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Water Treatment

The Green Revolution

    Kermit the Frog once said, “It isn’t easy being green.” While this may be true, industry is still making the effort. Both in the U.S. and abroad, processors are not only striving to produce environmentally friendly products, but…

A commercial debut for a new process that removes phosphates and nitrogen from wastewater

Paques B.V. (Balk, Netherlands; edlinks.chemengonline.com/6897-535) has developed a cost-effective biological process (flowsheet) for removing phosphates and nitrogen from wastewater. The first commercial installation to use the new process officially opened last month at Aviko (Steenseren, Netherlands), where it is treating…

Looking beyond production

The impact of the chemical process industries (CPI) is much farther reaching than just the products that they produce. With respect for the power of the materials they handle, the CPI must act responsibly, considering factors that can affect workers,…

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Microfiltration For CPI Wastewater

    Pure water is an essential ingredient in the manufacture of a vast amount of products in the U.S. and, of course, throughout the world. In the industry for which I work, electricity generation, high-purity water is an absolute…

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Monitor Cations in CPI Wastewater for Better Performance

    A detailed follow up of the cations present in the wastewater of the Monsanto Europe site in Antwerp, Belgium, has led to an increased understanding of changing wastewater treatment plant performance. The chemical process industries' (CPI) other wastewater…

Recovering salt, fresh water and farmland from briny land

The rise of the salty water table in many areas of Australia is threatening a large area of agricultural land. In a two-year research, development and demonstration project, scientists have been looking for ways to solve the problem by producing…

Red microbes make a meal from ammonia

For a biological denitrification process that selectively converts ammonia into nitrogen gas, Paques B.V. (Balk, Netherlands; edlinks.chemengonline.com/6891-536) was among the winners of the EEP environmental award, which was presented at Pollutec 2006 (Lyon, France; 28 November–December 1). Developed in collaboration…

Immobilizing uranium

Researchers from Pacific Northwest National Laboratory (PNNL; Richland, Wash.; edlinks.chemengonline.com/6519-554) and their collaborators have discovered that certain microorganisms can be stimulated to bind uranium from soil when served ethanol for an hour per day. The microbes could be used to…

Tires filter wastewater

The mountains of used tires piling up around the world may be a source of a new filtration media that promises to be a cheaper and more efficient alternative to sand or anthracite, which are commonly used for filtering wastewater.…

Recovering struvite from sewage sludge

Ostara Nutrient Recovery Technologies Inc. (Vancouver, B.C., Canada; edlinks.chemengonline.com/6518-533) has constructed the first large-scale reactor to demonstrate the struvite recovery technology first developed by the University of British Columbia (UBC). The e700,000 reactor, located at the Edmonton Gold Bar sewage…