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The true toxicity of combined pollutants in freshwater
Aquatic organisms are exposed to many stressors, including a variety of pollutants from human activities. New research suggests that commonly used models in toxicological studies can fail to adequately predict the range of effects of complex mixtures of chemicals in aquatic environments. Stress caused by combinations of man-made pollutants found in water systems can compound the effects of natural stressors, such as low oxygen levels, on freshwater organisms. Currently, assessing the effects of ... |
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Drinking Water: Understanding the science and policy behind a critical resource
Water is one of those things that people usually take for granted—until it is either gone or unsuitable to drink. In 2007, residents in the southeastern United States were forced to take notice of water when extreme drought swept across the region. With no rain clouds on the horizon for months on end, lawns were shriveling and long-standing reservoirs were being sucked dry. Restaurants began using paper plates to avoid having to wash dishes. In Athens, Georgia, fans at the University of Georgia’s ... |
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Zorbit Technologies Inc.
Zorbit Technologies Inc. is the leading producer of a 100% natural, environmentally safe hydrocarbon absorbent. Zorbit harvests, prepares and markets PeatSorb™, a natural absorbent made from Canadian sphagnum peat moss. We are committed to providing a safe, clean alternative to clay, as a way to help keep our planet clean and safe for future generations. |
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- Agricultural water conservation and efficiency in California: a special focus on the Delta
The Sacramento-San Joaquin Delta is a critical resource. Almost half of the water used for California’s agriculture comes from rivers that once flowed ...
- Use of electrolytic oxidation for non-chemical pathogen inactivation in municipal wastewater
The use of chlorine and bromide chemicals as sanitizing agents by municipal wastewater treatment plants is becoming increasingly problematic. The cost ...
- Solvent-free oil-in-water analysis
Non-ionic surfactants can homogenize oily, produced water samples, creating optically clear microemulsions that are ideal for fluorescence measurements ...
- Combined experiences of thermal hydrolysis and anaerobic digestion
The basic principles of batch thermal hydrolysis process (THP) are well known and have been put into full practice in 20 plants around the world. This ...
- Toronto moves forward with anaerobic digestion of residential SSO
In June 2007, Toronto`s City Council approved the “Target 70” plan to achieve 70 percent diversion by 2010. Target 70 includes construction of two, 55,000 ...
- A downhill battle - managing stormwater in the City of Duluth
One look at the topography of Duluth, MN, and you under-stand the challenges facing the city’s storm-water management team.
Developed as a ...
- Protecting the lakes in Schuyler County, NY
Tim Hicks, watershed inspector for Schuyler County, N.Y., sees the regulator’s role as integral to the onsite wastewater industry. “As an industry, I’d ...
- A hard-won lesson in plumbing & drain-cleaning
After eight years owning Atomic Plumbing and Drain Cleaning in Virginia Beach, Va., Jim Steinle came to a painful realization: He was a fine plumber, ...
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