Industrial park domestic sewage and industrial wastewater treatment and recycling process

Abstract

The invention discloses an industrial park domestic sewage and industrial wastewater treatment and recycling process, and relates to the technical field of wastewater treatment. The industrial park domestic sewage and industrial wastewater treatment and recycling process comprises the steps of collecting wastewater to be treated in advance, and determining the type of the wastewater; and carrying out wastewater treatment based on wastewater categories, wherein the domestic sewage wastewater treatment comprises the steps of pre-collecting domestic sewage, pretreating the domestic sewage through a septic tank, and enabling the pretreated domestic sewage to flow into an adjusting tank; and the industrial wastewater treatment comprises the steps of collecting industrial wastewater in advance, and carrying out balance adjustment on water quality, water quantity and water temperature in a collecting tank; and pumping the industrial wastewater into a micro-electrolysis tank by a lifting pump, and destroying macromolecules of the wastewater through electrolysis. In allusion to a water treatment scheme that an industrial park is not provided with a matched municipal sewage pipe network and the current situation of surface water exceeds the standard, the process has the advantages of stable and efficient sewage treatment and low cost, ensures the stable operation of the process under the severe sewage condition, ensures the up-to-standard discharge of effluent, and is better and more stable in water quality and more beneficial to the natural environment.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a process for treating and reusing domestic sewage and industrial wastewater in industrial parks. Background technique [0002] The biological aerated filter process (BAF) is currently commonly used in domestic sewage treatment in cities. The process features are very prominent, and the effect is also very obvious. But there are also certain process defects, mainly in the low removal rate of total phosphorus, generally the removal rate is between 5-15%. In order to strengthen the removal of total phosphorus, it mainly relies on adding phosphorus removal agents to the filter. However, in actual operation, this will cause the filter to be easily blocked, speed up the backwash cycle of the filter, and eventually lead to a decrease in the production water load of the system. [0003] Moreover, a certain amount of domestic sewage and production wastewater are produced ...

AI Technical Summary

Problems solved by technology

However, its treatment cost is high, and its adaptability is poor, which cannot meet the requirements of sewage treatment in different production processes.

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