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Measuring Methane-Based Digester Gas Flow In Wastewater Treatment Plants
 
By Fluid Components International

While traditionally flared by wastewater treatment plants, many facilities are now turning the methane produced by their digester processes into a fuel source. The harvested digester gas is used to generate on-site heat and, with cogeneration technologies, to generate electricity.

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New Media Reduces Cadmium From Electroplating Wastewater Discharge

An electroplating facility in California specializing in aircraft components was issued specialty permit levels for the reduction of cadmium in discharge wastewater. The current permit of 250ppb was reduced to 70ppb and the allowed cadmium levels are expected to move lower over the next few years.