Non-even aerating integrated sewage water advanced treatment apparatus

Abstract

The invention provides an integrated advanced wastewater treatment device of non-uniform aeration, which is an integrated reaction tank formed by the nesting of an internal barrel and an external barrel to form sealing with underside liquid. The inner chamber of the internal barrel is a hydrolysis and acidification tank, the cavity surrounded by the walls of the internal barrel and the external barrel constitutes a biofilter; by the nesting of two barrels with different diameters, the invention forms the integrated device with the hydrolysis and acidification tank in the inner part and the biofilter at the periphery, thus leading to more reasonable functional subareas for removing solid and soluble pollutants, greatly increasing the adaptability of the device to the changes of the amount and quality of wastewater, realizing economical and high-efficiency removal of SS, COD, NH4<+>, PO4<3->, TN, TP and other pollutants, and being beneficial to the subsequent reuse of the treated water.

Description

(1) Technical field [0001] The invention relates to an integrated sewage advanced treatment device with non-uniform aeration. (2) Background technology [0002] Water pollution control technology is a branch of environmental engineering. With the shortage of water resources and the tightening of environmental standards, the advanced treatment technology of sewage, especially the deep removal technology of TN, TP, and SS, has become an important part of the current sewage treatment and reuse. Hotspots and Difficulties. At present, large-scale centralized sewage treatment is still an important way of water pollution control, but in view of its huge investment and energy loss, as well as the existence of a large number of production and domestic pollution sources that have not been included in the urban drainage system, decentralized sewage treatment and Reuse technology has become an important direction for the development of water pollution control in the future. [0003] I...

AI Technical Summary

Problems solved by technology

At present, there are still some problems in the treatment technology and equipment for this type of sewage: (1) The equipment is not very specific

Restricted by traditional technology and design concepts, many complete sets only focus on COD and BOD 5 Such as the removal of organic matter, while ignoring the removal of nitrogen and phosphorus, resulting in the quality of the effluent water from the device mostly failing to meet the functional requirements of the receiving water body, causing eutrophication; (2) Improper selection of design parameters

Although the distributed sewage is easy to degrade, the water quality and water volume fluctuate greatly, which leads to the fact that the device often fails to treat according to the design working conditions in actual operation, and due to the lack of adjustment and guarantee measures, it affects its standard discharge under the change of influent water quality ; (3) The process is complicated and expensive

In order to realize the advanced treatment of sewage, the previous technical processes and devices are often more complicated, resulting in inconvenient operation and high cost, so the performance of the device is unstable during operation, and there are many equipment failures

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