Micro-power synchronous denitrification phosphorous removal biochemical water treatment technology

Abstract

The invention relates to a microdynamic synchronous denitrification and dephosphorization biochemical water treatment process. The technical problem to be solved by the present invention is to provide a novel biochemical water treatment process and its basic flow for simultaneous denitrification and phosphorus removal and efficient degradation of organic matter. The new process of the invention is characterized in that it adopts denitrification and phosphorus-accumulating functional bacteria and "anaerobic-anoxic-anaerobic-micro-aerobic" double-cycle process flow. Utilize special denitrification and phosphorus-accumulating functional bacteria, and maintain the maximum activity of the functional bacteria through the micro-dynamic oxygen supply system; assist in the monitoring and monitoring of online oxidation-reduction potential (ORP), dissolved oxygen (DO) and pH, through the "anaerobic-deficiency Oxygen" and "anaerobic-micro-aerobic" double-cycle process to realize the simultaneous denitrification and phosphorus removal of sewage by functional bacteria and the efficient degradation of organic matter.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a microdynamic synchronous nitrogen and phosphorus removal biochemical water treatment process. It is suitable for organic sewage containing nutrients such as nitrogen and phosphorus, such as municipal sewage, residential sewage, food industry sewage, catering industry sewage, etc. It is also suitable for high-concentration refractory organic sewage, such as poultry and livestock manure sewage, slaughterhouse washing Sewage, garbage seepage, etc. Background technique [0002] The discharge of untreated or substandard organic sewage containing nutrients such as nitrogen and phosphorus can cause environmental and ecological problems such as water pollution, water quality degradation, and damage to water ecological functions, and is particularly likely to cause the outbreak of eutrophication in water bodies. At present, the traditional sewage biochemical treatment process (such as m...

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Problems solved by technology

At present, the traditional sewage biochemical treatment process (such as municipal sewage A-O method) can meet the treatment requirements of denitrification and degradation of organic matter under low concentration conditions, but cannot meet the treatment requirements of simultaneous denitrification and phosphorus removal and degradation of organic matter, especially when high concentration is difficult. Degradation of organic sewage (such as livestock farm waste water)

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