Integrated anaerobic ammoxidation/denitrification/dephosphorization parallel short-range nitration low-carbon municipal sewage treatment device and method

Abstract

The invention relates to an integrated anaerobic ammoxidation / denitrification / dephosphorization parallel short-range nitration low-carbon municipal sewage treatment device and method, belonging to the field of sewage biological treatment. The device comprises a raw water tank, an integrated anaerobic ammoxidation / denitrification / dephosphorization reactor, a regulating water tank, a short-range nitration reactor and a water outlet tank, wherein municipal sewage respectively enters the integrated anaerobic ammoxidation / denitrification / dephosphorization reactor and short-range nitration reactor. In the integrated anaerobic ammoxidation / denitrification / dephosphorization reactor, phosphorus-accumulating bacterium fully utilizes the organic carbon source in raw water to release phosphorus in an anaerobic way. In the short-range nitration reactor, ammoxidation bacterium converts NH4<+>-N in the raw water into NO2<->-N, and the effluent water is subjected to water quantity regulation by the regulating tank to enter the integrated anaerobic ammoxidation / denitrification / dephosphorization reactor, thereby effectively removing nitrogen and also synchronously removing phosphorus and nitrogen. The method implements denitrification and dephosphorization on the sewage on the basis of saving the energy and fully utilizing the carbon source.

Description

technical field [0001] The invention relates to the technical field of sewage biological treatment, in particular to a process and method for integrated anaerobic ammonium oxidation denitrification dephosphorization and parallel short-range nitrification treatment of low-carbon urban sewage. Background technique [0002] Water is the material that human beings depend on for survival and the necessary condition for the existence of life and economic development. However, in recent years, the quality of water resources and environment has continued to decline, and the water environment has continued to deteriorate. China's surface water resources are seriously polluted, and groundwater resources are not optimistic. Considering the status quo of China's surface water resources comprehensively, only 32.2% meet Class I and Class II standards of the "Surface Water Environmental Quality Standards" (by river section statistics), 28.9% meet Class III standards, and only 32.2% meet Cl...

AI Technical Summary

Problems solved by technology

According to the water quality monitoring data of 2015 groundwater monitoring wells in the Haihe River Basin, only 22.0% of the total number of water quality standards met Class I-III water quality standards, and 43.7% and 34.3% of the total number of water quality standards met with Class IV and Class V water quality standards, namely 78% of the groundwater is polluted; in addition, the water quality of more than 2 / 3 of the monitored wells does not meet the sanitary standards for living and drinking

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