Water and Wastes Digest Archive


September 2013
High levels of nutrients in the Chesapeake Bay date back to the 1970s. Since then, Chesapeake Bay states have made numerous efforts to reduce nutrient pollution. As it became clear that these efforts alone were inadequate, in 2010, the U.S. Environmental...
It is time once again to wade into the deep and murky waters of shale gas and hydraulic fracturing (fracking). A lot has happened since my “Drill, Maybe Drill” column from May 2011, yet some of the same factual, scientific, legal and policy questions...
As a Peace Corps volunteer in the early 1990s, I lived in Zangasso, Mali, a small fueling oasis on the only road between two provincial capitals. My Malian neighbors taught me about being resourceful and how to see new uses for what was once garbage....
In high-risk industry settings such as water and wastewater treatment plants, safety is a primary concern. Failure to manage risk and implement policies and procedures that protect workers can exact significant tolls on a business—from lost revenue as a...
A recent $10.2-million upgrade at the regional wastewater treatment plant operated by the Portage (Pa.) Area Sewer Authority doubled the facility’s daily flow rating to 2 million gal per day (mgd) and brought the previously deficient peak rating up...
Water and energy are two of our most crucial resources and their interdependence is unquestionable. Water and wastewater utilities need a substantial amount of energy to conduct processes and operations. Faced with tightening budgets and high energy...
Owned and operated by the Metropolitan Water Reclamation District of Greater Chicago (MWRD), Stickney Water Reclamation Plant (WRP)—the largest wastewater treatment facility in the world—is subject to continuous rehabilitation and upgrading. Situated on...
In the upper northwest corner of Oregon, Clackamas County is surrounded by frontier wilderness and scenic beauty—it is home to the end of the Oregon Trail, the soaring peaks of Mt. Hood, the largest waterfall in the Pacific Northwest (Willamette Falls)...
In 2000, the hot topic in the wastewater industry was prescreening for membrane bioreactors (MBRs). In order for this advanced technology to perform well in wastewater treatment, it was essential to stop hair and fibrous material from binding the...
Industrial facilities that use large amounts of water are facing the prospect of increasing regulation of water withdrawal and discharge. Scarcity is the main driver of global water reuse policies.  In China, population growth, economic factors and...

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