Roundtable Discussion: E. coli (Escherichia coli)

Escherichia coli, a.k.a. E. coli. A terrible, but familiar word to the public suggests sewage or animal waste contamination. E.

Deck: 

Recent outbreaks of E. coli have brought consumer’s attention to their drinking water. Understanding its source, regulations and prevention will be key to combating this waterborne illness

About The Author: 

Wendi Hope King is the editor of Water Quality Products magazine.

Publication Date: 
December 28, 2000
Activation Date: 
December 28, 2000
Issue Reference: 
Legacy
Legacy ID: 
11900

Water Reuse for Drought-proof Industrial Water Supply in San Diego

A 200,000 gallon per day (gpd) advanced microfiltration system treats secondary wastewater effluent for reuse as process water for Toppan Electronics, Inc. in San Diego, Calif.

About The Author: 

For further information, contact Pall Corporation, Port Washington, NY
Phone 516-484-3600
www.pall.com/water

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11897

Pennsylvania Filtration Plant Helps Meet NPDES Discharge Requirements

In the early 1990s, the Milford-Trumbauersville Area Sewer Authority in Bucks County, Pennsylvania, recognized the need to upgrade the existing sewage treatment plant. This was necessary to increase capacity and to meet future more stringent requirements set by the Pennsylvania Department of Environmental Protection for Unami Creek.

About The Author: 

For further information, contact USFilter Davco Products, Sturbridge, MA — Phone 800-347-1202 — www.water.usfilter.com

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11868

In-Home Systems: Utilizing RO and NF Elements

Innovations in membrane technology, which has been used in major industries and hospitals, are driving the industry into the home.

Activation Date: 
December 28, 2000
Issue Reference: 
Legacy
Legacy ID: 
11862

Well Water Treatment: Ozone Helps Solve Water Problems at Bassi Ranch

An analysis of the raw well water (Table 1) shows a pH of 7.9 and 30 color units with >20 mg/L hydrogen sulfide, 5.6 mg/L iron and 0.6 mg/L manganese. Odor was detected at 10 threshold odor number (TON), indicative of the high hydrogen sulfide levels. To meet these water problems head-on, the homeowners formed the Bassi Ranch Mutual Water Co. in 1992.

About The Author: 

Ted Rich has been the director of marketing for ClearWater Tech LLC of San Luis Obispo, Calif., since 1992. The company manufacturers a complete line of mid-sized ozone generators for a variety of water treatment applications. For more information, visit the ClearWater Tech website at www.cwtozone.com; 800-262-0203; cwt@cwtozone.com

Activation Date: 
December 28, 2000
Issue Reference: 
Legacy
Legacy ID: 
11830

Membrane Filtration As an Alternative: Part 2

Part one of this article appeared in the July issue and discussed microfiltration and utrafiltration. This article discusses nanofiltration and reverse osmosis.

About The Author: 

Dr. Mohamed Lahlou is the technical assistance specialist for the National Drinking Water Clearinghouse. This article originally appeared as a tech brief for the NDWC.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11813

Membrane Filtration as an Alternative: Part 1

Once considered a viable technology only for desalination, membrane processes are increasingly employed for removal of bacteria and other microorganisms, particulate material and natural organic material that can impart color, tastes and odors to the water.

About The Author: 

Dr. Mohamed Lahlou is the technical assistance specialist for the National Drinking Water Clearinghouse. This article originally appeared as a tech brief for the NDWC.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11775

Legionella: Minimizing Risks

Legionellosis, the disease caused by Legionella spc., is common, though most people would guess it is extremely rare. Outbreaks of Legionellosis, defined as a cluster of three or more cases in a single locale, occur regularly in the United States and much of the developed world. Outbreaks have been reported in Australia, Holland, Thailand, Japan, England and many other countries. In the U.S., the Center for Disease Control (CDC) receives reports of 1,000 cases of Legionellosis annually.

About The Author: 

W. Craig Meyer is a professor of environmental sciences at Pierce College, Woodland Hills, California.

Publication Date: 
December 28, 2000
Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11799

Precision Tubing Ensures Purity of Water Filtration System

In today's laboratory environment, it is essential that pure water is available for numerous applications.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11737

New Arsenic Treatment Technology Tested in India

A new low cost technology for purifying arsenic contaminated groundwater assists the government of India in removing this slow but steady assassin from their midst.

Deck: 

System requires no electricity, treats 1,000 liters per day in West Bengal

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11700