A low-temperature anaerobic treatment device for industrial wastewater and its treatment process

Abstract

The invention relates to an industrial wastewater low-temperature anaerobic treatment device and a treatment process thereof. Industrial wastewater suitable or processing include chemical synthetic pharmacy wastewater, fine chemical engineering production wastewater, textile industry wastewater, washing industry wastewater and Lurgi gasifier process wastewater, intake water COD concentration suitable or processing is smaller than 10000 mg / L, TDS is smaller than 6000 mg / L, and the wastewater temperature is not lower than 15 DEG C. The industrial wastewater low-temperature anaerobic treatment device mainly comprises a low-temperature anaerobic hydrolysis unit and a wastewater backflow system. A traditional anaerobic reactor needs operate in a stable temperature range. The industrial wastewater low-temperature anaerobic treatment device and the treatment process achieve the purposes of reducing the heating temperature of the wastewater and keeping efficient reaction efficiency through the low-temperature anaerobic hydrolysis unit under the realistic condition that a typical low-temperature industrial wastewater anaerobic system difficulty achieves stable high efficiency, especially under the condition that the efficiency is obviously reduced in the temperature reduction process. The treatment process is efficient, simple in operation and high in adaptability and is an industrial wastewater low-temperature anaerobic technology having development potential.

Description

technical field [0001] The invention belongs to the field of waste water treatment, in particular to an anaerobic treatment device for industrial waste water and a treatment process thereof. Background technique [0002] With the development of the national economy, the depth and measures of environmental governance at the national level are increasing. On the premise of effectively controlling non-point source pollution, the investment and construction speed of sewage stations have been increased, and urban pollution non-point source control and sewage pipe network have been realized. All over the situation, to curb the occurrence of large-scale pollution. [0003] Anaerobic treatment is an important way to recover energy and reduce aerobic load. With the increase in manpower, electricity, and steam costs, anaerobic pretreatment is an important way to reduce the operating costs of pollution control enterprises and improve treatment efficiency. [0004] At present, the con...

AI Technical Summary

Problems solved by technology

During the biochemical degradation process of microorganisms, the presence of microbial metabolites will affect the water quality of the effluent and subsequent microbial degradation, and then this anaerobic system does not consider the temperature required by microorganisms and the efficient return of the system

[0013] To sum up, the anaerobic treatment system needs to maintain a high reaction temperature. The current series of anaerobic reactor patents are only for the proper optimization of the water distribution system and the stirring system, and lack the knowledge of the dynamics and thermodynamics of the entire system. Pay attention, especially the need to maintain a certain temperature to maintain the high efficiency of anaerobic

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