A multi-stage a/o process integrated reactor for hair product wastewater treatment

Abstract

The invention provides a multi-section A / O process integrated reactor for hair product wastewater treatment. The integrated reactor includes a pretreatment tank which is used for removing degradation-resistant impurities in the hair product wastewater and adjusting the pH value and the dissolved oxygen concentration of the hair product wastewater, the pretreatment tank comprising a combined grid,an adsorption device, a pH adjusting device and a deoxidation device; an A / O combined reaction tank, which is used for treating hair product wastewater and comprises an anoxic tank I, an aerobic tankI, an anoxic tank II, an aerobic tank II, an anoxic tank III, an aerobic tank III, a sedimentation tank and a discharge tank, which are sequentially arranged and communicated; a water inlet device, which is communicated with the bottoms of the pretreatment tank, the anoxic tank I, the anoxic tank II and the anoxic tank III respectively; an aeration device, which is used for aerating the aerobic tank I, the aerobic tank II and the aerobic tank III respectively; and a sludge return device that is used for returning sludge. In conclusion, the device has the advantages of novel structure, convenience in operation and management, good effluent quality and the like.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a multi-stage A / O process integrated reactor for wastewater treatment of hair products. Background technique [0002] The hair products industry is a relatively major sewage discharge industry, and sewage discharge is an important reason for the water quality in the basin to exceed the standard. In the process of producing hair products, various processes bring in different pollutants, mainly wool fat, gum, dyes (including benzene, phenol and amine) and auxiliaries (surfactant, chelating agent and homochromatin, etc.) and other organic pollutants and NH 4 + The main nitrogenous pollutants. The comprehensive wastewater from the hair product industry agglomeration area is mixed into the effluent of hair product enterprises. In the case of insufficient DO, it is difficult to remove refractory substances such as benzene, phenol and amine. Therefore, it is...

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Problems solved by technology

However, a large number of multi-stage A / O processes do not have an anaerobic zone, so the ability to remove phosphorus is limited. At present, there is a demand for phosphorus removal technology in sewage treatment, and the operation mode of continuous multiple alternate aeration makes multi-stage A / O polluting. Potential risks of mud bulking

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