollers arranged at the lower end of the chute right in front of the Zerdirator opening.
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The rollers seize the scrap or the car bodies, squeezing them flat and pushing them onto the Zerdirator at a controlled feeding rate. Feed roller motions are automatically switched on and off by electrical instruments in order to maintain a constant load on the main motor, thus also avoiding overcharging of the Zerdirator. Provisions have been made for manual operation and reverse movement of the rollers when intricate scrap pieces are to be handled.
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The upper feed roller is mounted in a frame in such a way that it is allo'i'Jed to swing up and down so that i t is capable of adjusting itself to the various sizes of scrap pieces. Normally, the weight of the roller itself is sufficient for the squeezing process; if not, the machine opera tor can switch on two hydraulic cylinders by actuating a control lever. The upper roller may also be lifted by these cylinders in order to permit high vehicles to be brought between the rollers. Framnentizinq The rotor's sense of direction corresponds to the material feeding direction. The charged scrap is torn off at the anvil edge. Those scrap pieces which are small enough leave the Zerdirator through the grid openings of either bottom grid basket or top grid plate. At a second anvil bar underneath the baffle plate such scrap pieces, which are too big to pass through the grid, 'are further reduced in size. By going through this tearing and bouncing process, the scrap pieces are reduced in size and compressed until they can pass through the grid openings. Coarse pieces which cannot be shredded,· are eiected through a hydraulically operated ejection flap, by-passing the grids, without interrupting the production process.
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After having passed the grid openings, the shredded scrap pieces are thrown back at the walls of a pivot hood and are carried to the exit opening through a collecting funnel. Simultaneously, any flying, non-metallic dust is carried off by the strong air stream of the connected dedusting equipment. Separating After leaving the Zerdirator, the material is conveyed via a draw-off vibrating conveyor and a following belt conveyor to the separating drum. In the separating drum the shredded non-ferrous metals and the steel scrap are separated from adhering unholstery fluffs and other flying non-metallic material.
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The material separated by mechanical action is sucked off by the attached dust extractor in opposite direction to the scrap flow. to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny
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The cleaned non-ferrous metal and steel scrap is then steadily fed into the magnetic drum via a vibrating conveyor. The magnetizable steel scrap is picked-up from the material stream, thus non-magnetic metal or waste particles which might have been withdrawn can fall back onto the vibrating conveyor.
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During transportation on the drum surface in the magnetic area, the attracted steel parts move due to the changing polarity of the magnetic field on the drum shell. By this "shaking effect", jammed non-magnetic pieces can be separated. The extracted steel scrap will subsequently, in the area of the opposite, nonmagnetic drum-half, be thrown-off onto the steel sorting belt. At the steel sorting belt parts with ferrous adherences, e.g. copper coils with ferrous core or rubber parts with ferrous enclosures (parts of tyres with steel inserts) are manually picked out. From the steel sorting belt the clean ferrous scrap is loaded direct onto the stockpile via the following slewable steel discharge belt. The non-magnetic materials drop onto the non-ferrous metal sorting belt underneath the magnetic drum where the sizeable nonferrous metal parts are manually picked out. The remaining material stream is conveyed into the storage bins. Zerdirator Dust Extraction The dust extracting equipment operates on a two-stage separation system. In the first stage, dust-laden air is sucked off and cleaned from coarse dust by centrifugal separation. The dry, separated material is continuously evacuated by a rotary air lock on to a belt conveyor, and led into a storage bin. In
the
second
stage,
the
cleaned
air
enters
the
VENTURI-wet
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Separating Drum Dust Extraction
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The VENTURI equipment consists of four sections: Venturi head, Venturi neck, diffuser and separator. In the convergent part of the Venturi head the cleaned air stream is accelerated and reaches its maximum speed in the Venturi neck. Water is fed in and is atomized into smallest droplets due to the incoming air stream, thus offering a large deposition area for finest dust particles. In the diffuser, speed energy is partly transformed into pressure energy, and the small droplets are condensed into bigger ones. In the adjacent separator, the water containing fine dust particles is separated by mass moment of inertia and centrifugal forces. The clean air is discharged by the fan through a connection piping. Through the conical water collector, the water is fed into the water preparation plant for purification. While the purified water is fed back into the Venturi through pumps, solid materials are removed by means of a scraper conveyor onto the mud conveyor and then to a storage bin.
The dust extraction operates with circulating air. The dustladen crude gas sucked off at the separating drum is pre-cleaned from coarse dust and waste by centrifugal force separation in a cyclone.
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The separated dry material is continuously evacuated by a rotary air lock onto a belt conveyor. A partial stream of the precleaned air is led to the Venturi-scrubber of the Zerdirator dust extraction via a connected air pipeline for further cleaning. The main volume of the precleaned air is separating drum via a circulation air fan.
led
back
into
the
The waste material from both Zerdirator dust extraction and separating drum dust extraction is conveyed into containers via several belt conveyors. Painting In general, the painting of Lindemann machines/plants consists of one prime coat and one top coat. Thickness: Colour shade of top coat: Switch cabinet: (The colour may qoosening grey) .
be
varied
40 microns each RAL 5015 (sky blue) RAL 7032 (pebble grey) if
Dublin
Corporation
so
wish
to
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4o6 MATERIALS HANDLING AND TRANSPORT
This Plant can process approx. 100000 tonnes of Raw Material Scrap obtained from the sources mentioned in Section 4.2. The Lindemann shredder scrap material.
can process
tonnes
65000
per
The scrap will be delivered in truck loads of car bodies A stockpile
of
raw material
scrap would be
retained on
site.
Scrap would be continuously fed 1 using a 25 tonne capacity crane to the feed conveyor and there onto the shredder as previously described.
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The finished frag. scrap would be stored on site and then loaded on to a boat at the quayside. to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny
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The dirt would be removed off site on approved Local Authority landfill site.
a
daily
basis
to
an
The non ferrous metals would be taken to the non ferrous metals building and packed and exportedo The overall extra traffic generated by 150/200 trucks movements per week.
this
project would be
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Additiional regular traffic to the Plant would be for suppliers with maintenancejreplacement equipment and employee travel. The Plant will be run on a single shift operation Monday to Friday 7.a.m. to 7.p.m. and Saturday 7.a.m. to l.p.m. The Hammond Lane Metal eo. Ltd. will avail of the maximum demand tariff on this Plants power supply as offered by the ESB during the months of November, December, January and February. This means that the Plant will cease production during these 4 months at 4.45 p.m. each day.
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ENVIRONMENTAL EMISSIONS ARISING FROM PROCESS
5.1 NOISE
The process of metal fragmentation is inherently noisy. It lS not practical to reduce the noise emission from the plant by totally enclosing the plant in a building. The plant layout as proposed has been advised by the plant manufacturers as being the optimum for this particular site. Some noise reduction can be achieved by acoustically screening the Shredder Mill on the southern side.
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Noise measurements and analysis were carried out by Quaestor at the existing fragmentation plant operated by Hammond Lane Metal Company at Ringaskiddy. This plant, rather than the one at Pigeon House Road, is very similar to the proposed plant, with the exception that the separator at the proposed plant will be a drum type. This will be acoustically damped and screened. A vibratory type separator is used at Ringaskiddy. This is a noisier type of unit. The results of the survey at Ringaskiddy show that the expected noise level at 135 metres distance in line of sight from the sh:edder would be. an LAeg 1 h~ur level of 69dBA. Extrapolating thls data would glve the ~~ollowlng levels.
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(a) Entrance to site (b) Southern Boundary of site (c) Coastguard Cottages
LAeg 1 hour 65 ' 70
50
This assumes acoustic screening to the south of the Shredder Mill and acoustic treatment of the drum separator. It takes account of sound attenuation due to distance only, and in the case of the Coastguard Cottages, additional screening by intervening buildings and storage containers of about 4 to 5 dBA. The location of the acoustic screening is shown on site layout drawing. The screening should consist of impervious sheeting of surface density not less than 20kgjcubic metre. The mineral wool should be physically protected by perforate metal sheeting with at least 25% open area. The impervious metal sheeting for screening can typically be preformed plastic coated metal cladding of thickness 0. 8mm. The bottom 3 metres of the screening will be 200mm precast or reinforced concrete. The acoustic screening will be 10 metres high (above ground).
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5~2
SURFACE WATER
The. site itself will retain the existing surfacing over most of the area together with a reinforced concrete surface for the most heavily loaded/trafficked areas. The surface water drainage on site will be as existing andjor connected to the existing. The discharge points to the river will remain as before.
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The road gulleys on the site have sumps incorporated and there will also be 2 no. sedmentation chambers on the outlet lines of the surface water drains. These will ensure that no extraneous metals from The Hammond Lane Metal Co. Ltd. site will transfer to the outfall from sections of the surface water drains.
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5. 3 FOUL DRAINAGE
The only foul drainage from the site will be from the office building. The total no. of people using the offices will be 25.
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The drainage is existing, as is the office, and it goes to a pre treatment/ pumping station that exists on the southern boundary of the s11:e from where it is pumped to the nearby Dublin Corporation Sewage Treatment works on the eastern side of the site.
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5.4 WASTE The waste arising from this project is the dust and dirt arising from the process. This has been referred to earlier - see 4.5 etc. On a yearly throughput of 65000 tonnes of raw material scrap the quantity of such waste will be approx. 10000 tonnes per annum. This is stored temporarily on site in a 3 sided open concrete bin and is removed from site on a daily basis to an approved Local Authority landfill site.
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The waste produced is non-toxic.
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6.THE EXISTING ENviRONMENT 6.1 SITE DESCRIPTION AND PRESENT USE The proposed site is part of land owned by the Dublin Port and Docks Board and is leased from the new lessees of the whole, larger, site who are Irish Cement Ltd. The previous occupier of the vlhole site were Coal Distributers Ltd. who vacated the site probably following a downturn in bituminous coal imports. As far as I am aware they occupied the site for approx. 20 years and carried on a very large coal handling, bagging operation with a large number of people employed.
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The existing site therefore contains, at present, a number of buildings i.e. Offices, ESB Rooms, Garage, Weighbridges and Services i.e. Foul Drainage, Surface Water Drainage, Electrical Cables, Water Pumping, Telephone Cables.
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The site has recently General Industrial use.
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The site was originally reclaimed and filled therefore be necessary to have piled foundations heavy loads.
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6o2 ROADS AND TRAFFIC Access to the site is Pigeon House Road and Road to Whitebank Road a short distance - see
via the roundabout at the junction of the Sean Moore Road then along the South Bank and along the Pigeon House Road again for Site Location Plan in Appendix.
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The Dublin Port and Docks Board is actively pursuing provision of improved road access to the Port and requires an effective local road system linked to the National Arterial Road Network.
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6.3 NOISE BASELINE The existing ambient noise ~PJas measured at the site and at the nearest houses, which are the Coastguard Cottages located approximately 800 metres from the Shredder Mill. Measurements were made of the following hourly parameters. LAeq - the equivalent continuous noise level in dBA LA 10 ,LAgo - the noise level equalled or exceeded for 10% and 90% respectively of the sample period. The mean and standard deviation of these parameters was determined for daytime, 0 7 . 0 0 to 2 2 . 0 0 hr. and for nighttime 22.00 to 07.00 hr.
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The details and results of these measurements are shown in tabular and graphical form in Appendix. to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny
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The mean daytime values at the measuring locations were as follows:LAeq, 1 hour
Coastguard Cottages On site
LA90, 1 hour
64
50
56
50
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Additional short term measurements, over 20 minute intervals, were also carried out at houses along Pigeon House Road and at Lucas Road and Clare Kyle Road. These results are also shown in Appendix.
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6o4 SURFACE WATER
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There is an existing surface water drainage system on site discharging to the River.
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IMPACT OF THIS EMPLOYMENT
7.1 DISPOSAL OF UNWANTED SCRAP VEHICLES The Hammond Lane Metal eo. Ltd. accepts all unwanted scrap vehicles at its Depots throughout the country. Presently approx. 83000 cars per annum are removed from Irish roads per year. The Hammond Lane Metal eo. Ltd. offers a service to Local Authorities to collect abandoned cars. This service is quick and efficient and is done with the full approval of the Gardai.
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also offer a service to all Local the Multilift Containers are put personnel can put any abandoned into same. Any C.F.C. in fridges delivered to the Fragmentation
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The Hammond Lane Metal Co. Ltd. Authority Landfill sites where on site and the landfill site cars, household appliances etc. is first removed before being Plant.
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The Hammond Lane Metal eo. Ltd. offer their Multilift Container Services to structural steel fabrication Companies, Engineering shops, and steel stock holders and manufacturers of all items in ferrous and non ferrous metals. This service is also available to demolition firms.
The Hammond Lane Metal Co. Ltd. hire Companies in the Country.
take scrap from all waste skip
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The fact that these in the past have been abandoned at the side of the road, sometimes in scenic locations, and sometimes on main road routes has given a very bad impression to vi si tors and (potential) visiting industrialists and, indeed, is something that most Irish people would like to see stopped. The fact that there will be 2 plants i.e this one and the one in Ringaskiddy, Cork available for recycling unwanted scrap vehicles, domestic applicances, farm machinery etc. is a very significant asset to the country.
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7o2 EMPLOYMENT
The Hammond Lane Metal Co. Ltd. Fragmentation Plant will employ 25 people at the Pigeon House Road site. Short term it is not expected to have any effect on local employment as staff will be transferred from the nearby Sir John Rogersons Quay site. The construction of the Fragmentation Plant on the new site will provide employment for a number of people and it is expected that contracts will be placed \•li th local (Dublin) Contractors ~;...rhere possible. The provision of goods and services to the Plant will provide additional work as at Sir John Rogersons Quay at present.
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This project will be a substantial user of electricity and the ESB will benefit greatly from this.
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The export of some 100,000 tonnes, total, of all types of scrap will benefit Dublin Port and Docks Board.
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7a3 NOISE
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During the daytime the mean value of the existing LAeq outside the Coastguard Cottages is in excess of 60dBA. The· expected contribution from the proposed development is LAeg of 50 dBA. This would not increase the existing noise level. The same applies to houses at Lucas Road and at Pigeon House Road. The houses at Clare Kyle Road would be substantially screeded from the proposed development with the result that the contribution from the proposed plant would be in the order of L~eq of 40 dBA. This would not increase the existing noise level ln this area. Consequently this noise impact on any of the nearest houses would be negligible.
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7.4 ROADS AND TRAFFIC When the operation on this site commences The Hammond Lane Metal Co. Ltd. intend to ship all our ferrous scrap both to Irish Steel Ltd., Cork and to other E.C. Countries. While this is what is envisaged at present, this could change as some scrap could be delivered to Irish Steel Ltd. Cork by road rail system. This usually means scrap going in containers from the new site off Pigeon House Road across the Toll Bridge direct to the Freight section of Iarnrod Eireann at North Wall, Dublin. We would expect to have 150/200 truck movements per week.
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While this development is a modern recycling Plant The Hammond Lane Metal eo. Ltd. still do get in the odd loads of scrap by horse and cart. to f c Fo op r i yr ns ig pe ht ct ow ion ne pu r r rp eq os ui es re o d nl fo y. ra ny
The movement of traffic would be far less than movement traffic which was generated by the previous occupier.
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The present road capacity is very much less than its design capacity. Therefore this project would only have a slight increase in the overall level of traffic and the road system would be more than able to cope with same.
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7.5 SURFACE WATER All surface water off the site will pass into the existing surface drainage system and sedimentation sumps in road gulleys and 2 no. sedimentation chambers. before leaving this site and continuing in the present surface water system to discharge to the river.
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The quantity of surface water run off will be not different from that at present.
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7.6 WASTE DISPOSAL
The amount of dust and dirt generated by the plant processing 65000 tonnes of raw scrap material per year will be approx. 10000 tonnes. This, as described earlier, will be separated out during processing, stored separately and removed off site on a daily basis. The waste will be brought in a truck to an approved Authority landfill site. The waste is non-toxic. The clear water tank will be emptied every 2 years approved waste disposal firm. The water is non-toxic.
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The above operations are similar to that carried out at present in the nearby Sir John Rogersons Quay site.
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APPENDIX
8.1 Photograph of Site Location. 8.2 Location Plan. 8.3 Site Layout Plan. 8.4 Lindemann - Zerdirator Shredder.
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8.5 Measurement of existing noise levels.
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