Transcript
POREX FILTRATION
Solutions Through Material ScienceSM
Porex Corporation World leader in porous polymer technology Working in partnership with world leaders in global markets Innovating with a Materials Science and Engineering focus Providing structural porous solutions to real world problems
Solutions Through Material ScienceSM
Porex Corporation Develop and Manufacture Porous Plastic Components
GROUP PROFILE Global Manufacturing Capability Atlanta – 1 sites
Advanced Membrane Formulation and Deposition Technology
Germany – 2 sites
Complete State-of-the-Art Tooling
Scotland
Advanced Polymer Laboratory
Malaysia
Global Capabilities
China – 2 sites
High Volume Technologies
600,000 square feet globally
Proprietary, Cost Effective Manufacturing Capability
725 employees worldwide
Solutions Through Material ScienceSM
Porex Filtration Radial Cartridge
Cutting Edge Capability Materials Science
Tubular Membrane
•Polymers/particles •Fibers •Membranes/Coatings •Additives
Tubes and Sheets
PTFE Cartridges Solutions Through Material ScienceSM
Polymer Materials
Porous Structure
• Polyethylene (PE) • Polypropylene (PP) • Polyvinylidene fluoride (PVDF) • Polytetrafluoroethylene (PTFE) • Ethyl Vinyl Acetate (EVA) • Nylon (N6) • Polyethersulfone (PES) • Polycarbonate (PC) • Range of other thermoplastics
Solutions Through Material ScienceSM
POREX Radial Cartridge Filter POREX Radial Cartridge Filter is a patented porous plastic cartridge that offers high flow capacity and long service life. The single layer, one-piece finished structure is back-washable and cleanable.
Solutions Through Material ScienceSM
FILTRATION EFFICIENCY 5 micron rated filter Initial Retention Efficiency results per ASTM 79588, based on a single pass using a 2.65” diameter cartridge 10” long, at a flow rate of 3gpm/ft2 of water with ISO Test Dust and Polystyrene beads. Particle Retention
120.00
100.00
Retention, %
80.00
60.00
PSL Beads AC Fine 40.00
20.00
0.00 0
2
4
6
8
10
12
14
Channel, micron
Solutions Through Material ScienceSM
Porex Filtration Sheets and Tubes Sintered porous plastic is molded into sheets and tubes of various dimensions for assorted filtration applications including filter presses, dewatering pads, dust collection, etc.
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF)
Porex TMF Module • •
• • • •
High Flux Typical operation flux rate 300-500lmh High solid concentration solids level requirements up to 5% (by weight) Excellent Chemical Resistance pH 1-14 Back-washable at large pressures up to 20 psi easily Minimal Pretreatment required Extremely Durable construction
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF)
What is TMF •
Microfiltration (MF) is a low pressure (0.7 – 7 bar, 10-100 psig) separation process for separation of solids from aqueous solutions by means of a membrane.
•
This “crossflow” process is carried out by having a process solution flow along a membrane surface under pressure.
•
Retained particulate matter leaves with the flowing process stream and does not accumulate on the membrane surface
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF) What Do Microfilters Filter?
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF) Microfiltration System/Processes •
The Porex TMF Membrane modules contain 20 year old applications combined with cutting edge innovation and materials
•
The strongest, most durable and chemically cleanable membrane product available today
•
All PVDF construction can replace many ceramic membrane products
•
Extremely Chemical and abrasion resistant
•
Tight membrane pore size control provides outstanding filtrate quality, SDI (typically less than 1.0 NTU)
•
Large diameter allows very high solids loading without pretreatment restraints
•
More forgiving than hollow fiber
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF) Materials of Construction
Membrane with nominal pore size of 0.05, 0.1, 0.5, (0.01 soon)
PVDF membrane material
HDPE or PVDF substrate material
Tubular configuration with 1” or 1/2” diameter
Housing materials of PVC, CPVC, SS, all PVDF, other options on request.
Up to 60 C Temperature PE, up to 100 C Temperature PVDF tubes
Solutions Through Material ScienceSM
Membrane/Substrate • Unique abrasion resistant topography • PVDF membrane with PE or PVDF sintered substrate • Membrane is in the pores of the substrate • Anchored into substrate by full depth entanglement • Also chemically bonded in the all PVDF option
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF)
Typical Microfiltration Wastewater Treatment Process
Solutions Through Material ScienceSM
Typical TMF System PVC Piping Back Pulse Column Membrane Modules
Concentration Tank Coated Steel Frame Cleaning Tanks Circulation Pump
Solutions Through Material ScienceSM
Backwash
•
Backpluse • Often PLC controlled • Typically engaged every 5 – 30 minutes (20 is standard). • Used to prevent excessive solids accumulation on membrane surface • Filtrate is forced back through membranes using air pressure • Air must not be allowed to reach membranes
• Photo of Backpulse column
Solutions Through Material ScienceSM
Porex TMF Sys Victaulic clamp
Metal clamp
Membrane module
tem Filtrate tubing
U-bend
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF)
Technology Typical Membrane Cleaning Chemicals •
Acid: 5-10% H2SO4 or 5-10% HCl solution (removal of metals)
•
Alkaline: 3-5% NaOH solution (removal of silica, some organics)
•
Oxidizers: Acidic solution (mixture of 5-10% H2SO4 / 3-5% H2O2) Alkaline solution (mixture of 5-15% NaOCl / 1-3% NaOH) (removal of organics)
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF)
Elements Removed or Reduced with Membrane Microfiltration
Regulated heavy metals (Cd, Cu, Cr, Ni, Pb, Zn.) Arsenic (As) Fluoride (F) removal Removal of specific contaminants such as Ba, Mo, Fe, Al, Sn, Ra, phosphates (PO4), phosphorus (P), glass particles (Wafer and glass grinding) Hardness removal (Ca, Mg) Removal of dyes, pigments Reduction of SO4 BOD5, COD, TOC Pre treat for RO and increased recovery of RO with chemical softening Removal of oil emulsion from water
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF) What Can TMF Membrane Achieve?
Typical Metal Finishing and Printed Circuit Board Applications
Contaminant
Influent (mg/L)
Membrane Filtrate (mg/L)
Cadmium - Cd
10 - 30
< 0.05
Chrome - Cr
10 - 50
< 0.1
Copper - Cu
20 - 130
< 0.1
Iron - Fe
5 - 100
< 0.1
Lead - Pb
1 - 15
< 0.1
Nickel - Ni
5 - 75
< 0.1
Zinc - Zn
5 - 130
< 0.1
Solids - TSS
10 - 500
< 1.0
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF) What Can TMF Membrane Achieve?
Water Softening Applications , Cooling Tower Blowdown, Industrial Process Streams, Petroleum Well Water
Parameter
Influent
Membrane Filtrate
6.5 - 7.5
10.5 - 11.0
7,000 - 20,000
3,000 - 15,000
Calcium (mg/L)
200 - 900
1 - 40
Magnesium (mg/L)
100 - 600
1 - 40
Silica (mg/L)
10 - 150
2 - 20
1 - 40
<1-5
pH (s.u.) Conductivity (μS/cm)
Barium (mg/L)
Solutions Through Material ScienceSM
TMF LABORATORY PILOT UNIT
Solutions Through Material ScienceSM
Laboratory Testing • Pilot Testing (laboratory) – Conducted in 2 tube pilot unit using chemistry determined in screening test – Determination of filtration flow for sizing of the system – Confirmation of effluent quality – Determine if foulants can be cleaned from membrane – 100-500 gallons of sample required – Testing duration is 2-5 days • Sample is recirculated through system – Most systems can be designed based on this test.
Solutions Through Material ScienceSM
Field Pilot Testing • Pilot Testing – Conducted at customers site – Testing is conducted using chemistry determined in lab tests – Various size pilot units can be used – all scale up well – Confirmation of effluent quality and flux rates – Advantages • Several run and clean cycles • Variation in wastewater characteristics – Testing duration is 2-8 weeks or longer if necessary
Solutions Through Material ScienceSM
Power Generation Process Water Pre Treatment • • •
•
• •
Water Flow rate: 120m3/h Operation date: December 2008 Application: Pre treatment of surface water, well water and recycling of cooling tower water TMF as the pretreatment to RO including RO reject recycle with 95%+ recovery, remainder to crystalizer for ZLD Type of membrane: MME3S01613VP Number of modules: 120
Solutions Through Material ScienceSM
Electroplating Wastewater • •
• •
Water Flow rate: 200gpm TMF as the pretreatment of discharge to remove the copper, silver, and other heavy metals. Type of membrane: MME3S01610VP Number of modules: 48
Solutions Through Material ScienceSM
Printed Circuit Board Wastewater • • • •
• •
Water Flow rate: 120m3/h Operation date: December 2008 Application: PCB wastewater Removal of copper, other metals and COD, BOD as pretreat to RO Type of membrane: MME3S01613VP Number of modules: 120
Solutions Through Material ScienceSM
Oil/Water Separation
• • • •
• •
Water Flow rate: 2500 lph Operation date: Nov 2011 Application: Oily wastewater TMF as the pretreatment to concentrate the carrier oil/dye. Permeate recycled via GAC and Ion Exchange filters Type of membrane: MMV2005601VP Number of modules: 120 expandable to 156
Solutions Through Material ScienceSM
Battery Recycling Plant Waste water • • • • •
•
Water Flow rate: 16m3/h Operation date: January 2011 Type of membrane: MME3S01613VP Number of modules: 18 To remove heavy metals from battery recycling waste water , permit levels Cd<0.05, Ni<2.0 Permeate below measurable limits for Cd and Pd, and 0.436ppm for Ni.
Solutions Through Material ScienceSM
Hotel laundry wastewater recovery • • • • •
Flow rate: 20 m3/hr Type of membrane: MME3S01613VP Number of modules: 24 Operation date: Sept. 2011 Application : Wastewater recovery of laundry waste water including reduction of, COD, BOD iron and detergents.
Solutions Through Material ScienceSM
Tequila production vinaza (stillage) water recovery • • •
Flow rate: Pilot system (3gpm) Operation date: Feb. 2011 Application : Wastewater recovery. Pre RO solids removal
Solutions Through Material ScienceSM
Cooling tower blow down • • • • •
Flow rate: 450m3/h Operation date: April. 2005 Application : Cooling tower blow-down TMF as pretreatment of RO System recover: 97％
Solutions Through Material ScienceSM
High salt surface water
• • • • •
Flow rate: 50m3/h Operation date: Aug. 2007 Application : High salt surface water TMF as pretreatment of RO System recover：97％
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF) Wastewater reuse for grinding and CMP wastewater reuse
Abrasive Polishing and CMP Waste
Solutions Through Material ScienceSM
Tubular Micro Filtration (TMF)
Summery of TMF Proven technology for variety of applications Waste Water Processing Heavy Metals High Solids Pre RO Increased RO Recovery w LS CMP/Grinding Water Recycle Oil Water Separation Landfill Leachate Processing Laundry Water Recycle Food and Beverage water and process FGD water recycling Pulp and Paper Chemical Processing Many Others Chemically Inert to most cleaning and process chemicals
Solutions Through Material ScienceSM
