Apr 03, 2014

April 2014

Communities across the country faced extreme cold and above-average precipitation this winter, and the weather took its toll on water infrastructure. WWD Editorial Assistant Chelsea Corbin recently spoke with Steve Tagert, president of Aqua Pennsylvania…
The city of Chandler (Ariz.) Municipal Utilities Department (MUD) employs coagulation, sedimentation, active flow control and filtration to produce 60 million gal per day (mgd) of water at its surface water treatment plant. In addition, the system…
The Stony Brook Regional Sewerage Authority (SBRSA) in Princeton, N.J., provides treatment and disposal services for wastewater residuals. Its River Road Wastewater Treatment Plant was constructed in 1976 and began accepting flow in 1978. The plant…
In 2008, the New Zealand Ministry of Health issued revised drinking water standards for drinking water safety. To comply, water treatment facilities must track, save and provide monthly reports on water production, intake and discharge levels. At the…
The Northern Village of Île-à-la-Crosse, Saskatchewan, Canada, operates a surface water treatment plant for its drinking water supply. The water source is Lac Île-à-la-Crosse in northern Saskatchewan, with its corresponding cold water temperatures. The…
With financial assistance from the World Bank, the Malawi government initiated a gravity-fed water supply scheme in the community of Dwambazi. The project, which includes more than 200 taps, benefits many community members and was co-financed by the…
Over the past decade, the cost of energy has risen at an alarming pace. It has become imperative that corporations and municipalities find ways to cut energy consumption. In wastewater treatment plants, the largest consumers of energy are blowers and…
It is easy to see why gravity belt thickeners, rotary drum thickeners and dissolved air flotation (DAF) systems have remained the dominant approaches to sludge thickening for decades. Early centrifuge technology for thickening—introduced more than 30…
How to Adjust Water Pressure If you are now the proud owner of a new pressure reducing valve or have just taken over a system that might have them installed—or you are just bringing one back online that has been out of service for repairs—then this…
With 100 years of service, the Kingsport (Tenn.) Water Filtration Plant has been providing clean water to the residents of the northeastern Tennessee city since its inception.  First established as the Kingsport Waterworks Corp. in 1914, the utility…
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