Green roof partition type multilevel AO integrated wastewater treatment technology

Abstract

The invention provides a green roof partition type multilevel AO integrated wastewater treatment technology. A three-level A / O integrated treatment tank with a modified artificial wetland on the top of the tank is adopted. The technology comprises the following steps: guiding wastewater into a regulating reservoir for homogenizing; treating by guiding the wastewater to flow by a first-level A1 / O1treatment tank, a second-level A2 / O2 treatment tank and a third-level A3 / O3 treatment tank in turn; adopting a real-time fine regulation and control system for real-time monitoring and remote control:adopting a DO and pH monitor and an ORP monitor for monitoring internal state of treatment tank in real time, adopting a NH4+-N sensor, a NO3--N sensor and a TP sensor for monitoring effluent qualityof each-level treatment tank, transmitting the collected signals to a PLC control system, calculating real-time control variable according to a running procedure and online controlling the running state of system. The technology provided by the invention adopts a multilevel AO integrated process, requires no backflow of mixed liquid and has the advantages of less floor area, low investment, simple and flexible running, low energy consumption, high efficiency, convenience in maintenance, and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a green-top partition type multi-stage AO integrated sewage treatment process. Background technique [0002] my country is a country with a large agricultural population, with a vast rural area, which produces a large amount of domestic sewage every day. Only some households have built septic tanks or biogas digesters for simple sedimentation and fermentation treatment of domestic sewage. Most villages lack special facilities. Sewage collection and treatment facilities, domestic sewage is directly discharged without treatment, which makes rural domestic sewage become another serious source of water pollution. At present, with the rapid development of the rural economy and the improvement of people's living standards, the requirements for rural domestic sewage treatment are also increasing. Although the problem of rural sewage treatment has received widespread attention fr...

AI Technical Summary

Problems solved by technology

Packing adsorption mainly removes pollutants in sewage through physical and chemical effects such as packing adsorption, but often the packing capacity is not high and needs to be replaced frequently. The replaced packing needs to undergo a series of treatments to achieve regeneration. A series of problems such as the generation of waste liquid and the need to treat the waste liquid

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