abr anaerobic baffle reactor and treatment method for high-salt and high-cod concentration wastewater

Abstract

The invention discloses an ABR anaerobic baffle reactor and a method for treating high-salt and high-COD concentration wastewater by using the reactor. The reactor has at least five compartments, and each compartment is provided with a mud discharge pipe. In addition, the first two compartments of the reactor are set to reflux, and the elastic packing is fixed in the compartments. The dominant flora in the first two compartments is SRB, and the dominant flora in the last three compartments is MPB. When treating high-salt and high-COD-concentration wastewater, the reactor must be started first, and then the phase separation of the dominant bacteria is achieved, and then the high-salt and high-COD-concentration wastewater is introduced into the reactor for treatment. The ABR anaerobic baffle reactor of the present invention can form different microbial phases in different compartments, start up quickly, and the water outlet effect is less affected by impact load, temperature and other factors, and the removal rates of salt and COD in waste water can respectively reach more than 95%. And more than 50%, and can treat waste water for a long time, and the water output effect is stable.

Description

technical field [0001] Embodiments of the present invention relate to the field of industrial wastewater purification, and more specifically, embodiments of the present invention relate to an ABR anaerobic baffle reactor and a treatment method for high-salt and high-COD concentration wastewater. Background technique [0002] With the acceleration of my country's industrialization process, many production areas will produce high-salt wastewater. With the development of industry and the shortage of water resources, the pollution concentration of high-salt production wastewater produced by some industrial industries is getting higher and higher, and the composition is getting higher and higher. complex, the emissions are getting bigger and bigger, and the pressure on the environment is getting bigger and bigger. Therefore, the research on high-salinity industrial wastewater treatment technology is imminent, and exploring effective high-salinity industrial wastewater treatment te...

AI Technical Summary

Problems solved by technology

[0003] 1) There is currently a lack of statistical data on saline industrial wastewater;

[0004] 2) The inhibitory effect of refractory organic matter on microorganisms in industrial high-salt wastewater is still not difficult;

[0005] 3) Simple biological treatment technology is difficult to meet the emission standards;

[0006] 4) The electrochemical method is simple and fast, but the treatment cost is high and the COD removal rate is low;

[0016] 4) Traditional activated sludge process

[0024] The above-mentioned various wastewater treatment methods have their advantages, but their operation methods are complicated or costly, and when treating wastewater with high salt and high COD concentration, the effluent effect is greatly affected by factors such as impact load and temperature. In terms of phase separation, it is difficult to specifically cultivate dominant bacterial species, and the adaptability of the bacterial population to high salt concentration and high COD concentration, as well as the removal rate of salt and COD, need to be improved, so as to realize the treatment of wastewater with high salt and high COD concentration To achieve the ideal purification effect

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