Intensive aerobic biochemical degradation system and intensive aerobic biochemical degradation method

Abstract

The invention discloses an intensive aerobic biochemical degradation system. The intensive aerobic biochemical degradation system comprises at least one biochemical degradation unit which comprises adrip-flowing layered shelf box body and a biological filtering pool box body, wherein a water distributor and a trickling material filler are arranged in the drip-flowing layered shelf box body; the trickling material filler is arranged below the water distributor; the drip-flowing layered shelf box bodies is superposed above the biological filtering pool box body; and a floating type filtering-material filler and an aerator are arranged in the biological filtering pool box body which is connected with the water distributor through a water pump. The biochemical degradation unit of the intensive aerobic biochemical degradation system provided by the invention combines a biological trickling technology with a contact type biochemical filtering pool technology; through treatment of the biochemical degradation unit provided by the invention, COD in organic wastewater is reduced, and end-of-process treatment of the organic wastewater in a factory is realized. The invention also discloses anintensive aerobic biochemical degradation method.

Description

technical field [0001] The invention relates to a system and method for treating organic wastewater, in particular to an intensive aerobic biochemical degradation system and method. Background technique [0002] A large amount of organic wastewater will be generated during the coating process of equipment using water-based topcoats. For example, the organic wastewater from automotive water-based topcoat coatings mainly contains high-molecular organic resin mixtures, volatile and non-volatile mixed organic solvents (of which low volatilization rate Alcohol and ether solvents), special additives, various co-solvents, various pigments and fillers solids and other mixed pollutants, organic substances include but not limited to the following components: water-soluble acrylic resin, 2-butoxyethanol, Diethylene glycol monobutyl ether, petroleum spirit, polypropylene glycol, tetramethyldecanediol, 2-propanol, 1-methyl-2-pyrrolidone, n-butanol, 5-chloro-2-methyl-3(2H ) isothiazolone...

AI Technical Summary

Problems solved by technology

Although the biological aerated filter technology itself is easier to control the water temperature, it is often used as the post-stage process of the anaerobic biological filter in the actual design and construction of sewage treatment. Like the anaerobic process without water temperature control, the biological filter The water temperature is also difficult to meet the requirements

[0012] Anaerobic biological filter technology first needs a large-scale floor area, and has no degradation function for volatile waste gas in organic wastewater, resulting in unorganized emissions and easy to generate odor

For an open anaerobic biological filter, heating in autumn and winter will become a burden, and continuous operation without heating is equivalent to temporarily storing organic wastewater in sludge without degradation. When the temperature rises, the sludge will Sudden abnormality makes it difficult to operate stably, and may produce hazardous sludge waste, causing secondary hazardous waste pollution

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