Products In Action

Microfiltration, Nanofiltration Help Meet EPA Standards at Lake
Mead

About The Author: 

For additional information, contact The Dow Chemical Company at
517-636-9086.

Activation Date: 
November 21, 2001
Legacy
Legacy ID: 
12776

Process Effectively Strips Hydrogen Sulfide Gas From Wastewater

Hydrogen sulfide is a common component in wastewater treatment plant off-gases (e.g., biogas) and waste gases from certain industrial processes. It is highly toxic and odorous. Therefore, its release into the atmosphere is regulated. In addition, it is very corrosive, which can result in costly damage to equipment and piping systems used in biogas handling. Several technologies exist for removing H2S from gas streams, but many suffer from drawbacks such as insufficient removals, complexity or high cost.

Publication Date: 
November 13, 2001
Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12770

Advanced Treatment for Groundwater: Treating Low-Quality Groundwater for Municipal Use

Groundwater sources that can be used for drinking water purposes are requiring increasing degrees of treatment to meet the requirements of both the regulating agencies and the consumer.

Deck: 

Disinfection

About The Author: 

Ralph Gelvin, P.E., is a senior engineer with Burns & McDonnell.
Don Novak, P.E., is a project manager with Burns & McDonnell.

Activation Date: 
November 13, 2001
Legacy
Legacy ID: 
12769

Water and Air UV Treatment

UV is an accepted and rapidly growing technology for treating wastewater in the United States. In Europe, it commonly is used as a primary disinfectant in municipal drinking water systems. Other applications include food and beverage, pharmaceutical, semiconductor and power generation. This article will discuss three other commercially successful and growing applications.

Deck: 

Successful Ultraviolet for Commercial Applications

About The Author: 

Bak Srikanth is manager of applications and project proposals at Aquafine Corp. He has been with Aquafine since 1994, where he previously was senior applications engineer. He manages all applications engineering, process R&D and capital project proposal functions. He has several years of work experience in the water treatment and purification industry. He may be reached at 800-423-3015, ext. 651; Bak@AquafineUV.com.
David Witham is vice president of new technology at UltraViolet Devices, Inc. where he has been since 1996. Previously, he was director of engineering. He is responsible for developing UV technology, intellectual property and new business opportunities. Witham has spent a large portion of the last three years in developing the application of UV in indoor air as well as special water applications and the development of modeling and software to assist in UV dosing and system design. He may be reached at 661-295-8140; davew@uvdi.com.

Activation Date: 
November 9, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12760

POU Options for Arsenic

The topic of arsenic has received a lot of press coverage this year, ever since the Bush administration halted the EPA’s newly issued maximum contaminant level (MCL) of 10 parts per billion (ppb). Since then, the MCL was reinstated back to 50 ppb and further discussions and studies have continued. This article will discuss some of these updates.

Deck: 

How to Select from Available Treatment Options

About The Author: 

Contributed by Apyron Technologies.

Activation Date: 
November 9, 2001
Issue Reference: 
Legacy
Legacy ID: 
12759

Pure Water the Way It Was Meant to Be

As the public becomes more health conscious and educated about water contamination, demand for bottled water continues to increase. In order to provide purified water, it is important to understand the reverse osmosis (RO) water purification process.

Deck: 

Pretreatment is the first step in a reverse osmosis system for high quality water.

About The Author: 

Michael Pennington serves as a filtration marketing manager for Severn Trent Services, Inc., a supplier of water and wastewater treatment solutions. The Filtration division of the Water Purification Solutions Group consists of UAT membrane systems and bottling equipment lines, adsorption, evaporation, municipal treatment technologies and other unit operations. Additional information is available at www.severntrentservices.com or www.universalaqua.com.

Activation Date: 
November 9, 2001
Files: 
Issue Reference: 
Legacy
Legacy ID: 
12757

Judicial Equities Override Filtration Requirement

A recent federal court decision may have created an opportunity for relief from United States Environmental Protection Agency (EPA) rules that impose costs that substantially exceed benefits.

Deck: 

October 2001 Legal Stream

About The Author: 

Dan Kucera is a partner in the law firm of Chapman and Cutler, 111 W. Monroe St., Chicago, Illinois 60603–4080, (312) 845–3000.

Activation Date: 
October 19, 2001
Legacy
Legacy ID: 
12704

Q&A: Polymeric Membrane Filtration

The following interview is with Robert Huehmer, who currently is process manager with USFilter?s (a Vivendi Water company) Memcor, Microfloc and General Filter products division, located in Timonium, Md.

Deck: 

The when, where and how treatment is applied.

About The Author: 

Wendi Hope King is editor of Water Quality Products magazine

Activation Date: 
October 12, 2001
Legacy
Legacy ID: 
12696

Belt Filter Presses: Still a Cost-Effective Solution - Myth or Reality?

When faced with upgrading or searching for alternative methods, the staff of one facility had to determine if their belt filter presses were still a cost-effective solution for their solids dewatering process.

Deck: 

Solids Handling

About The Author: 

Glenn Curtis is the chief pollution control operator of the Monroe County Department of Environmental Service, N.Y. He has more than 28 years of experience.

Activation Date: 
September 21, 2001
Legacy
Legacy ID: 
12651

Editorial Emphasis: Wastewater Treatment

 

 

 

 

 

Deck: 

Exfiltration system uses distribution chambers to protect sensitive Lake Erie

About The Author: 

For more information, contact Infiltrator Systems Inc. at 800.221.4436.

Publication Date: 
September 20, 2001
Activation Date: 
September 20, 2001
Legacy
Legacy ID: 
12642