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Abstract. The paper offers update information on wastewater removal from phosphates. The writers describe the most commonly used efficient methods to remove phosphates from wastewater based on principles of biology, chemistry, physical chemistry and biological chemistry. The paper presents the results of research on phosphate-removing wastewater treatment methods using iron-bearing reinforced charge material. ForewordDuring the recent years, eutrophication processes have been posing as a serious threat for water bodies. Excess of biogenic substances coming from drainage areas deteriorates the quality of natural waters, and this generally causes changes in the structure of water body ecosystems. Overconcentration of biogenic substances triggers vigorous growth of cyanobacteriae, reduces dissolved oxygen content, suffocates fish populations, causes littoral overgrowth, and complicates water purification. Deteriorating quality of water in the water bodies is directly related to evolution of the processes of human-caused eutrophication. To resolve this complex issue, one needs to minimize biogenic discharge of nitrogen and phosphorus compounds into the waterbodies.Limits for biogenic substance discharge into the water bodies have been made more rigorous in the Russian Federation (below 0.05 mgr/L for oligotrophic water reservoirs), and are much above the global standards effective at present. Urban wastewaters are the main contributor of biogenic components that enter water reservoirs. Right now, science researchers worldwide pay much attention to develop new and improve the available wastewater treatment methods to remove biogenic components. The issue of biogenic substance removal, phosphorus in particular, is a priority for higher quality of wastewater purification, and works towards improved ecology of the water environment to the greatest extent >1, 2@.

Abstract. The article deals with innovative methods, technologies and materials intended to reduce the adverse ecological impact of human waste and various industrial waste situated in municipal solid waste landfills (MSW), on water bodies, soil, and atmosphere. The existence of these factors makes the region less attractive for urban development. A comparison has been made of the methods intended to reduce the damage caused to the environment, in order to provide for sustainable development of cities, using the example of an actual landfill situated in the territory of Moscow. A scheme of reconstruction is recommended for the drainage water treatment plant at this landfill, which will lead to improvement of the environmental situation and contribute to the development of territories in the adjacent districts, and to reduction of pollution load on the river and atmosphere.

The paper deals with the calculation of the contact time of waste water in the body of feed in the biofilter to determine the optimum settings.