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Deep channel type oxidation channel wastewater treatment system

A sewage treatment system and oxidation ditch technology, applied in the direction of aerobic process treatment, sustainable biological treatment, etc., can solve the problems that the sewage treatment plant occupies a large area, cannot reproduce the water flow velocity in real time, and the limitations of ditch depth and ditch width, etc. To achieve the effect of expanding sewage treatment capacity, solving the problem of easy sedimentation, and increasing the depth of the ditch

Inactive Publication Date: 2009-05-06
SHAANXI QINGYUAN ENVIRONMENT INDAL
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

In addition to the requirements of the installation method, the depth and width of the trench are limited to a certain extent.
The entire process is complicated, the equipment investment is large, and the water flow velocity cannot be reproduced in real time, especially the sewage treatment plant occupies a large area and has poor economic benefits.

Method used

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  • Deep channel type oxidation channel wastewater treatment system
  • Deep channel type oxidation channel wastewater treatment system
  • Deep channel type oxidation channel wastewater treatment system

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Embodiment Construction

[0015] Accompanying drawing is embodiment of the present invention.

[0016] Below in conjunction with accompanying drawing, content of the invention will be further described:

[0017] refer to figure 1 , figure 2 As shown, a deep-ditch oxidation ditch sewage treatment system includes an annular oxidation ditch 1 with a diversion wall in the middle, and a circulating jet water pump 2 connected to an air-supply low-pressure jet aeration device 3 is installed on the ground. An air-supply low-pressure jet aeration device 3 is installed at the bottom, and a real-time online water flow rate and depth measuring device 4 and a dissolved oxygen analyzer 5 are installed in the ditch, and the air-supply low-pressure jet aeration device 3 is changed according to the set control mode. The flow rate of the circulating jet water pump 2 or the air supply fan of the jet aeration device 3, the shape of the oxidation ditch 1 is an elliptical ring, a circular ring or a rectangular ring.

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Abstract

The invention disclosed a ditch-depth style oxidation ditch sewage disposal system, which comprised the following parts: ring-shaped oxidation ditch with training wall in the middle of the ring-shaped oxidation ditch; recycle water jet pump; air-supplying style low-voltage efflux aerator at the bottom of trench; real-time on-line style measuring device of current rate or depth in the trench; dissolved oxygen meter. The invention is characterized by the following: increasing the depth and width of oxidation ditch to reduce the accommodation area of oxidation ditch; saving land-use fees and accommodation area (the ditch depth is between 4m and 12m; range of furrow width is between 3m and 28m ). The invention simplifies the structure, which is widely used for sewage disposal plant.

Description

technical field [0001] The invention relates to a sewage treatment system, and is especially suitable for a deep ditch oxidation ditch sewage treatment system. Background technique [0002] In my country's existing aerobic biological treatment of urban wastewater, domestic wastewater and industrial organic wastewater treatment systems, the oxidation ditch that is currently widely used is that the mixed liquid circulates in a closed annular channel and mixed with aeration. The inflow sewage and return sludge enter the oxidation ditch to participate in the circulation and get diluted and purified, and the mixed solution equal to the total amount of the inflow sewage and return sludge flows into the secondary sedimentation tank from the outlet of the oxidation ditch. The treated water is discharged from the outlet of the secondary sedimentation tank, and the sludge at the bottom flows back to the oxidation ditch. In addition to the external sludge return, there is also a very ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02C02F3/20
CPCY02W10/10
Inventor 崔炜张建安张劲杨永军
Owner SHAANXI QINGYUAN ENVIRONMENT INDAL
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