Device for achieving anaerobic ammonia oxidation and denitrification of continuous flow municipal sewage and application method thereof

Abstract

The invention relates to a device for achieving anaerobic ammonia oxidation and denitrification of continuous flow municipal sewage and an application method thereof, and belongs to the technical field of sewage disposal. The device primarily comprises four parts: a municipal sewage primary settling tank, a continuous flow A / O dephosphorization and decarburization device, a continuous flow SPN / A autotrophic nitrogen removal device and a side inhibiting system. According to the application method, the continuous flow SPN / A autotrophic nitrogen removal device is established in IFAS; partial nitrification floc sludge is separated from an anaerobic ammonia oxidation biological film in space; the municipal sewage of which COD and PO4<3->-P are removed by continuous flow A / O dephosphorization and decarburization device flows into the continuous flow SPN / A autotrophic nitrogen removal device for a denitrification reaction; and floc sludge is separated independently and transferred to the sideinhibiting system for side treatment, wherein NOB in the floc sludge is inhibited by an NOB inhibitor effectively, and meanwhile, anaerobic ammonium oxidation bacteria on a biological film are also prevented from being affected. The inhibited floc sludge returns to the continuous flow SPN / A autotrophic nitrogen removal device, so that long-term stable and effective integrated partial nitrification-anaerobic ammonia oxidation autotrophic nitrogen removal of the municipal sewage can be carried out in the device.

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment, and in particular relates to a device for realizing continuous-flow urban sewage anaerobic ammonium oxidation denitrification and its use method. A salt-oxidizing bacteria (referred to as NOB) inhibitor is a device and method for realizing anaerobic ammonium oxidation denitrification of continuous flow urban sewage. It can not only realize the recycling of organic matter and phosphorus resources, but also realize the autotrophic denitrification of anaerobic ammonium oxidation through sludge side suppression. It can be applied to urban sewage treatment. The process flow is reasonable, the operation is simple and convenient, and the treated water quality is high. Background technique [0002] The C / N ratio of urban sewage in my country is generally low, and the traditional biological denitrification process usually needs to add additional organic carbon sources to make the efflu...

AI Technical Summary

Problems solved by technology

The present invention is proposed based on the above research background, and aims to solve the shortcomings of the urban sewage anaerobic ammonium oxidation device in the prior art, such as unstable operation and poor effluent quality.

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