WATER MEMBRANES WHITE PAPERS AND CASE STUDIES

From Raw Lake Water To Excellent Filtrate Quality Suitable For Drinking Water
From Raw Lake Water To Excellent Filtrate Quality Suitable For Drinking Water

CH2M contacted Toray Membrane USA with an invitation to pilot our pressurized TIPS hollow fiber UF membrane module for the City of Sherman Texas 10 MGD Expansion Project. This document summarizes the findings of this pilot study program.

Ultrafiltration Stormwater Recovery System At Cincinnati Zoo Reaches Optimal Performance
Ultrafiltration Stormwater Recovery System At Cincinnati Zoo Reaches Optimal Performance

The Cincinnati Zoo uses an ultrafiltration system (UF) to treat stormwater. The reclaimed water is collected from 14 acres of the park, including parking lots, animal exhibit yards, rooftop drains, and walking path storm drains

More Water Membranes White Papers and Case Studies

WATER MEMBRANES PRODUCTS

CSM Nanofiltration Membrane Elements CSM Nanofiltration Membrane Elements

CSM NF membranes selectively removes divalent and monovalent ions, making it ideal for a wide range of applications. Typical uses include production of food & beverage, dye recovery, and water softening and removal of specific impurities (i.e. color, DBP, THM) for potable use. CSM NF Membranes are constructed with either a polyamide or piperazine thin-film layer, and are available in various sizes. Inquire within for custom-engineered solutions.

Microfiber SureSeal Cartridges Microfiber SureSeal Cartridges

Harmsco microfiber cartridges are designed specifically for filter housings that utilize 4-1/2” O.D. high flow cartridges.

Microfiber Cartridges Microfiber Cartridges

Harmsco microfiber cartridges are designed for filter housings that utilize 2-1/2”, 2-3/4”, and 7-3/4” O.D. high flow cartridges.

Seawater Reverse Osmosis Elements Seawater Reverse Osmosis Elements

Following 4”, 8” and 16” membranes can be used in multiple membrane systems to treat sea water or high salinity water > 10’000 ppm. The 4” membrane types can be used for small private or shipboard sea water desalination.

TorayFil UF Modules TorayFil UF Modules

Toray's PVDF hollow fiber membrane module effectively removes suspended solids and microorganisms such as pathogens, when used for various types of water treatment. This innovative membrane module was developed with polymer science and the membrane fabrication technologies accumulated in Toray Industries, Inc. for more than 30 years.

Brackish Reverse Osmosis Elements Brackish Reverse Osmosis Elements

With over 40 years of experience in RO membrane innovation, TORAY has developed a new product range of the widely successful low pressure BWRO elements, offering higher durability and better performance than ever before. The new element series outperforms a leading competitor in key test benchmarks, making it the product of choice for low energy brackish water RO processing.

More Water Membranes Products

WATER MEMBRANES PODCASTS

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.”

Membrane Systems For Dirty Water Membrane Systems For Dirty Water

One of the leading water technology companies, Dow Water and Process Solutions, is pioneering ways to improve our water supply — by making the dirtiest waters clean again.

How Do You Build A Heavier Floc And Let It Sink And Settle Faster? How Do You Build A Heavier Floc And Let It Sink And Settle Faster?

That’s a question that Jim Georger, regional sales manager with Kruger, a division of Veolia, discussed with Water Online Radio recently.

Introducing The Ultimate In Ultrafiltration Introducing The Ultimate In Ultrafiltration

Evoqua Water Technologies spoke to Water Online Radio about its ambitions to become synonymous with ultrafiltration and the two innovations that may do just that.

Chemical-Free AOP Technology Chemical-Free AOP Technology

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

The Future Of Water: Reuse, Energy-Efficient Technologies On The Horizon The Future Of Water: Reuse, Energy-Efficient Technologies On The Horizon

The U.S. should be paying attention to innovation happening in the water space worldwide, says Ryan Spanton of WesTech, in an interview with Water Online Radio.

More Water Membranes Podcasts

WATER MEMBRANES VIDEOS

SEPAREL® PF Series SEPAREL® PF Series

The SEPAREL PF series removes dissolved gases in water through a tube-shaped gas permeable membrane composed of polytetrafluoroethylene (PTFE). Gasses dissolved in water flow through the tube and are removed due to the pressure difference of the gases inside and outside of the tube, thus creating a vacuum outside of the tube. This video explains how the PF series works.

SEPAREL® EF Series SEPAREL® EF Series

The SEPAREL EF series uses external flow which allows water to randomly flow over the hollow fibers and, in turn, contact dissolved gases more frequently. Therefore, desgassing performance with the EF series is higher than the PF series which utilizes internal flow. Also, a lower pressure drop means that larger modules can be used. This video explains how the EF series works.

Small SEPAREL® EF Series Small SEPAREL® EF Series

The small SEPAREL EF series is optimized to remove dissolved gases in water applications with smaller flow rates. The EF series uses external flow which allows water to randomly flow over the hollow fibers and, in turn, contact dissolved gases more frequently. Therefore, desgassing performance with the EF series is higher than the PF series which utilizes internal flow. This video explains how the EF series works.

SEPAREL® Hollow Fiber Membrane Modules For Liquid Degasification And Aeration SEPAREL® Hollow Fiber Membrane Modules For Liquid Degasification And Aeration

A proprietary technology of the DIC Corporation, SEPAREL hollow fiber membrane modules are optimized for degassing and aerating water. By utilizing an innovative surface skin layer, only gas can permeate in or out of the membrane. This video introduces the benefits of SEPAREL and where is it most commonly used.

TETRA&reg LP Blocks™: Dual Parallel Lateral Clean Water Filter Floor TETRA® LP Blocks™: Dual Parallel Lateral Clean Water Filter Floor

The TETRA LP Block dual parallel lateral underdrain system delivers distribution of air and water during backwashing to enhance filter cleaning and extend run times. TETRA LP Blocks were developed to overcome problems with air/water distribution experienced with other systems.

TETRA® Wastewater Filtration TETRA® Wastewater Filtration

De Nora is a global leader in water and wastewater treatment solutions, with more than 90 offices worldwide and $600 million turnover, and state-of-the-art filtration, disinfection and instrumentation technologies.

More Water Membranes Videos

WATER MEMBRANES NEWS

More Water Membranes News

WATER MEMBRANES

 

Water membranes are widely used in the water treatment processes. They have become a fundamental player in separation technology because of the fact that they require no additional chemicals and their relatively low energy requirements.

Water membranes have been applied during the extraction of produced water, treatment of waste/sewage water and processing of surface water all with huge success levels. Conventional water treatment techniques are over time incorporating in their processes the use on water membranes. Commercialization of membranes was first done in the 1970s and 1980s.

Membrane technology is chiefly based on the presence of pores on the membranes that make them semi-permeable. The simple principle on which water membranes work is such that the semi-permeability of water membranes ensures that only water is allowed to pass through a specific membrane while trapping unwanted particles and substances.

In both microfiltration and ultra filtration, membranes provide an effective barrier for arresting suspended solids in water.

To aid substances to penetrate across a semi-permeable membrane the following steps are undertaken: Electric potential introduction, high pressure application and ensuring that the concentration gradient on both sides of the membrane is maintained. The surface area of the membrane also determines the efficiency of the membrane in use.

The only drawback on water membranes is that they cannot remove substances that are actually dissolved in the water such as phosphorus, nitrates and heavy metal ions. The following are categories of membranes: Microfiltration (MF), Ultra filtration (UF), Reverse osmosis (RO), and Nanofiltration (NF) membranes

Ultra filtration membranes employ polymer technology with chemically created microscopic pores that trap dissolved substances therefore eliminating the possible use of any coagulants.