Treatment device for purifying farmland recession water

A treatment device and farmland technology, applied in water/sewage treatment, multi-stage water/sewage treatment, biological water/sewage treatment, etc., can solve the loss of economic benefits of adding carbon sources, increase the area of ​​treatment equipment, Without taking into account damage and other issues, the effect of avoiding insufficient carbon sources, reducing operation and maintenance costs, and reducing energy consumption costs

Active Publication Date: 2021-11-09
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this not only increases the area occupied by the treatment equipment, but also increases the loss of economic benefits brought about by the addition of carbon sources, and this process does not take into account the toxicity of the residual pesticides in the farmland backwater to the microorganisms in the sewage treatment. damage

Method used

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  • Treatment device for purifying farmland recession water
  • Treatment device for purifying farmland recession water
  • Treatment device for purifying farmland recession water

Examples

Experimental program
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Embodiment 1

[0038] Such as Figure 1-3 As shown in the figure, a treatment device for purifying farmland receding water includes a regulating tank 1, a filter tank 2, and a microalgae biological reaction tank 3 connected in sequence. The whole device can be composed of reinforced concrete, and the material selection is convenient and easy to obtain, and it is easy to combine with ecological ditches .

[0039] Regulating pool 1 is used to buffer the inflow of farmland receding water; regulating tank 1 is provided with water inlet pipe 11, No. 1 water outlet pump 12 and No. 1 water outlet pipe 13, and the farmland receding water enters regulating pool 1 through inlet pipe 11 , the buffered farmland retreat water is lifted to the filter tank 2 through the No. 1 water outlet pump 12 and the No. 1 water outlet pipe 13. The setting of the No. 1 water outlet pump 12 can regularly and quantitatively replenish water under the control of the central control system, and the water inlet pipe 11 Valv...

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Abstract

The invention relates to the field of environmental water treatment and protection, and provides a treatment device for purifying farmland recession water. The device comprises an adjusting tank, a filtering tank and a microalgae biological reaction tank which are connected in sequence, wherein farmland recession water enters the adjusting tank firstly and then is lifted into the filtering tank through a water suction pump, the filler of the filtering tank is mainly composed of activated carbon and zeolite, after majority of toxicity of pesticides in the farmland recession water is removed, the farmland recession water enters the microalgae biological reaction tank from the filtering water tank, and nitrogen and phosphorus in the water are removed through the absorption effect of chlorella. According to the invention, the defect that the treatment effect of an activated sludge method and a biological membrane method is poor due to the fact that farmland water recession COD is low is effectively overcome.

Description

technical field [0001] The invention belongs to the technical field of environmental water treatment and protection, and in particular relates to a treatment device for purifying farmland backwater. Background technique [0002] Non-point source pollution of farmland receding water has replaced point source pollution as the most important source of river water environmental pollution in irrigation areas. The pollutants carried are complex and have various pollution export channels, which seriously threaten the health of river water. [0003] At present, the centralized treatment of farmland water return is mainly based on activated sludge, artificial wetland and other processes. However, due to the high nitrogen and phosphorus content and poor biodegradability of farmland water return, such processes need sufficient carbon sources to operate normally. , therefore, in the process of dealing with farmland dewatering, it is necessary to add enough carbon source at the same time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/001C02F3/322C02F1/44C02F1/281C02F2201/009Y02W10/10
Inventor 崔益斌陈捷丁程成钱进
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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