Sludge comes from wastewater treatment plants are sometimes hazardous to environment especially comes from industrial wastewater treatment plants.
As usual for industrial wastewater treatment plants sludge drying units are commonly filter presses. This type of pressurized equipments gives %25 dry sludge and output can easily transport to landfill areas.
However this landfill process sometimes done uncontrolled ways without permission from environmental institutes.
Detailed filter press sludge can be find from following website.
Friday, January 25, 2013
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