In 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

Problems of the treatment of highly mineralized water from surface sources. Today, more than 70% of rivers and lakes has lost its main function as sources of drinking water. An important problem is to find technological solutions that take into account the territorial features and allows you to create reliable purification of saline natural waters with minimal capital and operating costs. In the present paper presents the results of a study of the composition and properties of natural raw chocolate clay Altonaga field, studied its sorption properties.

Keywords: the quality of water, saline water, surface water sources, the sorbent