Integrated denitrification and phosphorus removal device for treating farmland drainage in situ

A technology for nitrogen and phosphorus removal and farmland drainage, which is applied in the field of water pollution control and ecological restoration, can solve problems such as unsatisfactory nitrogen and phosphorus removal effects, single interception and purification methods, and adverse effects of farmland drainage, so as to facilitate field water and save water. Irrigation water and the effect of reducing non-point source pollution

Inactive Publication Date: 2019-07-12
浙江融信环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the shortcomings of single interception and purification method in the prior art, unsatisfactory denitrification and phosphorus removal ef...

Method used

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  • Integrated denitrification and phosphorus removal device for treating farmland drainage in situ
  • Integrated denitrification and phosphorus removal device for treating farmland drainage in situ

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An integrated nitrogen and phosphorus removal device for in-situ treatment of farmland drainage, such as figure 1 As shown, the nitrogen and phosphorus removal device body 1 is included, and the nitrogen and phosphorus removal device body 1 is buried and installed on the field ridge or the edge of the ditch near the farmland drain. The nitrogen and phosphorus removal device body 1 passes through four partitions 2. From left to right, it is divided into water inlet sedimentation tank 11, biological contact oxidation tank 12, struvite reaction recovery tank 13, adsorption denitrification purification tank 14 and outlet water purification tank 15, water inlet sedimentation tank 11, biological contact oxidation tank 12, The upper part of the adsorption denitrification purification tank 14 and the effluent purification tank 15 is provided with a nitrogen-fixing matrix type plant cell 16, and the upper part of the struvite reaction recovery pool 13 is provided with an alkaline...

Embodiment 2

[0038] An integrated nitrogen and phosphorus removal device for in-situ treatment of farmland drainage, such as figure 1 As shown, the nitrogen and phosphorus removal device body 1 is included, and the nitrogen and phosphorus removal device body 1 is buried and installed on the field ridge or the edge of the ditch near the farmland drain. The nitrogen and phosphorus removal device body 1 passes through four partitions 2. From left to right, it is divided into water inlet sedimentation tank 11, biological contact oxidation tank 12, struvite reaction recovery tank 13, adsorption denitrification purification tank 14 and outlet water purification tank 15, water inlet sedimentation tank 11, biological contact oxidation tank 12, The upper part of the adsorption denitrification purification tank 14 and the effluent purification tank 15 is provided with a nitrogen-fixing matrix type plant cell 16, and the upper part of the struvite reaction recovery pool 13 is provided with an alkaline...

Embodiment 3

[0050] An integrated nitrogen and phosphorus removal device for in-situ treatment of farmland drainage, such as figure 1 As shown, the nitrogen and phosphorus removal device body 1 is included, and the nitrogen and phosphorus removal device body 1 is buried and installed on the field ridge or the edge of the ditch near the farmland drain. The nitrogen and phosphorus removal device body 1 passes through four partitions 2. From left to right, it is divided into water inlet sedimentation tank 11, biological contact oxidation tank 12, struvite reaction recovery tank 13, adsorption denitrification purification tank 14 and outlet water purification tank 15, water inlet sedimentation tank 11, biological contact oxidation tank 12, The upper part of the adsorption denitrification purification tank 14 and the effluent purification tank 15 is provided with a nitrogen-fixing matrix type plant cell 16, and the upper part of the struvite reaction recovery pool 13 is provided with an alkaline...

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Abstract

The invention relates to the field of water pollution control and ecological restoration, and discloses an integrated denitrification and phosphorus removal device for treating farmland drainage in situ. The integrated denitrification and phosphorus removal device for treating the farmland drainage in situ comprises a denitrification and phosphorus removal device body (1); the denitrification andphosphorus removal device body (1) is mounted beside a field ridge or a ditch ridge close to a farmland drainage outlet in an embedding manner; the denitrification and phosphorus removal device body (1) is partitioned into a water inlet sedimentation pond (11), a biological contact oxidation pond (12), a struvite reaction recovery pond (13), an adsorption denitrification purification pond (14) anda water outlet purification pond (15) in sequence from left to right through four partition plates (2); according to the integrated denitrification and phosphorus removal device for treating the farmland drainage in situ, the lost nutrients are intercepted, purified and recycled at the farmland drainage outlet locally according to the characteristics of nutrient loss and water and soil loss at the farmland drainage outlet, so that non-point source pollution of a farmland can be reduced; the recovery of the lost nutrients can also be realized; the management of field moisture of a farmer can also be facilitated; irrigation water is reduced; certain economic benefit is produced.

Description

technical field [0001] The invention relates to the fields of water pollution control and ecological restoration, in particular to an integrated nitrogen and phosphorus removal device for in-situ treatment of farmland drainage. Background technique [0002] Farmland ditches are the necessary channels for farmland drainage and surface runoff to flow into rivers, reservoirs, lakes and other natural water bodies, and play a very important role in reducing agricultural non-point source pollution; it is reported that 65% of farmland in the United States and Canada use ditches Reduce agricultural source pollution, but for a long time in my country, farmland construction has focused on the irrigation and drainage functions of farmland ditches (three-sided light structure), ignoring its role in ecological environment protection. [0003] In recent years, my country has begun to attach importance to the environmental protection and ecological functions of farmland ditches. The "Nation...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30
CPCC02F1/28C02F3/02C02F3/327C02F9/00C02F2001/007C02F2001/5218C02F2101/30
Inventor 曹玉成许佳霖苑永魁谢成浩汪奇
Owner 浙江融信环保科技有限公司
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