RU94045299A - Method of purifying waste water from petroleum products
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Method of purifying waste water from petroleum products
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RU94045299A
RU94045299ARU94045299/25ARU94045299ARU94045299ARU 94045299 ARU94045299 ARU 94045299ARU 94045299/25 ARU94045299/25 ARU 94045299/25ARU 94045299 ARU94045299 ARU 94045299ARU 94045299 ARU94045299 ARU 94045299A
Северо-Кавказский государственный технологический университет
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Solid-Sorbent Or Filter-Aiding Compositions
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Abstract
FIELD: waste water purification. SUBSTANCE: in a known method of waste water purification including its treatment with a reagent followed by purification of clarified water phase, treatment of initial solution is made at 20-50 C with poorly soluble or insoluble calcium compounds which are entered portionwise until emulsion is broken and solution is clarified. Clarified solution, after filtration, is transferred to adsorption process and therefrom to consumers, while sediment is calcined to recover calcium compounds to be recycled. EFFECT: improved conditions in industrial zone owing to higher degree of water purification and utilization of purification products; reduced cost of process.
Claims (1)
Изобретение относится к области очистки сточных вод от нефтепродуктов и может быть использовано для очистки промышленных и бытовых сточных вод. Целью изобретения является улучшение обстановки в зоне промышленных предприятий за счет повышения степени очистки водной фазы от нефтепродуктов и утилизации продуктов очистки, повышение экономичности процесса за счет регенерации реагента и оборотного использования очищенной воды. Эта цель достигается тем, что в известном способе очистки сточных вод от нефтепродуктов, включающем их обработку реагентом с последующей очисткой осветленной водной фазы, обработку исходного раствора осуществляют мало- и/или нерастворимыми соединениями кальция, которые вводят в очищаемый раствор порционно до разрушения эмульсии и осветления раствора, затем осветленный раствор после фильтрации направляют на адсорбцию, после чего направляют в оборот, а осадок прокаливают для регенерации соединений кальция, которые вновь подают на очистку. Обработку исходного раствора осуществляют при 20 - 50°С.The invention relates to the field of wastewater treatment from petroleum products and can be used for the treatment of industrial and domestic wastewater. The aim of the invention is to improve the situation in the zone of industrial enterprises by increasing the degree of purification of the aqueous phase from oil products and the disposal of refined products, increasing the efficiency of the process due to the regeneration of the reagent and the recycling of purified water. This goal is achieved by the fact that in the known method of purification of wastewater from petroleum products, including their treatment with a reagent followed by purification of the clarified aqueous phase, the treatment of the initial solution is carried out with slightly and / or insoluble calcium compounds, which are introduced portionwise into the solution to be purified until the emulsion is destroyed and clarified solution, then the clarified solution after filtration is sent to adsorption, then sent to circulation, and the precipitate is calcined to regenerate calcium compounds, which are again sent for purification ku. Processing the initial solution is carried out at 20 - 50 ° C.
RU94045299A1994-12-271994-12-27Method of removing dispersed and emulsified oils from waste water
RU2093241C1
(en)