Method for establishing enhanced biological phosphorus removal system

A biological phosphorus removal and formula technology, applied in the field of establishing an enhanced biological phosphorus removal system, can solve the problems of no contribution to phosphorus removal, instability of the enhanced phosphorus removal system, etc., to avoid high cost and secondary pollution, and to achieve high phosphorus removal effect. Effect

Inactive Publication Date: 2020-02-14
TIANJIN UNIV
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Problems solved by technology

Polysaccharide bacteria compete with phosphorus-accumulating bacteria for carbon sources, but there is no process of anaerobic phosphorus release and aerobic pho

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  • Method for establishing enhanced biological phosphorus removal system
  • Method for establishing enhanced biological phosphorus removal system
  • Method for establishing enhanced biological phosphorus removal system

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[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are for better understanding of the present invention by those skilled in the art, and do not limit the present invention in any way. Specific embodiments include the following aspects:

[0022] (1) The experimental device adopted in the present invention is a laboratory-scale SBR reactor. The reactor is cylindrical, with a total volume of 7L and an effective volume of 5L. The specific structure is as follows figure 1 As shown, automatic control functions such as water inflow, water outflow, anaerobic reaction, aerobic reaction, and online monitoring can be realized.

[0023] (2) Inoculate sludge. Take the mud-water mixture in the aeration tank of the sewage treatment plant. The treatment process of the sewage treatment plant is the SBR method, the sludge concentration is 3500-4000mg / L, and the HRT is...

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Abstract

The invention belongs to the field of sewage treatment, discloses a method for establishing an enhanced biological phosphorus removal system, and aims to improve the phosphorus removal rate of sewagetreatment, reduce the treatment cost and reduce secondary pollution. The method comprises five parts, which are an experiment device SBR reactor, sludge inoculation, an SBR reactor operation period, SBR reactor operation parameters and an artificial sewage formula. After 45 days of domestication, the TP removal rate of the enhanced biological phosphorus removal system reaches 97.5%, the COD removal rate reaches 91.2%, and the NH3-N removal rate reaches 38.8%. The method is a biological phosphorus removal method, a very high phosphorus removal effect is achieved, and high cost and secondary pollution caused by a chemical phosphorus removal method are avoided. The concentrations of initial reaction TP, COD and NH3-N of the enhanced biological phosphorus removal system established by the disclosed method are close to actual concentrations of inlet water of a sewage treatment plant, and a reference can be provided for technical transformation for improving the TP removal rate of the sewagetreatment plant.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to a method for establishing an enhanced biological phosphorus removal system. Background technique [0002] The excess of nitrogen and phosphorus in water is the root cause of eutrophication, and phosphorus removal is one of the key points of sewage treatment. Phosphorus removal mainly includes chemical phosphorus removal and biological phosphorus removal. Chemical phosphorus removal removes phosphorus in water by adding chemical precipitant and phosphate in wastewater to form insoluble precipitates. However, the effect of chemical methods on organic phosphorus is poor, and the cost of chemicals is high, and the sedimentation sludge is difficult to handle, which is easy to cause secondary pollution. The enhanced biological phosphorus removal process is considered to be one of the most economical and efficient sewage phosphorus removal processes. By creating an anaerobi...

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Application Information

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IPC IPC(8): C02F3/30C02F101/10
CPCC02F3/30C02F2101/105
Inventor 赵林龙莎
Owner TIANJIN UNIV
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