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biosolids |
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biosolidsSewage sludge, the residues remaining from the treatment of sewage. For use as a fertilizer in agricultural applications, biosolids must first be stabilized through processing, such as digestion or the addition of lime, to reduce concentrations of heavy metals and harmful organisms (certain bacteria, viruses, and other pathogens). This processing also reduces the volume of material and stabilizes the organic matter in it, thus reducing the potential for odours. Use of biosolids in agriculture has become controversial, critics claiming that even treated sewage may harbour harmful bacteria, viruses, and heavy metals. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| biosolids on the grounds that they were environmentally unsafe, yet allowed cities within Kern County to keep using biosolids as farmland fertilizer. The operation will take pressure off the aging biosolid lagoons, which need to be drained and relined, Smith said. Editorial deals with the investigation of biosolids from the treatment of water, residual wastes from municipalities and industries, policy analysis, process controls, economics and the management of toxic residuals. |
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