Biological anaerobic reaction equipment for treating textile printing and dyeing wastewater and use method of biological anaerobic reaction equipment

Abstract

The invention discloses biological anaerobic reaction equipment for textile printing and dyeing wastewater treatment and a use method thereof, and particularly relates to the field of textile production. The equipment comprises an anaerobic reaction box, a sealing box cover is arranged on the top surface of the anaerobic reaction box, and a nitrogen charging protection mechanism is fixedly mounted on one side of the anaerobic reaction box; wherein a deoxidizing liquid distributor is fixedly mounted on the bottom surface of an inner cavity of the anaerobic reaction box, a preheating mechanism, a microbial reaction mechanism and a condensation plate are fixedly mounted in the anaerobic reaction box, and the preheating mechanism, the microbial reaction mechanism and the condensation plate are sequentially arranged in the anaerobic reaction box from bottom to top. According to the scheme, the anaerobic reaction equipment is provided with a novel reaction grid block structure, and a plurality of biological reaction grids arranged on the surfaces of the reaction grid blocks are used for attachment of microorganisms, so that good conditions are created for active biological proliferation, the activity of the microorganisms in the reactor is high, the oxygen content is reduced by filling nitrogen, and the biological proliferation is quick; and the reaction efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of textile production, and more specifically, the invention specifically relates to a biological anaerobic reaction equipment for textile printing and dyeing wastewater treatment and a use method thereof. Background technique [0002] The textile printing and dyeing industry is an industrial industry that consumes a lot of water. Since all kinds of textile printing and dyeing products are processed with water as the medium in the process of wet processing, the printing and dyeing wastewater discharged during the production process has a large chroma and a high content of organic pollutants. , Water quality and water quantity change greatly, etc., and it is one of the difficult industrial wastewater to treat. The quality of printing and dyeing wastewater varies with fiber types and processing techniques, and the pollutant components vary greatly. The printing and dyeing process has a long program and many pr...

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Problems solved by technology

However, the existing UASB reactors are prone to some problems such as short flow, dead angle and blockage during operation, the mixing and contact efficiency of anaerobic microorganisms and wastewater is low, and the load and treatment efficiency and scope of application are relatively limited. Textile printing and dyeing Wastewater has poor biodegradability and many toxic substances, and the precipitated granular sludge cannot be deposited in the sludge to affect the reaction. Therefore, when a conventional high-efficiency anaerobic reactor is used as a biological decolorization reactor for textile printing and dyeing wastewater, the decolorization effect It is easily affected by changes in water quality and water quantity, the reactor has poor operational stability, complex management, and certain defects

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