Criteria for Choosing Procedure for Disposal of Sewage Sludge Produced at Wastewater Treatment Facilities
Abstract
A generalized algorithm for studying waste composition and choosing procedure for disposal of sewage sludge produced at urban and rural wastewater treatment plants after its biological treatment or secondary treatment in bioreactors is proposed. The algorithm was tested as exemplified for a sample of real sludge which was formed after wastewater purification at urban facilities for treatment of household wastewater. The results of the sewage sludge sample assays using a set of modern physicochemical methods of analysis were compared with the data taken from current standards for the relevant parameters. Studies of physicochemical characteristics for the sediment sample showed its radiological, chemical and biological safety, as well as high energy capacity level. The obtained results made it possible to classify the test sample as a low-hazard material and recommend its use for technical restoration of disturbed lands or production of energy briquettes.
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Copyright (c) 2019 E. M. Bayan, L. E. Pustovaya, and V. Yu. Storozhenko
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