Treatment method for synthesis and fermentation type pharmacy industrial sewage

Abstract

The invention relates to the technical field of sewage treatment, in particular to a treatment method for synthesis and fermentation type pharmacy industrial sewage. The method can be used for domestic sewage pretreatment, production sewage pretreatment and comprehensive sewage treatment; after the production sewage and the domestic sewage are singly pretreated, sufficient mixing is performed; thecontinuous stability of biochemical system influent is further guaranteed; by aiming at the water quality and water quantity characteristics of the synthesis and fermentation type pharmacy waste water, the toxicity of the waste water is reduced through a Fenton advanced oxidization technology; biodegradability is improved; in addition, through the flocculent precipitation effect, flocs are eliminated; through the synchronous nitrogen and phosphorus removal process of A2 / O, the effluent quality of the sewage treatment is stable; the total hydraulic retention time is shortened; the active sandfiltering pool in the deep treatment section is an efficient filtering system integrating coagulation, clarification and filtering into a whole; the energy consumption is reduced, and the resources are saved.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a treatment method for synthesis and fermentation pharmaceutical industrial sewage. Background technique [0002] At present, my country's pharmaceutical industry accounts for 1.7% of the country's total industrial output value, but its sewage discharge accounts for 2% of the country's sewage discharge. The pharmaceutical industry is listed as one of the 12 key industries for environmental protection. The wastewater produced by the pharmaceutical industry is called environmental monitoring. The top priority of governance. The main pollutants contained in pharmaceutical industry wastewater are suspended solids (SS), chemical oxygen demand (CODcr), biochemical oxygen demand (BOD), ammonia nitrogen (NH3-N), cyanide and volatile phenols and other toxic and harmful substances. Pharmaceutical wastewater is one of the most difficult industrial wastewater. Due to different types...

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Problems solved by technology

[0004] For synthetic and fermentation pharmaceutical industrial wastewater, most of them adopt "pretreatment + biochemical treatment + advanced treatment process", such as: "air flotation + hydrolysis + SBR + filter", "micro electrolysis + UASB + CASS + filter", etc. However, none of them can achieve better treatment results. The process itself is more adaptable to antibiotic pharmaceutical sewage, but there are some defects in the treatment capacity of synthetic and fermentation pharmaceutical industrial sewage. The main problems are: ① The process method used in the pretreatment section is single, and the removal efficiency of cellulose and lignin in synthetic and fermentation pharmaceutical wastewater is low; It is characterized by poor biodegradability, and it is difficult to improve the effect through general treatment processes or low-oxidation treatment processes; ③ For synthetic and fermentation pharmaceutical industrial wastewater, the water quality and quantity vary with the types of drugs, raw materials and production processes. With large changes, the biochemical system must have the ability to resist shocks

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