Abstract
The Baltic Sea is not only important for transport, but for a long time it has been supplying people with seafood. In 1998, the Government of the Russian Federation adopted Decree N 1202 “On approval of the 1992 Convention on the Protection of the Marine Environment of the Baltic Sea Region”, according to which Russia approved the Helsinki Convention and its obligations. However, the threat of eutrophication has become urgent for the Baltic Sea basin and Northwest region due to the increased concentration of phosphorus and nitrogen in wastewater. This article studies the methods of dephosphation of wastewater using industrial waste.
Highlights
IntroductionThe main topic of the article is to show the possibility of using industrial waste as reagents to optimize the water treatment system of rivers flowing into the Baltic Sea and water reservoirs of the Northwest-region (including part of the water system of the Vologda Region associated with the Baltic basin) in order to bring the quality of wastewater to the international requirements established for the Baltic Sea
The main topic of the article is to show the possibility of using industrial waste as reagents to optimize the water treatment system of rivers flowing into the Baltic Sea and water reservoirs of the Northwest-region in order to bring the quality of wastewater to the international requirements established for the Baltic Sea
Similar data were obtained throughout the Northwest region
Summary
The main topic of the article is to show the possibility of using industrial waste as reagents to optimize the water treatment system of rivers flowing into the Baltic Sea and water reservoirs of the Northwest-region (including part of the water system of the Vologda Region associated with the Baltic basin) in order to bring the quality of wastewater to the international requirements established for the Baltic Sea. Conditions are created when activated sludge alternately passes through the anaerobic and aerobic zones, which stimulates the development of phosphorus bacteria in it to implement the technology of dephosphorization in the system of biological treatment. It is essential to comply with the condition of the presence of a sufficient amount of oxidizable organic substances in the original wastewater entering the anaerobic zone for effective biological purification from phosphorus using dephosphorization technology. This condition is especially relevant for Russia, where joint sewage disposal is generally utilized. Physical and mechanical and physicochemical properties, biological and combined cleaning methods (biochemical and biothermal) are widely used in the UK, USA, Japan, Germany, and Sweden[8]
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