DRINKING WATER FILTRATION CASE STUDIES AND WHITE PAPERS

Membrane Treatment Of Groundwater

The groundwater that a southern Louisiana water utility supplies to local residents has traditionally carried a high amount of organic material and color. In the past, the organics were oxidized and broken down by chlorination, but this practice had gone out of favor due to production of disinfection by-products (DBPs) such as Trihalomethanes (THMs) and Haloacidic Acids (HAAs).

Closed Circuit Desalination Technology Provides Steel Manufacturer ROI In Less Than 60 Days

This leading rod and wire mill requires water for cooling steel and tools in its manufacturing process. Water used for cooling becomes contaminated with metals and lubricants and was therefore being disposed of as waste.

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DRINKING WATER FILTRATION PRODUCTS

WATER<I>TRAK</i>&trade; Ultrafiltration

WATERTRAK™ Ultrafiltration

These filtration systems use hollow fiber membranes to remove particulate down to 0.1 micron (SDI normally <1). These systems normally operate at 90-95% recovery and can be offered as dead end or in cross flow configuration.
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.

Aqua UltraFiltration™ Membrane System

Aqua UltraFiltration™ Membrane System

The Aqua UltraFiltration Membrane System offers a compact, T-rack design with multibore strength, high permeability, resistance to fouling, and minimal power/chemical requirements to provide lower O&M costs.

Filtration: Secondary Sewage Filtration - Electromedia® IV

Filtration: Secondary Sewage Filtration - Electromedia® IV

Electromedia IV filters properly treated secondary effluent waters containing suspended and settleable solids in the order of 50 p.p.m
Filtration: Filtomat M100 Series -- Pistonless Model

Filtration: Filtomat M100 Series -- Pistonless Model

Water is filtered through the fine screen to the outlet. The filtration cake is accumulated on the inner surface of the fine screen causing pressure differential to build up
Filtration: Filtomat MCFM Series

Filtration: Filtomat MCFM Series

The MCFM filters remove dirt particles as water flows through the coarse and fine screens to the outlet. The PLC controls the self-cleaning modes required according to the type of dirt and the dirt loads

Robust Ultrafiltration Modules With Up To 91m<sup>2</sup> Membrane Surface Area And Flexible Connection Options

Robust Ultrafiltration Modules With Up To 91m2 Membrane Surface Area And Flexible Connection Options

Liqui-Flux® Water Modules - Economical Reliability in Ultrafiltration

Leopold&reg; Clari-DAF&reg; BWT System

Leopold® Clari-DAF® BWT System

The Leopold® Clari-DAF® BWT (Backwash Water Treatment) system is a proven and highly effective method of treating spent filter backwash water for achieving the safe reuse recovery of as much as 99.7% of filter backwash water volume or returning it to the environment while lowering your total cost of operation.
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DRINKING WATER FILTRATION PODCASTS

Clearing The Air With Activated Carbon

Clearing The Air With Activated Carbon

Think you know activated carbon? The range of capabilities is so robust that operators of all types — drinking water, wastewater, municipal, or industrial — should come to fully understand its usage.

A Sustainable Solution For Treating Contaminants

A Sustainable Solution For Treating Contaminants

There are a number of regulations in drinking water centered around emerging contaminants. Hexavalent chromium is one that you’ll see on the national marketplace.

Chemical-Free AOP Technology

Chemical-Free AOP Technology

Most advanced oxidation processes require chemicals—but not Photo-Cat.

The Many Faces Of Carbon — A Versatile Treatment Solution

The Many Faces Of Carbon — A Versatile Treatment Solution

What concerns drinking water municipalities the most? Is it regulations, emerging contaminants, or a crisp, clear product? To a degree, it’s all of the above. Jim Knepper of Jacobi Carbons explains.

The Growing Market For Membranes

The Growing Market For Membranes

Despite what many think, membrane systems are not complicated to operate, says Todd Hathaway of Kruger Inc.  In an interview with Water Online, Hathaway explains why taking the time to understand the technology is worthwhile.

What’s In An Underdrain? More Than You Might Think

What’s In An Underdrain? More Than You Might Think

Media filtration is employed for a variety of treatment applications — drinking water, wastewater recycle/reuse, and pretreatment for desalination among them — but practitioners may be missing out on a key opportunity for savings.

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DRINKING WATER FILTRATION VIDEOS

About Desalitech: A Company Overview

About Desalitech: A Company Overview

Industry accounts for nearly 60 percent of fresh water withdrawals in the developed world, putting tremendous stress on water resources which will only increase with growth.

ACTIFLO&reg; CARB, Optimal Treatment Of Natural Organic Matter

ACTIFLO® CARB, Optimal Treatment Of Natural Organic Matter

The ACTIFLO® CARB process combines the features and the efficiency of ACTIFLO® with the adsorption qualities of activated carbon to remove compounds that are refractory to water clarification.

Ozone Process Control Cuts Finished Water Cost by Nearly 40 Percent

Ozone Process Control Cuts Finished Water Cost by Nearly 40 Percent

Director Doug Neibauer of the North Burleigh Water Treatment Plant (WTP) in Bismarck, North Dakota talks about precisely matching ozone production to real-time demand.

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DRINKING WATER FILTRATION SUPPLIERS

  • 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

  • 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.

  • Shelco Filters
    Shelco Filters

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

  • Membrana
    Membrana

    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.

  • 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
  • Filtronics, Inc.
    Filtronics, Inc.

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

  • Degremont Technologies
    Degremont Technologies

    Water Treatment Equipment |Wastewater Treatment Equipment |Sludge Management Equipment

  • 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.

  • Severn Trent Services
    Severn Trent Services

    Severn Trent Services 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

  • 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...

  • 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.

  • 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

  • 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
  • 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

  • QUA Group
    QUA Group

    QUA® headquartered in USA, is a developer and manufacturer of leading-edge advanced membrane products used in the water, wastewater, and water reuse markets. Sold exclusively through a global network of qualified OEM's, QUA's product offering includes their innovative Fractional Electrodeionization (FEDI®) stack, which has superior hardness tolerance compared to the other electro-deionization products on the market and their NSF Certified Q-SEP® Ultrafiltration (UF) membranes.

  • 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.

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.