Multistage micro-power self-reflux sewage treatment reactor

Abstract

The invention discloses a micro-power self-reflux sewage treatment reactor which comprises a reactor body, an inner cavity of the reactor body is divided into a first-stage reaction zone and a second-stage reaction zone through a partition plate, a first water passing channel is formed between the lower end of the partition plate and the reactor body, and a first-stage hydraulic circulation structure and a second-stage hydraulic circulation structure are arranged in the first-stage reaction zone and the second-stage reaction zone. A first power assembly is arranged between the right portion, below the first-stage hydraulic circulation structure, of the lower surface of the first-stage reaction area and the partition plate, and a second power assembly is arranged between the right portion,below the second-stage hydraulic circulation structure, of the lower surface of the second-stage reaction area and the right side plate of the reactor body; the left side wall of the reactor body is provided with a water inlet a segmented water inlet is formed in the second-stage reaction zone on the reactor body, a solid-liquid separation clarification zone is arranged above the second-stage water circulation structure, a water collecting tank and a water passing weir are arranged in the solid-liquid separation clarification zone, and the water collecting tank and the water passing weir are communicated with the outside of the reactor body through a water outlet pipe. The reactor is energy-saving, reduces the equipment capacity, simplifies the operation, and saves the occupied area, equipment cost and operating cost.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a multi-stage micro-dynamic self-reflux sewage treatment reactor for treating sewage and waste water. Background technique [0002] A 2 The / O method is the abbreviation of the Anaerobic / Anoxic / Oxic process. In the method, an anaerobic biological treatment process is added before the conventional anoxic / aerobic biological treatment system, so as to achieve the effect of removing nitrogen and phosphorus while removing organic pollutants. The role of the anaerobic biochemical stage is a biological selector. Phosphorus accumulating bacteria release phosphorus to obtain energy under anaerobic conditions, creating conditions for aerobic phosphorus uptake; in the aerobic biochemical stage, microorganisms oxidize and decompose sewage and wastewater under the condition of sufficient dissolved oxygen Nitrification and phosphorus accumulation reactions are carried out at the same...

AI Technical Summary

Problems solved by technology

However, the disadvantage of this process is that the return mixed liquid and sludge need to be equipped with power equipment such as a return pump, and the power consumption will be increased. It is also necessary to set up power equipment such as mixers and flow devices, which also increases power consumption.

In addition, the existing solid-liquid separation and clarification zone is in A 2 The / O reactor is independently installed outside the container, which occupies a large area and requires high construction investment

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