DRINKING WATER FILTRATION CASE STUDIES AND WHITE PAPERS

Oxelia™ Integrated Ozone Enhanced Biofilration Is Propelling Potable Reuse Projects Forward
Oxelia™ Integrated Ozone Enhanced Biofilration Is Propelling Potable Reuse Projects Forward

Potable Water professionals are seeking innovative approaches to address water supply challenges associated with population growth, drought, and environmental protection.

Retrofit Membrane System Treats High Turbidity Water
Retrofit Membrane System Treats High Turbidity Water

The City of Wilmington, Delaware is situated where the Christina River and the Brandywine Creek flow into the Delaware River.

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DRINKING WATER FILTRATION PRODUCTS

PFOA And PFOS Remediation PFOA And PFOS Remediation

Perfluoroalkyl Compounds: Perfluorooctane Sulfonic Acid (PFOS) and Perfluorooctanoic Acid (PFOA) Treatment.

Vortisand For Membrane Pretreament: Not Just Protection! Vortisand For Membrane Pretreament: Not Just Protection!

Neptune Benson’s Vortisand is a high performance automatic backwashable cross-flow microsand filtration system that filters down to the submicron level; 10 to 50 times finer than other media filters. Vortisand combines a cross-flow condition and sand filtration in the same vessel to achieve high performance filtration results both in pre and post membrane applications.

DuoSphere™ Biogas Storage DuoSphere™ Biogas Storage

Over the years, WesTech has supplied our customers with anaerobic digestion equipment that has added value to their plant operations. WesTech continues to provide valuable solutions with the DuoSphere™ Dual Membrane Gasholder.

UltraDynamics® Municipal UV Solutions Ground Water UltraDynamics® Municipal UV Solutions Ground Water

The advantages which have made ultraviolet irradiation an effective, and the fastest growing, disinfection technology for wastewater are now available for primary disinfection of municipal drinking water.

Process Automation Process Automation

Festo is a leading global manufacturer of automation technology including systems, components, and controls for process control and factory automation solutions.

TurboStat™ Sidehill Static Screen TurboStat™ Sidehill Static Screen

The TurboStat sidehill static screen is one of the simplest and most economical methods for solids separation. All units feature a stainless steel wedge wire filtration surface. The working principle is based on a liquid current circulating over the screen's curved surface.

FiberFlex Flexible Ultrafiltration Rack FiberFlex Flexible Ultrafiltration Rack

Want to shift the process of changing module suppliers from complicated and time-consuming to easily-managed and economical?

Forty-X™ Disc Filter Forty-X™ Disc Filter

The Forty-X™ disc filter from Evoqua Water Technologies is the ultimate barrier in tertiary filtration. It captures more solids in a smaller footprint with a pleated media design and has evolved to incorporate X-tra's that are important in woven cloth media filtration

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DRINKING WATER FILTRATION PODCASTS

Helping Chlorine Out During The Disinfection Process Helping Chlorine Out During The Disinfection Process

If you’re still unfamiliar with the name De Nora, it’s time to get acquainted. Traditionally a supplier of plates for electrolytic industries, the company purchased Severn Trent’s equipment business in 2015 and is investing in its core business of disinfection and filtration.

Ceramic Membrane Durability Attracts Attention Ceramic Membrane Durability Attracts Attention

Aqua-Aerobic recently merged with METAWATER USA, introducing the latter’s ozone and ceramic membrane technologies to the United States market. In this Water Online Radio interview, Dave Holland, Senior Applications Engineer with Aqua-Aerobic Systems, discusses the benefits of the new membrane, which he describes as “virtually unbreakable.”

Upgrading Filtration In Your Water Treatment Plant Upgrading Filtration In Your Water Treatment Plant

As utilities grapple to do more with less, many manufacturers are creating novel retrofit products that can work within the current footprint of a treatment facility.

Biological Filtration For Drinking Water Treatment Takes Off Biological Filtration For Drinking Water Treatment Takes Off

Biottta is a relatively new biological filtration process for drinking water treatment, addressing nitrates, perchlorates, chromium-6 and a number of VOCs as well. In this Water Online Radio interview, AdEdge Water Technologies’ Chad Miller and Rich Cavagnaro discuss its emergence in the water treatment market and some of the specific contaminants it addresses.

Activated Carbon And Ion Exchange Resins Compared Activated Carbon And Ion Exchange Resins Compared

Andy McClure and Jim Knepper of Jacobi Carbon recently sat down with Water Online Radio to discuss the differences between activated carbon and ion exchange resins as mediums for water purification. The interview covered recent developments such as the lowering of the EPA’s health advisory level for perflourinated compounds and cyanotoxins from algal blooms to the more traditional concerns of taste, odor, disinfection byproducts and TOC reduction.

Coconut Shell Activated Carbon For Removing PFOA And PFOS Coconut Shell Activated Carbon For Removing PFOA And PFOS

Coconut shell activated carbon is typically used for filtration in cleaner waters. Its alternatives are coal-based or wood-based carbon. With the recently published EPA guidelines on perfluorinated compounds, Water Online Radio sat down with Neal Megonnell, Senior Vice President for Haycarb USA, to understand coconut shell activated carbon’s application in fighting PFOA and PFOS.

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DRINKING WATER FILTRATION VIDEOS

SEPAREL PF Series SEPAREL PF Series

The PF-F degasification mechanism removes gases dissolved in liquids through a tube-shaped gas-permeable membrane made of polytetrafluoroethylene (PTFE). Specifically, gases dissolved in the liquid flowing through the tube are removed by the pressure difference of the gases inside and outside of the tube created by a vacuum on the outside of the tube as shown in the diagram below. Watch this video to see how the process works.

SEPAREL EF Series SEPAREL EF Series

Because liquid randomly flows over the hollow fibers during external perfusion, dissolved gasses touch the membrane more frequently. Therefore, degasification performance is higher than in the Internal Perfusion Series (PF Series). Also, a lower pressure drop means that larger modules can be used. Watch this video to see how the process works.

SEPAREL EF Series (Small) SEPAREL EF Series (Small)

Used to remove oxygen and carbon dioxide from ultrapure water. Watch this video to see how the process works.

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DRINKING WATER FILTRATION SUPPLIERS

  • SUEZ
    SUEZ

    Water Treatment Equipment |Wastewater Treatment Equipment |Sludge Management Equipment

  • 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.

  • 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.

  • 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
  • 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

  • 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

  • Amiad Water Systems
    Amiad Water Systems Leading supplier of automatic, self-cleaning filters, valves and accessories for municipal and industrial applications|Cost effective pre-filtration solution for membrane protection including surface water applications for RO, UV, UF and effluent water|Provide filtration degrees from 3 - 3500 microns and service any flow rate needed
  • Eco-Tec Inc.
    Eco-Tec Inc.

    Eco-Tec Inc. engineers, designs, manufacturers and distributes from Pickering, near Toronto, Canada. Customer service and technical support provide treatability studies, installation service, on-site supervision and operator training...

  • Filtronics, Inc.
    Filtronics, Inc.

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

  • 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.

  • De Nora Water Technologies
    De Nora Water Technologies

    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

  • 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.

  • 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

  • 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.

  • 3M Industrial Business Group | Membranes Business Unit
    3M Industrial Business Group | Membranes Business Unit

    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.

  • 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.