Water body pollution in-situ purification device

Abstract

The invention discloses a water body pollution in-situ purification device, which comprises a water inlet grating, an anaerobic zone, an aerobic zone, combined packing and a power system. After undergoing primary filtration through the water inlet grating, polluted raw water enters the device; after being hydrolyzed by microbes in the anaerobic zone, the polluted water is pumped by a water pump tothe rear aerobic zone and simultaneously exposed to the air and then the sewage undergoes carbon oxidation and nitration by aerobes in the aerobic zone; after purification, the effluent is mixed withsurrounding water so as to gradually improve the quality of the water body. The aerobic zone of the device is filled with the combined packing composed of elastic packing and complex packing. A waterinlet head part is arranged by the bionic ''shark head'' mode, the water inlet grating is arranged at the front lower ''fish mouth'' part of the water inlet head part, and the polluted raw water enters the device through the ''fish mouth'' grating, thus preventing the device from being blocked by silt, leaves and the like in the river. By the efficient and intensive design, the device of the invention has advantages of low energy consumption, low cost and low maintenance, will not additionally occupy lands by the adoption of underwater in-situ installation, will not affect the landscape and has no noise.

Description

technical field [0001] The invention belongs to the field of water pollution treatment, and in particular relates to biofilm reoxygenation purification technology. Background technique [0002] In the water pollution of urban rivers, black and odorous water is the most serious state of natural water pollution, usually manifested as black and smelly, the water quality indicators of the water body seriously exceed the standard, plants die, and the aquatic ecosystem is destroyed. The characteristic indicators of black and odorous water body include transparency, dissolved oxygen, redox potential and ammonia nitrogen. The root cause of the black and odorous water body is organic pollution. At the beginning, aerobic microorganisms degrade organic matter and consume a large amount of dissolved oxygen in the water, until the water body is transformed into anoxic or anaerobic state. At this time, the water body is in a reduced state, sulfur ions and iron, manganese and other metal i...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problems of high investment and operation cost, large engineering quantity, low efficiency, incompleteness and easy repetition of the existing black and odorous water treatment technology, and to provide a water pollution source for artificially intensified in-situ treatment of black and odorous water. In-situ purification device, through intensive artificial aeration and solidified biofilm technology, realizes combined integration, artificially strengthens the action of microorganisms in the water body, increases the concentration of dissolved oxygen, and continuously operates to purify the water quality in situ

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