Improving the technology of municipal wastewater treatment with the use of the sorbent on the basis of surplus sludge
Abstract
Improving the technology of municipal wastewater treatment with the use of the sorbent on the basis of surplus sludge
Incoming article date: 13.05.2015In the framework of the given article shall be considered a negative impact on microorganisms of ions of zinc, copper and Nickel concentrations in the incoming wastewater to the wastewater treatment facilities of the cities of the Lower Volga region is unacceptably high, which inevitably reduces the quality of the purified water at the indicated metals exceeding the output after biological treatment is more than 30 times). Further, in the proposed article, we describe the results of studies aimed at disposal and treatment of waste activated sludge. The first attempt to use the resulting after biological purification of waste as a secondary raw material for the adsorption material, which retrieves the designated heavy metal ions from wastewaters prior to biological treatment, which allows further the activated sludge fully interact with other ions without losing their functions. As a result, after the biological cycle treated water at the indicated metals, meets the relevant standards.
Keywords: urban wastewater, biological treatment, heavy metal ions, sorption, activated sludge, adsorbent, filter segment