oa Civil Engineering = Siviele Ingenieurswese - From sludge to compost - Olifantsvlei Regional Sludge Handling Facility
This article outlines the process involved in converting sludge from wastewater into compost, thereby solving a major sewage treatment problem and at the same time providing a useful by-product The disposal of wastewater sludge is one of the most pressing problems facing large urban authorities responsible for the treatment of wastewater. The Greater Johannesburg Transitional Metropolitan Council (GJTMC) Wastewater Department is not excluded from this dilemma. Sludge is the waste product from the beneficiation of wastewater into 'clean' water. The environmentally safe disposal of wastewater sludges has generally been concerned with converting an unstable waste into a stable or inert waste, eg disposal to sacrificial land and landfills, incineration into ash, etc.
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