Purification Facilities Will Protect City's Water Supply

New water purification facilities constructed by J.S. Alberici Construction Co., Inc., in Milwaukee, Wisconsin, will ensure the safety of the city's water supply.

Deck: 

Products at Work

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11176

Generating Chlorine Dioxide Gas: Chlorate vs. Chlorite

This paper evaluates the effectiveness of generating chlorine dioxide gas using Eka Chemical's method of sodium chlorate/hydrogen peroxide/sulfuric acid technology as it compares to the Rio Linda (Vulcan) chlorine gas/25 percent sodium chlorite system process at the El Paso Water Utilities' 40 mgd Canal (Umbenhauer/ Robertson) Water Plant in El Paso, Texas.

Deck: 

Is a new method of generating chlorine dioxide gas using sodium chlorate more effective than the typical sodium chlorite system?

About The Author: 

Douglas Rittmann, P.E., is water systems division manager for El Paso Water Utilities and a doctoral candidate in the Environmental Science & Engineering program at the University of Texas at El Paso.
Joel Tinney is senior applications engineer for Eka Chemicals.

Publication Date: 
December 28, 2000
Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11177

Calcium Hypochlorite Chlorinating System Reduces Microbial Growth

ADM Milling Co./Nokomis Mill is a grain milling company that produces flour for regional bread manufacturers. Located in Minneapolis, ASM produces 10,000 cwt., or one million pounds of flour a day. Their use of chlorinated water results in the treatment of 1.2 to 3.5 gallons of water per minute.


ADM Milling relies on chlorinated water in the tempering process of grain milling production. In short, the tempering process cleans the wheat to rid it of dirt and debris, toughens the outer layer of the wheat kernal, and softens the inside - or the part ADM harvests and turns into flour.

Deck: 

Problem Solvers

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11154

Ozonation System Tested in Anticipation of Disinfection By-Product Rule

In order to comply with more stringent government regulations, one plant converted from chlorine to ozone treatment.

Deck: 

Alternative Treatment

About The Author: 

Aubrey LaFargue is corporate manager for Professional Services Group, Inc., Houston, Texas, currently serving at the City of Newark's Pequannock Water Treatment Plant.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11084

How to Sanitize a Well in 10 Easy Steps

It is important to sanitize a well twice a year whether it is a new well or an existing well

Activation Date: 
December 28, 2000
Issue Reference: 
Legacy
Legacy ID: 
11098

Automated Chlorination System Helps Chicken Processing Plant Meet U.S.D.A. Sanitation Guidelines

A California-based chicken processing plant needed an accurate, reliable method of maintaining high chlorine residuals in their sanitizing and cooling water tanks, known in the industry as "red water." This name comes from the content of blood and guts in the water. Although to the naked eye the water looks relatively free of these gory contents, it represented a chlorination control nightmare to the plant operators.


The tanks are about 4 ft. X 10 ft. X 40 ft. and contain approximately 100,000 gallons of chilled, chlorinated water at around 33°F.

Deck: 

Problem Solvers

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
11055

Media is a Big Thing ... But Not the Only Thing

Shower filter dechlorination requires its own unique design approach to meet various health requirements.In less than 10 years, shower filters have grown from a non-industry to a significant niche market. Consumers, at first only concerned with the quality of their drinking water, are now more aware of the importance of removing chlorine, one of nature's most toxic elements, from their shower water, too.

Deck: 

The many considerations in shower filter design

About The Author: 

George Ricci, president of Pacific Environmental Marketing & Development Company, San Gabriel, California, is the designer of the Rainshow'r ® non-carbon shower filter and Gard'nGro garden filter. He began his career in the filtration industry in 1987 and was the creator of the first non-carbon shower filter brought to market. Ricci founded Pacific Environmental in 1989 to design and manufacture a broad line of shower and garden dechlorination
devices.

Publication Date: 
December 28, 2000
Activation Date: 
December 28, 2000
Issue Reference: 
Legacy
Legacy ID: 
10886

Filter Process Removes Cryptosporidial Oocysts From Water Supplies

A backwashable depth filter process removes and destroys these microorganisms with great efficiency.

About The Author: 

James A. Bell, P.E., is the vice-president of technical services at Smith & Loveless, Inc., a manufacturer of water treatment equipment in Lenexa, Kan.

Dr. Graeme K. Pearce is the technical director of Kalsep Ltd. of the United Kingdom.

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10811

Ozone, Direct Filtration System Performance Prove Technology's Value

A three-year test of ozone and direct filtration so convinced the Altoona City Authority (ACA) of its merits that the central Pennsylvania water authority is now installing the technology at six new treatment plants and will retrofit another by 1999.

Deck: 

Products at Work

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10636

Cryptosporidium and Giardia Inactivation Device

A new water disinfection system has been developed to inactivate Cryptosporidium oocysts and Giardia cysts in drinking water. The technology, known as the CID, inactivates these pathogenic waterborne microorganisms using enhanced ultraviolet (UV) irradiation technology without filtrate disposal, chemical addition or related hazardous by-products.

Deck: 

Machine Description and Full Scale Test Results

Activation Date: 
December 28, 2000
Legacy
Legacy ID: 
10522