Water and Wastes Digest Archive


May 2010
This year’s American Water Works Assn. (AWWA) Conference & Expo (ACE10) will host more than 500 exhibitors and feature 1,000 industry expert speakers against the backdrop of the third-largest city in the U.S.—Chicago. ACE10, taking place June 20 to...
Caitlin Cunningham: The Jardine Water Purification Plant (JWPP), the world’s largest conventional treatment plant and an AWWA ACE10 facility tour host, has been serving the city of Chicago since 1964. How has the plant evolved over its lifetime? John F....
The devastation and destruction caused by Hurricane Katrina in 2005 has forever impacted the Gulf Coast. Katrina was what one might call a generational impact event. For an entire generation of people living in the Gulf Coast Region of the U.S., this...
Personally visiting more than 8,400 water meters several times a year proved to be a time-consuming and expensive practice for Watertown, Wis., a city located midway between Milwaukee and Madison. Having employees “walk the beat” every day was the only...
State-of-the-art is one thing—affording state-of-the-art is another, especially in the water markets where budgets are tight. Interestingly, however, some technologies have been around so long and been developed so thoroughly that state-of-the-art can...
Beverage in a modern sense now incorporates many new technologies that have advanced the art well beyond basic techniques of squeezing, crushing, evaporation and fermentation, for example. Today’s technology tool kit includes techniques such as...
Separation of aeration and mixing in a continuously sequencing reactorThe continuously sequencing reactor (CSR) is a process modification of a continuous-flow, complete-mix activated sludge system. With the CSR, air is operated intermittently to allow...
The village of Bald Head Island is a picturesque island community located off the mouth of the Cape Fear River in coastal North Carolina. The village is renowned for its views and slow pace of life—no cars are allowed on the island, and access is only by...
Infrastructure upgrades are expensive, and money is tight for many cities: Mike Sudman knows this. So as superintendent of water and distribution for the city of Celina, Ohio, he often asks permission to upgrade old ductile water lines that are adjacent...
In 2003, the city of Fillmore, Calif.’s wastewater plant was in dire straits. It was discharging wastewater effluent into the Santa Clara River, yet more stringent regulations set by the Los Angeles Regional Water Quality Control Board soon found the...

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