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Device and method for treating pond culture sewage by combining physics and organisms

A technology for aquaculture sewage and treatment methods, which is applied in biological water/sewage treatment, filtration treatment, chemical instruments and methods, etc., can solve the problem of inability to safely and effectively remove nitrogen, phosphorus and impurities in pond aquaculture sewage, and achieve good removal effect. , Improve the effect of nitrogen removal efficiency

Pending Publication Date: 2021-02-05
NANJING UNIV OF INFORMATION SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention proposes a device and method for treating pond aquaculture sewage by combining physics and biology, aiming to overcome the technical problem that the water treatment methods in the prior art cannot safely and effectively remove nitrogen, phosphorus and impurities in pond aquaculture sewage, and provide a A device and method for treating pond aquaculture sewage by combining physics and biology; through the rational arrangement of primary biological reaction area, phosphorus and nitrogen conversion area and secondary biological reaction area, the cleanliness of pond aquaculture sewage can be improved safely and effectively

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  • Device and method for treating pond culture sewage by combining physics and organisms
  • Device and method for treating pond culture sewage by combining physics and organisms

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Embodiment 1

[0039] A combination of physical and biological treatment of pond aquaculture sewage equipment in this embodiment includes a primary biological reaction zone 200, a phosphorus-nitrogen conversion zone 400, and a secondary biological reaction zone 300; the secondary biological reaction zone 300 is set in the primary biological Between the reaction zone 200 and the phosphorus-nitrogen conversion zone 400; the bottom of the primary bioreaction zone 200 is provided with a primary bioreaction filler 211, and the secondary bioreaction zone 300 is provided with a secondary bioreaction filler 303, the two The side of the secondary biological reaction zone 300 close to the primary biological reaction zone 200 is the first filter layer 301 , and the side of the secondary biological reaction zone 300 close to the phosphorus-nitrogen conversion zone 400 is the second filter layer 302 . By setting the secondary biological reaction zone 300 between the primary biological reaction zone 200 an...

Embodiment 2

[0048] The embodiment of this embodiment is basically the same as that of Example 1, the main difference being that it is installed and placed in a river crab pond culture base lake, the concentration of ammonia nitrogen in the pond drainage can reach 5mg / L, and the effluent is turbid, and water spinach is planted in the biological pond in advance, and Place 5mg / L Chlorella and 0.75mg / L Scenedesmus obliquus, add microbial flocculants and coagulants after water intake, and place PHBV materials in the primary biological reaction area 200 in advance, and place PHBV materials in the secondary biological reaction area 300 Prevent K3 ring packing. Specific process: pond drainage enters the pretreatment area 100, impurities in the water and pond bottom quality are flocculated and precipitated, and the transparency is significantly improved. Then the sewage enters the primary biological reaction area 200 to remove nitrogen and phosphorus nutrients through microorganisms, and passes thr...

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Abstract

The invention discloses a device and a method for treating pond culture sewage by combining physics and organisms, and belongs to the technical field of sewage treatment. The device comprises a primary biological reaction zone, a phosphorus-nitrogen conversion zone and a secondary biological reaction zone, the secondary biological reaction zone is arranged between the primary biological reaction zone and the phosphorus-nitrogen conversion zone; wherein a primary biological reaction filler is arranged at the bottom of the primary biological reaction zone, a secondary biological reaction filleris arranged in the secondary biological reaction zone, a first filter layer is arranged on one side, close to the primary biological reaction zone, of the secondary biological reaction zone, and a second filter layer is arranged on one side, close to the phosphorus-nitrogen conversion zone, of the secondary biological reaction zone. The device has an obvious removal effect on nitrogen and phosphorus in the pond culture sewage, physical materials and biological means are combined for removal, adverse effects on water are avoided, the used physical materials are wide in source and can be prepared on a large scale, and the floating plant water spinach further has certain economic value.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and more specifically relates to a device and method for treating pond aquaculture sewage in combination of physics and biology. Background technique [0002] In recent years, the high-density intensive aquaculture model has developed rapidly. While bringing higher farming benefits, it has also led to serious nutrient effluents. Direct discharge into water will cause eutrophication of water bodies, which will then enter sewage treatment plants for treatment It will also greatly increase the cost, and the treatment of aquaculture sewage has become a major problem. [0003] The proportion of nitrogen, phosphorus, ammonia nitrogen and nitrite nitrogen in aquaculture sewage is also relatively high, but compared with other livestock breeding sewage, aquaculture sewage does not have so many suspended solids and residues, and the content of nitrogen and phosphorus is relatively high. This has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/10C02F101/16
CPCC02F1/001C02F3/00C02F3/32C02F3/322C02F9/00C02F2101/105C02F2101/166
Inventor 张哲张毅敏高月香赖秋英张涛朱月明陈婷于江华
Owner NANJING UNIV OF INFORMATION SCI & TECH