Membrane Filtration for Water and Wastewater

Membrane filtration, widely used in chemical and biotechnology processes, is already established as a valuable means of filtering and cleaning wastewater and industrial process water.

Activation Date: 
December 28, 2000
Issue Reference: 
Legacy
Legacy ID: 
11283

Shoring Up Future Water Supplies with RO Sea Water Plants

As competition for limited water supplies increases, sea water treated by reverse osmosis will become more viable.

Deck: 

Reverse Osmosis

About The Author: 

Alan Smith is the general chairman of the International Water Conference. The 1998 International Water Conference will be held October 19-21, 1998 in Pittsburgh. For a complete program listing and registration information, please contact IWC Conference Manager Ruth Gregg at e-mail: conf@eswp.com; phone: 412-261-0710 ext. 11; or fax: 412-261-1606.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11203

Reverse Osmosis Used to Purify and De-nitrify Water in a Municipal Plant

Culligan International Company has been providing services to small municipalities since the 1970s, but in February of 1997 the company signed a $1.9 million contract with the city of Abilene, Kansas, to remove nitrates from the city's water system.


The overall cost of the project was estimated at $6 million. This marked the largest domestic municipal project for Culligan and led to the creation of a municipal markets division within the company.


Fertilizers used in this farming area raised nitrate levels in the water beyond those allowed by state law.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11079

Advanced Water Treatment Technologies May Bring Repurified Water to San Diego

"In four years, half of San Diego may be filling its glasses with tap water that once ran through its toilets."

About The Author: 

This article was written by Inge Bisconer of Osmonics Desal, Vista, California. Osmonics Desal is a leading manufacturer of spiral wound reverse osmosis, nanofiltration, ultrafiltration and microfiltration membranes for the residential, commercial, institutional and industrial marketplaces.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11044

Microfiltration: How Does it Compare ?

Increased focus on technologies that meet tighter regulatory requirements and increased public pressure has motivated municipalities to take a serious look at microfiltration (MF) membranes as a viable treatment option. This article is intended to familiarize you with the basics of microfiltration and discuss how it compares to conventional alternatives

About The Author: 

Thomas Muilenberg is an applications engineer specializing in the area of membrane systems with General Filter Company, a manufacturer of water and wastewater process equipment for municipal and industrial applications.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10467

Membrane Applications in Water Plants

Faced with upgrading aging facilities, a Florida water utility decided to incorporate reverse osmosis.

Deck: 

System Profile

About The Author: 

Ian Lisk is Editorial Director of Water Engineering & Management and Water & Wastes Digest. Significant input to this article was provided by staff at Metcalf & Eddy's Sunrise, Florida office, and at the City of Plantation, Florida.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10221

Membrane Specialists Gather for International Conference

The latest on membrane technology for water treatment.Membrane system technology has been developed to a point where one or more of its forms can be applied to extract most of the contaminants of concern found in many raw water sources. Recognizing the importance of the latest findings to the drinking water supply community, the International Water Supply Association recently conducted a conference on the subject in Paris, France.

Deck: 

Membrane technology

About The Author: 

Ian Lisk is editorial director of Water Engineering & Management and Water & Wastes Digest.

Publication Date: 
December 28, 2000
Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10210

The Biological Activated Carbon Process for Water Purification

The biologically enhanced carbon process is an option for many water utilities.

Deck: 

Water Treatment

About The Author: 

Bertrand W. Dussert is a technology specialist with Calgon Carbon Corporation. Gary R. Van Stone is business director with the same company, which is located in Pittsburgh, Pennsylvania.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10180