Fortified straight-flow biological contact oxidation pond and operation method thereof

A biological contact and oxidation tank technology, applied in chemical instruments and methods, sustainable biological treatment, aerobic process treatment, etc., can solve the problems of long residence time, low treatment capacity, turbid effluent, etc., to reduce effluent SS and investment. And the effect of low operating cost and improving purification efficiency

Inactive Publication Date: 2016-01-06
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of existing biological contact oxidation tanks such as low processing capacity, turbid effluent, and long residence time, the present invention provides an enhanced direct-flow biological contact oxidation tank that can significantly improve water purification efficiency and effectively avoid turbid effluent. A kind of operation method of this oxidation pond

Method used

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  • Fortified straight-flow biological contact oxidation pond and operation method thereof
  • Fortified straight-flow biological contact oxidation pond and operation method thereof
  • Fortified straight-flow biological contact oxidation pond and operation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] The enhanced once-through type biological contact oxidation pond of the present embodiment has a structure such as figure 1 and figure 2 As shown, including the pool body 1 made of concrete, the cross section of the pool body 1 is rectangular, and the aspect ratio is 1:1-2:1. According to the actual situation, the effective water depth is 4.4m-4.9m. In the tank body 1, there are aeration area, packing layer and water stabilizing layer from bottom to top. The height ratio of aeration area, packing layer and water stabilizing layer is about 1:4:1.2. After a lot of experiments, it has been confirmed that this ratio can The present invention obtains the best purification treatment effect. The outside of the pool body 1 is provided with a water inlet pipe 6 at the aeration area, the outside of the pool body 1 is provided with a drainage pipe 7 at the water stabilization layer, and the bottom of the pool body 1 is provided with a sewage pipe 8 .

[0024] The bottom of the ...

Embodiment 2

[0028] The difference between this embodiment and Embodiment 1 is that the pool body 1 is made of PVC (polyvinyl chloride), the effective water depth of the pool body 1 is 1.3m-1.8m, the height of the aeration zone is 0.2m-0.3m, and the filler The height of the layer is 0.8m-1.2m, and the height of the water stabilization layer is 0.24m-0.36m. The plant growth frame 4 in the stable water layer adopts Figure 4 As shown in the planting disc-shaped support, plants such as cattails and water turtles are planted on the support.

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Abstract

The invention discloses a fortified straight-flow biological contact oxidation pond and an operation method thereof. The oxidation pond comprises a pond body, the cross section of the pond body is rectangular, the length-width ratio is (1:1)-(2:1), the pond body is internally sequentially provided with an aeration area, a packing layer and a water stabilization layer from bottom to top, and the height ratio of the aeration area, the packing layer and the water stabilization layer is 1:4:1.2; the outer side of the pond body is provided with a water inlet pipe at the aeration area and provided with a water outlet pipe at the water stabilization layer, and the bottom of the pond body is provided with a blowdown pipe; an aerator is arranged in the aeration area; a packing frame fixed on the inner wall of the pond body is arranged in the packing layer, and packing is hung on the packing frame; and a plant growth frame fixed on the inner wall of the pond body is arranged in the water stabilization layer. When the oxidation pond is operating, aquatic plants are planted on the plant growth frame in the water stabilization layer so as to form plant fortification, therefore, the sewage purification effect is enhanced, the SS of effluent water can be significantly reduced, a situation that the effluent water is turbid is avoided, the sewage retention time is reduced, and the purification efficiency is improved; and the oxidation pond is small in occupied space, convenient to operate and maintain, and low in investment and operation costs.

Description

technical field [0001] The invention relates to a biological contact oxidation tank for treating industrial and domestic sewage and an operation method thereof, belonging to the technical field of sewage treatment. Background technique [0002] The biological contact oxidation pond is the central processing structure of the device used in the biological contact oxidation method. The biological contact oxidation method refers to setting a soft filler (as a biofilm carrier) in the aeration tank. When the oxygenated wastewater flows through the filler at a certain flow rate and contacts the biofilm, the biofilm and the microorganisms in the suspended activated sludge are used to The method of the combined action of purifying sewage. The biological contact oxidation method can be applied to the treatment, and all have achieved good benefits. At the same time, because the process has a series of advantages such as simple structures, convenient maintenance and management, no nee...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/02
CPCY02W10/10
Inventor 张建董上上张成禄王希王正德孟启炜吕晟元
Owner SHANDONG UNIV
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