Ultrafiltration Membranes

Spotlight Name Archive: 
August 2012
Spotlight Header Archive: 
August 2012

Q-SEP hollow-fiber ultrafiltration membranes feature a patented cloud point precipitation process; high-strength hollow-fiber membranes; uniform pore size distribution for consistent water quality; improved filtrate quality; low and consistent SDI; and high bacteria and virus rejection. The membranes are NSF/ANSI Standard 61 certified.

Membrane Antiscalants Maintain RO Output and Efficiency

Publication Date: 
July 9, 2012

In any membrane filtration system, scaling is inevitable. There are many forms of scale, some of the most common being calcium carbonate, calcium sulfate, barium sulfate and strontium sulfate. Left unmanaged, crystal scale will accumulate and become a mass of crystals on the surface of the membrane, causing blockage. This is harmful to reverse osmosis (RO) systems because it increases operating pressure. High pressure can put stress on the system and reduce product output and efficiency levels. A severely scaled membrane easily can reduce its gallon output by more than half.

Company Reference: 

Dow Invests in Water Technology Manufacturing in China

Source: 
Dow Water & Process Solutions
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Dow Water & Process Solutions announces its plans for a new Dow Filmtec reverse osmosis membrane plant at the company’s site in Huzhou, China

The Dow Chemical Co. announced plans to invest in a world-class manufacturing facility for Dow Filmtec reverse osmosis (RO) elements in Huzhou, China. The new facility will be online in 2013.  

Publication Date: 
June 8, 2012

RO Membranes

Vontron’s new line of high-quality reverse osmosis membrane elements includes industrial multi-purpose, seawater desalination, fouling-resistant, oxidation-resistant and residential-type elements. The company is one of the world’s largest manufacturers of high-quality, low-cost, dry-type membranes.

Testing Packages Aid in RO System Design

Publication Date: 
May 23, 2012

When considering reverse osmosis (RO) for water treatment, there are several things that should be taken into account. One of the most important things to consider is the quality of the water to be treated. RO is widely used to remove harmful inorganic contaminants; however, due to the limitations and higher operating cost, pretreatment of the water may be necessary. For example, hardness minerals are common in groundwater, and at high levels, pretreating with a softener is often recommended.

Components

Environmental World Products focuses on component distribution, sourcing and new product development for commercial and industrial water treatment applications. Its product line includes RO system components, such as membrane housings, filter housings, bag housings, filter cartridges, couplings, control valves, flowmeters, solenoid valves, needle valves, controllers/monitors and pressure gauges.

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Test Package

The Complete RO Screen was developed with input from membrane manufacturers and treatment professionals. This package tests for most factors that can reduce the life of an RO membrane. Due to the nature of RO produced water, the testing was designed to provide lower detection levels. This test package is also beneficial for other applications that require pure water. New and improved compact packaging will reduce shipping costs.

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Industrial RO Systems

Company Reference: 

SWI industrial-sized seawater RO systems have capacities ranging from 8,000 to 500,000 gpd. They feature duplex stainless steel multistage high-pressure pumps, FRP membrane housings, 8-in. TFC membranes, a non-corrosive prefilter and an advanced PLC-based control panel with touch screen, all mounted on a powder-coated steel frame that supports all instruments, piping and valves. Custom-made systems are available.
 

Particle Characteristic Advantages in Adsorption Technology

A wide range of research and development is being conducted to solve the challenges of providing clean water, with a significant emphasis on drinking water. The research focus has included advanced membrane technology; changing water chemistry to suit the remediation technology of choice; and media modification for increased selectivity, activity and capacity.

The purpose of this study is to focus on sorptive media modification for improved performance.

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Treatment media advancements through application of nano-science

About The Author: 

James Knoll is Metsorb commercial manager, Nichole Pennisi is research and development chemist and Robert Russo, Ph.D., is media manager for Graver Technologies. Knoll can be reached at 800.249.1990 or by e-mail at jknoll@gravertech.com.

Publication Date: 
June 1, 2010
Activation Date: 
June 1, 2010
Issue Reference: 

Reducing Costs With RO

Today, beverage production facilities make a wide range of products, including carbonated soft drinks, energy drinks, juices, teas and purified drinking water. The number one ingredient in all of these products is water. Naturally, the quality of the water, as well as the operation of the water treatment system, are key to the quality and profitability of the facility.

Deck: 

Ultra-low-energy RO membranes help beverage facilities save energy and costs

About The Author: 

Brian Wise is global product manager, industrial systems, for GE Power & Water. Wise can be reached at brian.wise@ge.com or 952.988.6310.

Publication Date: 
April 24, 2012
Activation Date: 
April 24, 2012
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