Sewage treatment technology with sequencing mud membrane symbiosis method

Abstract

The invention discloses a sewage treatment technology with a sequencing mud membrane symbiosis method, comprising the following steps: adding an anerobic microorganism carrier into a sealed anaerobic adjusting tank; stirring sewage by gas generated in the anerobic treatment process in an anerobic mode; and causing the anaerobic adjusting tank to intermittently operate within 24 hours. Sewage performed with anerobic treatment is pumped to the bottom of a one-level aerobic mud membrane tank to be distributed; during one-level aerobic mud membrane treatment, stirred, aerated and precipitated supernate automatically flows into the bottom of a second-level aerobic mud membrane tank to be distributed in the mode of ejecting water for effluent, then the processed supernate is performed with second-level aerobic mud membrane treatment, and operation is intermittently carried out within 24 hours; the one-level aerobic mud membrane pool is in high sludge concentration state, and the second-level aerobic mud membrane pool is in the low sludge concentration state; the supernate of sewage, which is stirred, aerated and precipitated, automatically flows in for coagulating sedimentation treatment in the mode of ejecting water for effluent. The supernate automatically flows in for coagulating sedimentation for chemical dephosphorization; the mixture is filtered to remove residual organic matter and suspended matters to reach standard water quality. The invention has the beneficial effects of smooth and intact treatment process, low operation cost, land saving, strong anti-impact load, and can prevent sewage from expanding, and treatment of sewage is efficient and saves energy.

Description

technical field [0001] The invention relates to a new sewage treatment process, in particular to a sequence batch type mud film symbiosis sewage treatment process. Background technique [0002] Water is an important factor for economic development and sustainable social development. With the continuous expansion of city size and population increase, water pollution has become a major problem. Urban sewage is an important cause of water pollution in rivers and lakes, and one of the main reasons restricting the sustainable development of many cities. Since the industrial revolution, urban domestic sewage treatment has been paid more and more attention by people. The rate of urban sewage treatment has become an important symbol of a region's civilization. Urban sewage treatment has developed from the original natural treatment and simple primary treatment to the use of various advanced technologies, advanced treatment of sewage, and reuse. The treatment process has also de...

AI Technical Summary

Problems solved by technology

Many current sewage treatment processes have the following problems: the water quality after treatment is not up to standard, the cost investment is too large, the direct operation cost per ton of water is too high, the area is too large, or it cannot be operated stably for a long time, etc.

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