DRINKING WATER FILTRATION CASE STUDIES AND WHITE PAPERS

Disinfectant Residual Control System Eliminates Need For Deep Cycling, Breakpoint Chlorination And Improves Pressure Zone Water Quality
Disinfectant Residual Control System Eliminates Need For Deep Cycling, Breakpoint Chlorination And Improves Pressure Zone Water Quality

Walnut Valley Water District spans a 29 square mile area in semi‐arid southern California about 20 miles east of Los Angeles. Like many water districts planning for growth amid periodic droughts is challenging and compounded by the need to deliver high quality water throughout the district of over 100,000 people and more than 26,000 service connections. Read the full case study to learn how Walnut Valley aggressively pursued operational strategies in their water storage tanks to limit nitrification risk.

Rapidly Pinpoint Biological Hotspots In Your Distribution System
Rapidly Pinpoint Biological Hotspots In Your Distribution System

After reports of Naegleria fowleri amoeba being found in some Louisiana municipalities’ drinking water systems, regulators mandated that free chlorine residual be maintained at a minimum of 0.5 mg/L throughout distribution networks in the state. In September 2014, Thornton, Musso & Bellemin Inc. (Zachary, LA) conducted an extensive sanitary survey in a small municipality to establish baseline numbers and troubleshoot hotspots.

More Case Studies and White Papers

DRINKING WATER FILTRATION PRODUCTS

UltraDynamics® Industrial UV Solutions Ultrapure Water UltraDynamics® Industrial UV Solutions Ultrapure Water

Whether used in the pharmaceutical, electronics, or other industries, ultrapure water systems rely on ultraviolet energy to produce and maintain the highest possible standard of water quality. UltraDynamics® has been providing UV systems for the treatment of ultrapure water for over 20 years. Our series 8102-HIE (standard intensity) and 8102-HO (High Output) offers the flexibility demanded by these industries. Our equipment for ultrapure water applications uses electropolished 316 stainless steel chambers (both inside and out), with removable flanged heads for easy disassembly. All interior welds are ground smooth, passivated, and polished.

S Series S Series
Shelco’s sanitary series housings have been designed for the most critical and demanding applications requiring purity and durability
CeraQ™ Ceramic Filters For Water And Wastewater Treatment CeraQ™ Ceramic Filters For Water And Wastewater Treatment

QUA’s CeraQ™ ceramic membrane modules are designed for challenging water and wastewater applications. These filters are ideal for wastewater recycle or reuse applications in a wide range of industries such as upstream oil and gas, petrochemicals, refinery, food beverage, and textiles. A variety of different pore sizes provides great flexibility to users in designing treatment system for applications covering the filtration spectrum of micro- to ultrafiltration.

Ultrafiltration Membrane System Ultrafiltration Membrane System

WesTech ultrafiltration offers a unique solution to exceed increasingly stringent water quality standards. Membranes with a small nominal pore size (0.01-0.02 μm) provide an absolute barrier to consistently produce high-quality water by removing microbial and viral pathogens, suspended solids, turbidity, precipitated iron and manganese, and coagulated organic matter.

Ozone Generation System Ozone Generation System

In order to generate ozone efficiently using the silent discharge technology, METAWATER offers highly accurate and ultra narrow discharge gap dielectrics with enhanced cooling system. Our Micro Gap™ dielectrics, consisting of 'Robust and Durable' glass lined stainless steel tube, permit the cooling of "Both the outer & inner dielectrics" by conditioned cooling water resulting in significant increase in the rate of heat removal, thus increasing ozone production performance.

Arsenic, Iron, And Manganese Removal By Filtration Arsenic, Iron, And Manganese Removal By Filtration

Removal of Arsenic, Manganese, Iron, Fluoride, Radium and other Heavy Metals is a constant challenge for water purification plants.

Turbidity Filtration: Turbidity Filtration Using Alum Turbidity Filtration: Turbidity Filtration Using Alum
Electromedia® V effectively filters turbid waters at 10 g.p.m. per sq. ft. to produce treated waters having turbidities less than 0.2 NTU
SureSafe™ Filter Cartridges SureSafe™ Filter Cartridges

SureSafe™ Filter Cartridges will inhibit the growth of Legionella on your filter cartridges. Silver has been used to help sanitize liquids for more than 4,000 years. Permanent Silver Zeolite fibers are used to manufacture HARMSCO® SureSafe™ Filtration Media which inhibits the growth of biofilms on and in the filtration media.

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DRINKING WATER FILTRATION PODCASTS

Water Quality Comes Under The Consumer Microscope Water Quality Comes Under The Consumer Microscope

Water quality is getting a lot more scrutiny these days. And that’s a good thing says Russ Swerdfeger, Global Director of Memcor Product Management with Evoqua. Alongside his colleague Daryl Weatherup, Director of Marketing with Evoqua, Swerdfeger recently discussed the future of drinking water and the key issues and concerns facing the water industry right now with Water Talk.

Treatment Alternatives For PFCs Treatment Alternatives For PFCs

Over the past two years, no groundwater issue has perhaps received as much community focus and attention as polyfluoroalkyl and perfluoroalkyl substances like PFOA and PFOS, often referred to as perflourinated compounds (PFCs). The U.S. EPA issued a health advisory, limiting the amount of these compounds to 70 parts/trillion which kicked off a nationwide evaluation of local water sources.

De Nora Doubles Down On Innovation De Nora Doubles Down On Innovation

With 29 locations, 1,600 employees and research facilities in Japan, Italy and the United States, DeNora is one of the largest disinfection and filtration companies in the world. As Gary Lohse, Regional Sales Manager for De Nora, explains in this Water Online Radio interview, the acquisition of the former Severn Trent manufacturing division coupled with De Nora’s product innovation strength is driving enhancements to some of the most respected brands in the water industry.

Selecting The Right Membrane For The Job Selecting The Right Membrane For The Job

In this Water Online Radio exclusive interview, Fred Wiesler, Global Director of Sales for the QUA Group, discusses some of the company’s key products, including the EnviQ that uses a flat sheet PVDF membrane, and has a .04-micron pore size. It provides ultrafiltration quality water, with the strength of a PVDF flat sheet membrane.

High Flux Rates Reduce Energy Footprint Of Membrane Filtration High Flux Rates Reduce Energy Footprint Of Membrane Filtration

PPG Industries has spent the last four years developing and field testing a membrane-based filtration technology that has arrived in the market as both a flat sheet and a spiral on filter cartridge.

Next Generation Membranes For Water Reuse Next Generation Membranes For Water Reuse

Born out of UCLA and the California Inner Systems Institute, Water Planet is focused on revolutionizing water reuse through next generation membrane technology. As Erik Hoek, CEO of Water Planet, explains in this Water Online Radio interview, the company has two core technologies.

More Drinking Water Filtration Podcasts

DRINKING WATER FILTRATION VIDEOS

Amiad AMF Filter Video Amiad AMF Filter Video

The Amiad AMF2 automatic self-cleaning filter series provides polishing filtration using microfiber cassettes with filtration degrees from 20 to 2 micron. Appropriate for fine filtration applications where disposable cartridges would typically be used, NF/RO pre-filtration and iron or manganese removal.

Amiad Arkal Spin Klin Filter Video Amiad Arkal Spin Klin Filter Video

The Amiad Arkal Spin Klin automatic self-cleaning filters utilize disc elements, offered with filtration degrees from 400 to 20 micron. The innovative disc technology offers superior removal of algae and organics in municipal, industrial and irrigation applications, and the polymeric construction makes these filters ideal for use in seawater or corrosive environments.

Amiad ABF Filter Video Amiad ABF Filter Video

The Amiad ABF automatic self-cleaning screen filters are brush cleaned filters offering coarse filtration from 3500 to 200 micron. These filters are built for high-flow and/or low pressure, heavy duty applications including wastewater treatment, industrial intake and irrigation.

More Videos

DRINKING WATER FILTRATION SUPPLIERS

  • AdEdge Water Technologies, LLC.
    AdEdge Water Technologies, LLC.

    AdEdge Technologies, Inc specializes in the development and supply of innovative technologies, adsorbent-based products, and systems that remove contaminants from process or aqueous steams. We are an organization based on solid deliverable, scalable, scientifically proven technology and experience for the removal of arsenic and other contaminants from water

  • WRT - Water Remediation Technology, LLC
    WRT - Water Remediation Technology, LLC

    WRT provides effective processes for removing radium, uranium and other contaminants from water. Our complete package of services includes process equipment, proprietary treatment media, safe exchange of media, and proper handling and disposal of used media

  • Evoqua Water Technologies
    Evoqua Water Technologies

    Evoqua Water Technologies, formerly Siemens Water Technologies, is a leader in water and wastewater treatment products, systems and services for industrial and municipal customers. We offer a wide range of proven product brands and advanced water and wastewater treatment technologies, mobile and emergency water supply solutions and service contract options.

  • Aqua-Aerobic Systems, Inc.
    Aqua-Aerobic Systems, Inc.

    Since 1969, Aqua-Aerobic Systems, Inc. has been a leader in the design and manufacture of wastewater treatment equipment and systems for both municipal and industrial markets, worldwide.

  • Leopold -- A Xylem Brand
    Leopold -- A Xylem Brand

    Leopold Universal Type S and SL Underdrain|Leopold IMS Cap|Leopold DAF - Dissolved Air Flotation|Leopold Clari-Trac (CT2) Submerged Sludge Collector|Leopold Clari-Vac Floating Sludge Collector|Leopold Engineered Filter Media Products|Leopold Instruments And Controls| Leopold Ultrafiltration Membrane Systems

  • SUEZ
    SUEZ

    Water Treatment Equipment |Wastewater Treatment Equipment |Sludge Management Equipment

  • Aquatech International Corporation
    Aquatech International Corporation For over 2 decades, Aquatech has provided industry worldwide with proven water and wastewater treatment systems|We strive to enable our customers to maximize efficiency by concentrating on their core businesses while we provide the leadership and expertise necessary in water treatment|Our mission is to utilize innovation and performance excellence to drive toward the ultimate goal--a lower overall life cycle cost of treatment
  • 3M Separation and Purification Sciences Division
    3M Separation and Purification Sciences Division

    Liqui-Cel® Membrane Contactors are used for degassing liquids. They are most commonly used for O2 removal from water and CO2 removal from water, but they are also capable of controlling a variety of other dissolved gasses as well, such as Nitrogen.

  • QUA Group LLC
    QUA Group LLC

    QUA® is a leading-edge developer and manufacturer of advanced membrane products, which includes fractional electrodeionization (FEDI) and hollow fiber ultrafiltration module (Q-SEP). These are engineered with innovative technologies, which are used to treat challenging waters. QUA is leveraging its deep roots in R&D, the expertise of staff that is highly experienced in water treatment technologies, and its significant financial resources to become a global technology leader in the development of products for water and wastewater treatment applications.

  • Veolia Water Technologies
    Veolia Water Technologies

    Veolia Water Technologies offers comprehensive water and wastewater solutions for industrial and municipal customers. With unique technologies and process expertise, Veolia specializes in engineering, design, and project management, construction and execution.

  • Amiad Water Systems
    Amiad Water Systems

    Amiad Water Systems is a world leader in water filtration equipment and treatment solutions.

    For over 50 years Amiad has been committed to developing a comprehensive line of robust water filtration equipment and integrated treatment packages for water applications in the industrial, municipal (potable and wastewater), oil and gas, commercial HVAC, ballast water, agriculture, irrigation, and aquaculture markets. Our filters are in use in over 70 countries around the world. Every Amiad system is built for efficiency, effectiveness and reliability and is backed by our commitment to excellence and dedication to customer service.

  • Ovivo
    Ovivo

    Ovivo brings together more than 200 years of collected experience, process expertise and proven technologies; but that doesn’t mean that we’re complacent. Over past centuries of growth, development and refinement we have been guided by the principle of delivering value to our clients. Our equipment and technologies already have a reputation for long-term durability and reliability, offering decades of use and leading to lasting relationships with key customers.

  • Filtronics, Inc.
    Filtronics, Inc.

    Filtronics has manufactured water and waste water treatment systems for industrial and municipal applications since 1974

  • De Nora
    De Nora

    De Nora Water Technologies is a leading supplier of water and wastewater treatment solutions. We provide our clients with some of the industry’s brightest minds, advanced technologies, and quality products to provide you with truly efficient, cost-effective solutions to your water and wastewater challenges

  • Shelco Filters
    Shelco Filters

    Manufacture of filter housings and elements|Pleated membrane and high efficiency cartridges|Bag housings and bags

ABOUT DRINKING WATER FILTRATION

 

Water treatment filtration involves the removal of suspended particles from water by passing the water through a filtration medium. As the water passes through the filter, floc, minerals, microorganisms and other impurities get stuck in the filter and are removed from the filtered water. Passage can be blocked by physical obstruction, biological action, adsorption, absorption or a combination of ways. Filtration is usually the final step in the solids removal process during water treatment which typically begins with coagulation and advances through flocculation and sedimentation.  

Unfiltered or turbid water is difficult to disinfect because microorganisms growing on suspended particles are often harder to kill than when they are separated from the particles. Turbidity can also cause unwanted taste and odor issues in the potable water supply. Drinking water filtration is also used to remove microorganisms that are resistant to traditional methods of disinfection such as chlorination. By requiring a low turbidity in finished water, water treatment plants are ensuring that few or no microorganisms such as Giardia are present in finished drinking water.

There are three typical methods of clean water filtration used during the water treatment process. Conventional filtration follows coagulation, flocculation and sedimentation and precedes disinfection. Direct Filtration follows coagulation and flocculation when there is no sedimentation step. The final method called In-Line Filtration takes place without flocculation or sedimentation. A coagulant chemical is added to the water just before filtration and coagulation occurs in the filter. 

 There are many types of filter media being used in today’s water treatment industry.