Green roof partition type multilevel AO integrated wastewater treatment technology

A green-top partition type and sewage treatment technology, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, biological treatment devices, etc., can solve the problem of low adsorption capacity of fillers, prolong hydraulic retention time, improve Oxygen mass transfer efficiency and oxygen utilization rate, the effect of full anaerobic phosphorus release

Inactive Publication Date: 2019-03-22
WUHAN UNIV OF TECH
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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 freq

Method used

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  • Green roof partition type multilevel AO integrated wastewater treatment technology
  • Green roof partition type multilevel AO integrated wastewater treatment technology
  • Green roof partition type multilevel AO integrated wastewater treatment technology

Examples

Experimental program
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Embodiment 1

[0049] Example 1, see Figure 1 to Figure 3 :

[0050] A kind of multi-level AO integrated sewage treatment process with green top partition type adopts a three-level A / O integrated treatment pool with constructed wetland on the top of the pool, including the following steps (see figure 1 ):

[0051] 1) Sewage enters the regulating tank for homogenization and equalization;

[0052] 2) The sewage in the regulating tank enters the first-level A through the overflow pipe 5 1 / O 1 A of processing pool 1 After anaerobic phosphorus release in the treatment tank, the O 1 In the treatment pool, aerobic phosphorus absorption and nitrification are carried out; part of the sewage in the adjustment pool is sent to the secondary A through the water distribution pipe 4 by the submersible pump 2 2 / O 2 A of processing pool 2 Treatment pool and tertiary A 3 / O 3 A of processing pool 3 Treatment ponds, which provide carbon sources for denitrification;

[0053] 3)O 1 The sewage tre...

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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...

Claims

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Application Information

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IPC IPC(8): C02F3/30C02F3/32C02F3/34C02F101/16C02F101/10
CPCC02F3/302C02F3/32C02F3/34C02F2101/105C02F2101/16C02F2203/006
Inventor 李柏林王恒王伟李晔
Owner WUHAN UNIV OF TECH
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