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:::::::::::Issue 12, January 2006 :::::::::::
Welcome
to Water & Wastewater Solutions
Hello, and welcome to Water & Wastewater Solutions, the e-newsletter
designed to keep you current on the latest advances in water and wastewater purification products
and services. Published by Severn Trent Services, this newsletter is designed to provide you with
expert industry information and links to more details – ranging from new technologies to new
industry regulations – on our Web site.
Have a topic suggestion for Water & Wastewater Solutions?
We welcome your feedback.
E–mail us at info@severntrentservices.com.
Tertiary Treatment of Wastewater for Reuse in China
China has water shortage problems, especially in its northern region. The accelerated industrialization in the country further compounds the issue. A drastic and costly corrective measure is the South-North Water Diversion Project, which will transfer 40 billion m3/year of water from the south to the north. But other, less dramatic and less expensive abatement measures also are being utilized.
Click on the link below to learn how the increased use of water pollution control, wastewater recycling and reuse, and water usage minimization are solving this giant country's water problems.
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Testing Method Enables Rapid Scale-up for Arsenic Treatment Systems
Water systems that are affected with arsenic contamination are looking to implement treatment solutions to meet more stringent federal standards. However, before a full-scale treatment system can be installed, its performance must be verified through laboratory or field pilot testing.
The development of rapid small-scale column testing (RSSCT) has helped to substantially resolve the limitations of time-consuming laboratory and field pilot testing. To find out more about this time-saving testing method, click on the link below
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Evaluating Booster Chloramination as an Alternative to Breakpoint Chlorination in Reservoir Management
By Charlotte D. Smith, Charlotte Smith & Associates, Inc.
The Alameda County Water District operates and maintains the Alameda Reservoir, a 15 MG finished water storage facility located in Fremont, California. The reservoir experienced loss of disinfectant residual as a result of nitrification. Fluctuations in the nitrite levels resulted from actions taken by the District to control nitrification: specifically, breakpoint chlorination.
To learn more about how the District sought to eliminate nitrification and maintain a 2.0 mg/L combined chlorine residual within the entire reservoir, read on.
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City of Glen Cove, N.Y. Providing Environmental Leadership in Nitrogen Removal
When the City of Glen Cove, N.Y. contracted operations of its wastewater treatment facility in 1992, they did so as a means of obtaining technical and operational excellence beyond the scope of their internal capability. Plagued by odor complaints from a local open-air restaurant, the City and its private partner invested more than $3 million in capital improvements to update the facility over the first two years of the then-unprecedented 20-year contract.
What has happened recently? To date, the City of Glen Cove has reduced its effluent nitrogen levels 74 percent, a far greater reduction than that required by federal mandate — in 2014.
To find out more about the success of this public-private partnership, click on the link below.
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