High-concentration organic industrial wastewater treatment and cyclic utilization integrated system

Abstract

The invention discloses a high-concentration organic industrial wastewater treatment and cyclic utilization integrated system. The high-concentration organic industrial wastewater treatment and cyclic utilization integrated system comprises a high-concentration sewage adjusting tank, an oiling agent sewage adjusting tank, a domestic and ground flushing sewage collecting tank, an emulsified oil separating device, a homogeneous hydrolysis tank, an efficient anaerobic reactor, a comprehensive sewage adjusting tank, a high-multiplication biological treatment tank, a settling tank, a filter and a monitoring and discharging tank, the high-concentration sewage adjusting tank is connected to the comprehensive sewage adjusting tank through the homogeneous hydrolysis tank and the efficient anaerobic reactor, the oiling agent sewage adjusting tank is connected to the comprehensive sewage adjusting tank through the emulsified oil separation device, and the domestic and ground flushing sewage collecting tank is directly connected with the comprehensive sewage adjusting tank. According to the invention, different wastewater is treated by different pretreatment processes and then enters the comprehensive sewage adjusting tank for deep treatment, pollutants are comprehensively reduced by adopting the high-multiplication biological treatment tank, and finally, through clarification and filtration treatment, the effluent quality is superior to the urban first-grade a standard, and the effluent is recycled.

Description

technical field [0001] The invention relates to an integrated system for the treatment and recycling of high-concentration organic industrial wastewater, which belongs to the field of sewage treatment in energy saving and environmental protection. Background technique [0002] The sewage generated during the production of polyester chips and short filaments is mainly divided into three categories, namely, high-concentration polyester chip sewage, oily sewage, domestic sewage and ground washing wastewater. At present, our company's existing patent CN 102491591B discloses a high-concentration sewage treatment system for polyester chips and short filaments. According to the characteristics of water quality, the system separates the three types of waste water, namely, oil agent, general waste water and polyester waste water; Pass the polyester wastewater through the QCS high-efficiency anaerobic reactor to greatly reduce the concentration of organic matter, reduce the load of su...

AI Technical Summary

Problems solved by technology

[0004] (1) Uneven mixing of mud and water in the hydrolytic acidification tank, sludge deposition, sludge loss, ph imbalance, and mechanical agitation prone to failure, etc.

[0005] (2) Most of the water distribution in the anaerobic reactor uses pipes to occupy the holes. This water distribution method has short flow, uneven water distribution, blockage of water distribution points, uneven mixing of mud and water, poor disturbance force, and bed pollution. Problems such as mud compaction, insufficient contact reaction, inability to achieve bed sludge granulation and low treatment efficiency

[0006] (3) The water seal used to collect methane gas at the top of the anaerobic reactor does not have the function of removing hydrogen sulfide, so that the sewage treatment station has the risk of air environment affecting human health

[0007] (4) It is impossible to adjust the sludge concentration, reaction temperature, pH value, etc. online to optimize the sewage treatment process

If there is no online regulation of ph value, it will lead to the loss of sludge expansion; there is no sludge concentration backflow anaerobic reactor and three-phase separation design, resulting in a decrease in treatment efficiency; the water sealer and anaerobic reactor gas storage chamber cannot be guaranteed. The position is constant within the set value range, which is not conducive to the normal operation of the water seal desulfurization device and anaerobic reactor, etc.

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