mine water treatment soq

Statement of QualificationsMine Water TreatmentAdvanced filtration & separation technologies forincoming and discharge (waste) water streams

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Contents

Introduction

Total Cleanliness Management

Enabling a Greener Future

Leadership Recognition

Representative Projects

Global Offices

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Pall’s Global Mining PresencePall Corporation is a filtration, separation and purification leader providing solutions to meet criticalmine water treatment objectives of mining customers for open cut and underground installations.With offices around the world, Pall can provide detailed water process chemistry review and offerindustry leading membrane technologies and services. These products and services are specificallydesigned and optimized to meet both the mining customer objectives and to be environmentallycompliant to external regulatory controls.

For more than 50 years Pall has been a dependable source of innovative technical solutionsdesigned to ensure water chemistry optimization, deliver maximum productivity, and have dependable equipment operating costs.

Total Cleanliness Management (TCM)Total Cleanliness Management (TCM) is a comprehensive program specifically designed for eachof Pall’s mining customers. TCM begins with an in-depth review/analysis of each customer’s waterchemistry. Then we recommend and build a package of selected membrane filtration and separationequipment, diagnostic/monitoring devices, and on-site consulting services that will help the customer achieve the highest process efficiency at the lowest operating cost.

Mine Water IssuesPall Corporation defines mine water treatment into two categories:• Incoming water quality or quantity not sufficient for use in the process (e.g. dust suppressionwater, cooling water, boiler feed water) or for potable water needs♦ e.g., poor surface water quality: colloids, solids (TSS), microbiology, dissolved solids (TDS),

variability• Discharge (waste) water quality (TSS, turbidity, specific ions, etc.). Water needs treatmentprior to use / reuse or discharge ♦ e.g., treatment of intrusion / mine water prior use / reuse (turbidity, Fe, Mn)

We believe that mining investment in water treatment technologies should be such that the solutionenables the mining customer to meet current and future discharge regulatory requirements whilemeeting high variability and potential changes of raw water / mine water quality.

Water in mining comes from several sources: • Surface water (lake, river, sea…)• Ground or spring water• Municipal water (towns water)• Secondary effluent (from biological waste water treatment plants, e.g. municipalities reuse)• Lagoon/pond water (may include run-off water, storm water, intrusion water, groundwater, miningdrainage water including Acid Mine Drainage, or dewatering wells)

• Tailing storage facilities

Depending on where the water is coming from and where the water is used, contaminants in the watercan be harmful for the operation (assets and efficiency), staff/people (health) and/or environment (nature).

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Depending on the water source, contaminants can be present across the entire range

• Suspended solid contaminants can be removed by♦ Up front settlement of bulk contaminant by pond/lagoon or clarifiers (bulk removal)♦ Filtration with Pall Aria® membrane filtration system or disposable range of products

• Dissolved contaminants can be removed by♦ Oxidation, coagulation or precipitation followed by an Aria system♦ Reverse Osmosis (RO) / Nanofiltration (NF)*♦ Ion Exchange (IX)* or EDI

* Note: it is necessary to protect RO, NF and IX with an upstream Aria system

Pall’s mine water team can help mining customers:•…with innovative filtration solutions for challenging incoming water or discharge (waste) waterstreams, allowing mines to meet discharge requirements♦ … by treating water for reuse (e.g. as process water or to cope with shortages in arid areas)♦ … become less dependent on external water supplies

Contaminants and Pall Corporation’s membrane separation technologies

Range where contaminants mayexist in a dissolved / suspended state

Inorganic salts Organics Colloidal Virus / Bacteria Mineral / General / Mixed

Size (µm) Size (µm)0.0001 0.001 0.01 0.1 1.0 10 100

Dissolved Suspended

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Setting the Standard, Sharing the ResponsibilityPall Corporation recognizes and embraces its role as a global citizen, including an obligationto the environment. Pall is dedicated to helping customers minimize their water and carbonfootprints, maximize recycling and waste reduction efforts, and ensure the most efficient utilization of natural resources and raw materials. We are applying the same know-how anddedication to our own operations.

Pall’s approach to environmental stewardship is proactive and is anchored in a culture of continuous improvement. We team with customers in ways specific to their industries, providing them with technologically superior products and engineered process solutions that improve and strengthen their businesses while reducing their environmental impacts.Customers worldwide look to us to help them purify and conserve water, address waterscarcity, consume less energy, make alternative energy sources possible, and minimize emissions, pollutants, and waste.

Pall has integrated aggressive environmental sustainability metrics into our business by usingglobally accepted greenhouse gas protocols to measure and manage carbon emissions. Weare also a partner in the U.S. Environmental Protection Agency’s Climate Leaders program, an industry government partnership committed to developing long-term climate change strategies.

We encourage you to visit our Web site at www.pall.com/green for updates on progress, aswell as for information about other environmental initiatives.

Pall’s approach to environmentalstewardship is proactive andanchored in a culture of continuous improvement.

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Leadership Recognition

NYSE (Since 1992) Pall Corporation is a publiclytraded company listed on the New YorkStock Exchange under the ticker PLL. Listedcompanies must continuously meet rigorousfinancial and governance requirements.http://www.nyse.com

Fortune 1000(Since 1991) Pall is included in theFortune 1000, an annual list compiled andpublished by Fortune magazine that ranksthe top 1000 U.S. closely held and publiccorpo rations by revenue.http://money.cnn.com/magazines/fortune

S&P 500(Since 1987) Pall is included in the S&P500 index—one of the most commonlyused benchmarks for the overall U.S. stockmarket. The S&P 500 is a capitalization-weighted index published since 1957 ofthe prices of 500 large-cap commonstocks actively traded in the United States.http://www.standardandpoors.com

Business Recognition

Environmental RecognitionISO 14001 CertificationISO 14001 is the international standard forenvironmental management systems.Worldwide, all of Pall’s plants have achievedISO 14001 certifi cation. Certified companiesmust provide assurance about their ability tosatisfy quality requirements and to enhancecustomer satisfaction in supplier-customerrelationships.http://www.iso.org

EPA Climate Leaders(Since 2008) Climate Leaders is an EPAindustry-government partnership thatworks with companies to develop comprehensive climate change strategies.Partner companies commit to reducingtheir impact on the global envi ronment bycompleting an inventory of their green-house gas emissions, setting aggressivereduction goals, and annually reportingtheir progress to the U.S. EPA.http://www.epa.gov

Carbon Disclosure Project(Since 2008) Pall par ticipates in theCarbon Disclosure Project (CAUP), a globalinitiative to inventory greenhouse gas(GHUZ) emissions and evaluate the risksand opportu nities from climate change onbusiness operations. Companies use theirannual GHG inventory to make informedand effective policy decisions to reducetheir carbon footprint.http://www.cdproject.net

Cleantech Index(Since 2006) Pall is included in the CleantechIndex—the first stock market index intendedto reflect the surging demand for clean technology products and services. Theindex is comprised of companies that areglobal leaders in Cleantech across a broadrange of industry sectors, from alternativeenergy and energy efficiency to advancedmaterials and air & water purification.http://cleantech.com

FTSE4Good(Since 2001) Pall has been inde pendentlyassessed according to the FTSE4Good criteria, and has satisfied the requirementsto become a constituent of the FTSE4GoodIndex Series. FTSE4Good is an equityindex series that is designed to facilitateinvestment in companies that meet globallyrecognized corporate responsibility standards.http://www.ftse.com

Technology RecognitionEngineering Materials AchievementAward(2010) Pall Corporation won the prestigiousEngineering Materials Achievement Award(EMAA) for 2011 for its porous iron aluminidetechnology. The award, which recognizesoutstanding achievements in the field ofmaterials science, is given annually to onecompany by ASM International, a societydedicated to the development and commercialization of materials that advanceproduction techniques and facilitate inno vation.http://www.asminternational.org

National Inventors Hall of Fame(2008) Dr. David B. Pall, founder of PallCorporation, was inducted into theNational Inventors Hall of Fame. Dr. Pall’sbody of work in the field of filtration science earned him a place among legendary innovators including AlexanderGraham Bell, Walt Disney, Thomas Edisonand Henry Ford.http://www.invent.org

National Medal of Technology(1990) On behalf of Pall Corporation, Dr. Pall received the National Medal ofTechnology, the highest technology honorin the United States. Other past winnersinclude Microsoft, Applied Materials,Proctor & Gamble and Johnson & Johnson.http://www.uspto.gov

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Application: Coal Seam Gas (CSG) Produced Water Treatment

Location: Queensland, Australia

Solution: Integrated Membrane System (IMS): Microfiltration (MF), Reverse Osmosis (RO) and ancillary skid

Capacity: Containerized CSG IMS including: Microfiltration (MF) and Reverse Osmosis (RO) services (withsupporting services container) on coal seam gas produced water

12 MLD (3.2 MGD)

Status: The design allowed for an initial capacity of 9 MLD (2007), upgraded to 12 MLD in 2008

Coal Seam Gas (CSG) now accounts for approximately 80% of the gas used in Queensland. For many of the CSGfields, water is present over the coal deposit and in the coal cleats or fractures. Gas production is initiated bylowering the pressure in the coal seam, by pumping off the water contained in the cleats, allowing the gas to‘desorb’ from within the coal and flow to the surface. CSG production will typically involve a large flow of waterinitially and the water flow will diminish as the gas production ramps up. The water quality is highly variable anddiffers significantly not only from field-to-field, but also within the field itself from well to well and over the life ofthe field. It can be moderately brackish to saline, with a wide range of potentially fouling/scaling constituentsincluding high-suspended solid levels, metals, silica, and other ions.

The design allowed for an initial capacity of 9 MLD, easily upgradable to 12 MLD (which was done in 2008) andpotential expansion to 15 MLD.

For this CSG application, Pall provided the MF system including all CIP and pre-treatment facilities configured forcontainerized installation as part of a mobile water platform fleet for irrigation. The IMS facility was broughtonline on Dec 23, 2007 and has been operational since that time. In 2008 capacity was increased to 12 MLD.Discharge license conditions have been consistently met, with pH and conductivity being constantly measuredand recorded. The Pall MF system continues to operate reliably with little operator involvement.


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Application: Potable Water Production

Location: Australia, Army

Solution: Microfiltration (MF), Reverse Osmosis (RO), and ancillary equipment skid

Capacity: 0.4 MLD MF (0.1 MGD) – 0.1 MLD RO permeate

Status: • Full Military Spec Design and prototype accredited• First 14 production units complete• Order received for 9 additional units

Pall has been contracted to provide the Australian Army (value ~$24 M Aus) with design, fabrication, supply, and full through-life support and maintenance services for 14 specialized MF and RO systems and self-sufficientservice units. These units meet high level military specifications (COG, weight, vibration resistance, required documentation, etc.).

These customised modular systems were fully designed and fabricated in Pall’s Somersby facility (NSW), andwere designed for rapid deployment for military purposes or humanitarian aid to provide purified water from avariety of sources (e.g: seawater with surf harvesting, or inland contaminated surface waters).

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Application: Arsenic Removal

Location: Gold mine, Nevada, U.S.

Solution: Microfiltration (MF)

Capacity: 120gpm (0.65MLD)

Status: Installed and operating since 2006

Pall Corporation supplied an Aria AP-3 skidded microfiltration (MF) system to a gold mining customer located inNevada. The skid was designed for 120 gpm flow. Tetra Tech was the engineering firm responsible for the designand construction of the plant. The Pall MF system removed arsenic from a groundwater source following chemical pre-treatment.

The overall process consisted of chemical addition of oxidant (sodium hypochlorite) and coagulant (ferric chloride),a Pall Aria AP-3 system, three acid ion exchange vessels (to remove radium), and a salt storage/brine generationtank.

Prior to the design phase, Pall Corporation worked with Tetra Tech and conducted a 2 month pilot testing programto determine design criteria for chemical dosages, membrane flux, and to evaluate chemical dosing, water temperature, arsenic oxidation state and pH adjustment.


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Location: Gold mine, Alaska, U.S.


Capacity: 800gpm (4.3 MLD)

Status: Installed and operating since 2007.

Pall Corporation supplied 2x Aria AP-4 skidded microfiltration (MF) systems to a gold mine located in Alaska. Totalflow was 800 gpm. Tetra Tech was the engineering firm responsible for the design and construction of the plant.The Pall MF unit treated pit dewatering water containing arsenic concentrations above 170 ppb.

Tetra Tech conducted on-site bench scale testing and with Pall process engineers, determined an optimal dosingtreatment process for both arsenic and antimony removal. The full scale treatment plant utilizes pre-treatmentwith ozone and primary settling in two plate clarifiers followed by the two Pall Aria AP-4’s MF skids in parallel.

The remote aspects of Alaska led to challenging construction conditions. All piping over 4000 linear feet (1220 m)and tanks were heat traced and insulated. The water treatment plant was successfully integrated into the mineprocess through a common SCADA system.

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Application: Brine Wastewater Treatment

Location: Natural gas storage facility, U.S.

Solution: Microfiltration (MF), Pall Aria Mobile trailers

Capacity: 12MGD (45 MLD)

Status: Installation in phases, starting with pilot project of 4x trailers in 2010, to full production usage of12x trailers in mid 2011

With the rising importance of natural gas as an energy source, significant effort is being given to the developmentof large underground storage facilities to bridge the gap between natural gas production and the sale of the gasfor energy use. These massive storage facilities are created by means of salt cavern leaching. Using heated rawwater circulating through an underground well, developers slowly leach large caverns in deep salt pillars that arethen utilized for the storage of compressed natural gas.

Salt pillars contain not only salt but are laden with clays, sands, and gravels due to geologic processes. Brineextracted during leaching can contain onerous loads of suspended solids. Filtration of these solids to a 2 micronlevel is a regulatory requirement that must be met before the salt brine can be disposed by injection into aneighboring salt pillar. Current industry practice is to use hydrocyclones followed by disposable filters to removethese sediments. While simple in concept, this traditional process comes at enormous operating costs.

Pall Corporation, working with Tetra Tech, optimized waste brine handling for 4 salt caverns that could store over48 billion cubic feet of natural gas.

Following a 4 MGD (15 MLD) pilot test, the project resulted in the building of a full-scale 12 MGD facility.


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Application: Coal Seam Gas Produced Water Treatment

Location: Queensland, Australia

Solution: Integrated Membrane System (IMS): Microfiltration (MF) and Reverse Osmosis (RO)

Capacity: 9 MLD (2.3 MGD), upgraded to 12 MLD in 20084 x Aria 6CSG MF systems3 x Aria 3CSG RO skids

Status: Installed December, 2007Upgraded to 12 MLD in 2008

This project involved the design, fabrication, supply, and commissioning of a complete IMS (Integrated MembraneSystem) for a Coal Seam Gas Development. Due to the remote nature of the site, a high degree of modularized(or skid mounted) systems were required, minimizing on-site labor costs and time. Project scope included pre-strainers, MF skids, RO skids, interconnecting pipe work, MCCs and ancillary equipment (CIP skids, chemicaltransfer and dosing, compressed air systems, and plant-wide control / SCADA).

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Application: • Desalination of Coal Mine Brackish Water • Treatment of River Water for Potable Water

Location: Underground Longwall Coal Mine, Australia

Solution: • Microfiltration (MF) & Reverse Osmosis (RO) for brackish water • Microfiltration (MF) and dosing for river water

Capacity: • 1.28 MLD (0.33 MGD) freshwater permeate by MF & RO desalination (expandable in 2 futurestages to 3MLD and then 5 MLD)

• Potable water production 0.06 MLD by MF

Status: Commissioned in 2011

The dewatering of underground coal mines results in large volumes of brackish water that requires desalination toallow its re-use as process water for machinery cooling and dust suppression in the longwall mining machinery.As the mine expands, the volume of brackish water produced increases and the salinity (TDS) also increases overtime.

A flexible design approach was taken to minimize initial capital costs. This enabled operation for the first 5 yearsand allowed expansion to accommodate larger flows and higher TDS feeds via a relatively simple ‘plug and play’upgrade.

2 x Pall Aria AP4 MF systems remove suspended solids and metal precipitates before desalination by a 2 stageRO skid running at 80% recovery. A separate Aria AP1 MF plant produces potable water from a river water feed.

Pall Corporation provided all the equipment and overall process guarantee. Moree Engineering provided civilengineering, electricals, tanks, miscellaneous services, design, and installation.


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Application: High Recovery Longwall Coal Mine Pit Waste Water Treatment Plant

Location: Underground Longwall Coal mine, Australia

Solution: Integrated Membrane System (IMS): Microfiltration (MF) & Reverse Osmosis (RO)

Capacity: 2.5 MLD (0.66 MGD)


This mine operates sensitive machinery and equipment that relies on a constant supply of good quality freshwater. To improve the sustainable performance of its operations, Pall Corporation worked with the mine’s partnerfor sustainable environmental improvement to develop a facility to:

1) Minimize the consumption of mains water and 2) Decrease the salinity of water discharged from mine operations into the local creek and river systems

An integrated membrane system (IMS)filtration plant was designed and built at the mine site – the first of its kindto be built for the Australian mining industry.

The plant uses a range of technologies, such as microfiltration, weak acid ion exchange resin, and reverse osmosis to desalinate low-level saline waste water that is pumped from underground workings. It is capable ofprocessing 28.9 litres/second (458 GPM) or 2.5 MLD. The plant is equipped with a host of on-line chemicalanalysis systems to monitor the performance of the facility.

The design of the plant and process allows a high (~ 92%) recovery rate such that up to 2.3 MLD of fresh watercan be produced. This water is recycled for use in the mine and to reduce the amount of water purchased fromthe municipal supply.

In the first year of the plants operation, the mine’s demand from the mains supply was less than one third that ofprevious years, resulting in an annual saving of 241 million litres. The water saving earned the mining companythe Largest Reduction Award in Sydney Water’s Every Drop Counts Business Programme Awards.

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Application: TSF Discharge Waste Stream Recovery

Location: Underground Nickel Mine, Manitoba, Canada

Solution: Integrated Membrane System (IMS): Microfiltration (MF) & Reverse Osmosis (RO)

Capacity: 400gpm (2.2 MLD)


Pall Corporation received an urgent distress call from the local mine management. The mine was in violation oftheir mine dewatering discharge permit and was ordered by the province to stop discharging water, i.e. to shutdown mine operations.

Dewatering water was being sent to the tailings storage facility that, because of additional volume from rainfall,was about to burst and discharge into the river. Minimum dewatering flow was 400 gpm. Time had run out andthe mine had only 20 days left of available TSF storage. If the mine had shut down operations and stopped thedewatering pumps, the mine shaft would have been flooded and water would have destroyed $50M worth ofunderground mining equipment. The unacceptable alternative would be to continue to discharge and knowinglyviolate the permit, which would amount to substantial daily fines.

To avoid these outcomes, Pall Corporation worked in conjunction with Tetra Tech to conceptualize, design, build,procure and commission a complete water treatment plant. This project was completed in 19 days and was thefastest build and deployment in Pall’s mining history. News of this fast track deployment success quickly spreadthroughout the Canadian mining market.


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Location: Gold mine, Nevada, U.S.

Solution: Microfiltration MF

Capacity: 0.7 MGD (0.19 MLD)


Pall Corporation, working with Tetra Tech, designed and constructed a 50 gpm capacity WTP that included coagulation-assisted microfiltration (MF) for arsenic removal from a groundwater source.

The process involves chemical addition of oxidant (sodium hypochlorite) and coagulant (ferric chloride) and a PallAria AP-2 microfiltration (MF) skid. Prior to design, pilot testing was conducted for 3 months to determine designcriteria for chemical dosages, membrane flux,chemical dosing, water temperature, arsenic oxidation state, andpH adjustment. Source water is 150 ppb As and high silica, but low hardness and alkalinity. Operation interface isless than one hour per day.

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Application: Wastewater Treatment

Location: Gold mine, sub-Sahara Africa

Solution: Integrated Membrane System (IMS): Microfiltration (MF) and Reverse Osmosis (RO)

Capacity: • Dewatering pit, 2x PAM MF Containers 2.778 MLD (0.73 MGD)• TSF, 2x PAM MF Containers, 1x RO and 1x RO CIP container 2.82 MLD (0,74 MGD)


Pall Corporation worked with Tetra Tech under an EPC to execute and satisfy a water management challenge at agold mine in a very remote part of sub-Sahara, Africa.

Standard MF containers were supplied and a custom RO container was designed. Membrane technology treatedboth the dewatering pit and the discharge from the tailings pond that was being discharged into the local river.Also, a side potable water stream was fed to the mine camp and the local village. HMI / SCADA interface wasimplemented into the current PLC operational protocol of the mine. The operators received detailed water treatment plant training.

The mine faced significant water challenges caused by excess process circuit water from their mining operations.They also required the rapid treatment and discharge of accumulated pit water in order to resume mining theiropen pit operations. Tetra Tech was commissioned to design a two-train water treatment facility to handle theexcess water from the TSF and accumulated pit water.

Tetra Tech and Pall Corporation developed a detailed treatment process for addressing the complicated waterdischarges caused by stringent discharge standards (for metals and inorganic constituents). Tetra Tech performedthe complete detailed design of the water treatment plant including all surrounding infrastructure. The final plantincludes lime/soda ash softening followed by integrated microfiltration (MF) and reverse osmosis (RO) membranes.An innovative technology of forced air thermal evaporation was used to manage the brine waste generated fromthe reverse osmosis process

Being so remote also presented many logistical and security challenges. These were overcome, and the plant isfully operational.


Application: Potable Water Treatment

Location: Coal Mine, Russia, Kemerowo Siberia


Capacity: 0.63 MGD (100 m³/h); AriaTM AP-6

Status: Under construction – start up expected in 2012

This is the first water treatment system sold to a Coal Mining Company in Siberia/Russia for potable water. Thesuperior design of the Pall Aria MF system will provide safe water at all times, independent of variations of thefeed quality.

This is a vast improvement compared to undefined effluent quality of sandfilters, UV lamps etc., and was the pri-mary reason the customer chose to use Pall membrane-technology. A local partner company was involved tosupply the local service.

Application: Drinking water for mining-staff

Permeate quality: Meets drinking water standard (pathogen removal; Fe/Mn-removal; turbidity free; microbiological clean) to provide water supply for operators, canteen, showers, etc.

Feed water: Underground well water

Pretreatment: Oxidation (aeration)

Siberia’s cold environment (temperatures to -40 °C in winter) and cold water creates challenging design and construction conditions. Pall’s reliable and robust technology, used and approved by the market (ARIA with morethan 600 installations), was chosen for its suitability for the purpose of water treatment.

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Pall Industrial Sales Offices

Machinery and Equipment

25 Harbor Park DrivePort Washington, NY 11050 +1 516 484 3600 telephone+1 888 333 7255 toll free US

Melbourne - Australia+61 (0)3 9584 8100 telephone+61 (0)3 9584 6647 fax

Visit us on the Web at www.pall.com

Pall Corporation has offices and plants throughout the world. For Pall representatives in yourarea, please go to www.pall.com/contact

Because of technological developments related to the products, systems, and/or servicesdescribed herein, the data and procedures are subject to change without notice. Pleaseconsult your Pall representative or visit www.pall.com to verify that this information remainsvalid.

© Copyright 2011, Pall Corporation. Pall, , and Ultipleat are trademarks of Pall Corporation. ® indicates a trademark registered in the USA. Filtration. Separation. Solution. and ENABLING A GREENER FUTURE. are service marks of Pall Corporation.

MEMWTEN February 2012

mine water treatment soq

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