Analysis of Economic Efficiency of Production of Low-Concentrated Sodium Hypochlorite by Direct Electrolysis of Natural Waters

[摘要] The study presents the economic efficiency of direct electrolysis of natural waters in comparison with the waters artificially prepared by electrolysis of the 3% sodium salt solution. The study used sea water (Black sea water); mineral water (underground water of the Melikhovskaya station, "Ognennaya" hole); brackish water (underground water from the Grushevskaya station of the Aksai district); 3% solution of sodium salt. As a result, the dependences characterizing the direct electrolysis of natural waters with different mineralization, economic, and energy parties are shown. The rational area of the electrolysis for each of the investigated solution is determined. The cost of a kilogram of active chlorine obtained by the direct water electrolysis: Black sea from 17.2 to 18.3 RUB/kg; the Melikhovskaya station "Ognennaya" hole - 14.3 to 15.0 Rubles/kg; 3% solution of NaCl - 30 Rubles./kg; Grushevskogo St. - 63,0-73,0 Rubles/kg.

[发布机构] Department of Water Management, Utilities and Environmental Protection, Platov South-Russian State Polytechnic University (NPI), St. Prosvescheniya 132, Rostov region, Novocherkassk; 346428, Russia^1

[学科分类] 土木及结构工程学

[关键词] Active chlorine;Black sea waters;Brackish water;Economic efficiency;Mineral water;Natural waters;Sodium hypochlorites;Water electrolysis