RU2012134663A

RU2012134663A - METHOD FOR WATER CLEANING AND DEVICE FOR ITS IMPLEMENTATION

Info

Publication number: RU2012134663A
Application number: RU2012134663/05A
Authority: RU
Inventors: Александр Серафимович Курников; Дмитрий Сергеевич Мизгирев; Татьяна Васильевна Молочная; Сергей Леонидович Кубарев
Priority date: 2012-08-14
Filing date: 2012-08-14
Publication date: 2014-02-20
Also published as: RU2530106C2

Abstract

1. Способ очистки сточных вод, отличающийся тем, что при его реализации для производства комплексной очистки загрязненной воды выполняют следующую последовательность операций: предварительно освобождают от крупных фракций посредством отстаивания и фильтрации; обрабатывают кавитацией с одновременным смешением воды с коагулянтом в гидродинамическом кавитаторе; выдерживают необходимое для взаимодействия с коагулянтом и укрупнения загрязнений время в реакционной емкости и удаляют их посредством флотации; доочищают кавитацией в присутствии озоно-воздушной смеси во втором гидродинамическим кавитаторе; фильтруют; обеззараживают одновременным действием ультразвука и УФ-излучения.2. Устройство для осуществления способа очистки сточных вод по п.1, отличающееся тем, что при его работе производится комплексная очистка загрязненной воды, состоящее из функциональных блоков: предварительной очистки, содержащего отстойник и фильтр; блока коагуляции-флотации, где осуществляется обработка воды в гидродинамическом кавитаторе и смешивание ее с коагулянтом, взаимодействие частиц загрязнений с добавляемым коагулянтом в реакционной емкости внутри центральной обечайки флотатора-коагулятора, их укрупнение и удаление посредством флотации в флотаторе-коагуляторе, содержащем корпус, состоящий из концентрически расположенных круглых в плане обечаек, одна из которых является камерой флотации, конической перегородки в верхней части аппарата, которой между наружной и внутренней обечайками организованы камера сбора и удаления пены, а также емкость сбора, отстоя и накопления очищенной воды, причем для осуществления про1. The method of wastewater treatment, characterized in that when it is implemented for the production of a comprehensive treatment of contaminated water, the following sequence of operations is carried out: previously freed from large fractions by sedimentation and filtration; treated with cavitation with simultaneous mixing of water with a coagulant in a hydrodynamic cavitator; withstand the time necessary for interaction with the coagulant and coarsening of contaminants in the reaction vessel and remove them by flotation; further treated by cavitation in the presence of an ozone-air mixture in a second hydrodynamic cavitator; filtered; disinfect by the simultaneous action of ultrasound and UV radiation. 2. A device for implementing the wastewater treatment method according to claim 1, characterized in that during its operation a complex treatment of contaminated water is performed, consisting of functional blocks: a preliminary treatment containing a sump and a filter; coagulation-flotation unit, where water is treated in a hydrodynamic cavitator and mixed with a coagulant, the interaction of contaminant particles with an added coagulant in a reaction vessel inside the central shell of a flotator-coagulator, their enlargement and removal by flotation in a flotator-coagulator, containing a housing consisting of concentrically arranged round shells in plan, one of which is a flotation chamber, of a conical partition in the upper part of the apparatus, which is between the outer and the inner The shells organized a chamber for collecting and removing foam, as well as a capacity for collecting, sludge and accumulation of purified water.

Claims

1. The method of wastewater treatment, characterized in that when it is implemented for the production of integrated treatment of contaminated water, the following sequence of operations is performed: they are previously freed from large fractions by sedimentation and filtration; treated with cavitation with simultaneous mixing of water with a coagulant in a hydrodynamic cavitator; withstand the time necessary for interaction with the coagulant and coarsening of contaminants in the reaction vessel and remove them by flotation; further treated by cavitation in the presence of an ozone-air mixture in a second hydrodynamic cavitator; filtered; disinfect by the simultaneous action of ultrasound and UV radiation.

2. A device for implementing the wastewater treatment method according to claim 1, characterized in that during its operation a complex treatment of contaminated water is performed, consisting of functional blocks: a preliminary treatment containing a sump and a filter; coagulation-flotation unit, where water is treated in a hydrodynamic cavitator and mixed with a coagulant, the interaction of contaminant particles with an added coagulant in a reaction vessel inside the central shell of a flotator-coagulator, their enlargement and removal by flotation in a flotator-coagulator, containing a housing consisting of concentrically arranged round shells in plan, one of which is a flotation chamber, of a conical partition in the upper part of the apparatus, which is between the outer and the inner the shells organized a chamber for collecting and removing foam, as well as a capacity for collecting, sludge and accumulation of purified water, and for the flotation process, part of the water treated in the flotator-coagulator is returned by the pump through an ejector, which draws in atmospheric air and an aerator system into the flotation chamber; a tertiary treatment and disinfection unit, providing water treatment in the second hydrodynamic cavitator and mixing it with an ozone-air mixture generated from dried atmospheric air in a UV radiation unit, by filtration using, at the final stage, simultaneous treatment with ultrasound and UV radiation.