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Centralized contiguous pond culture tail water treatment method

A treatment method and technology of water treatment agent, which are applied in the fields of animal husbandry wastewater treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc., can solve the problems of high-efficiency treatment of difficult pollutants, affecting the growth and reproduction of fish, etc.

Active Publication Date: 2022-01-18
济宁市任城区双瑞家庭农场
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in order to make the treated tail water meet the requirements of recycling, it is necessary to make the COD, ammonia nitrogen, sulfide and phosphate in the treated tail water meet the use requirements (although phosphate is important for fish It is not toxic, but its high content will lead to a large number of algal blooms, which will indirectly affect the growth and reproduction of fish), and the current treatment methods for aquaculture tail water are difficult to achieve synergistic and efficient treatment of the above pollutants

Method used

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  • Centralized contiguous pond culture tail water treatment method

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Effect test

Embodiment 1

[0024] The treatment of the tail water of the centralized contiguous pond culture includes the following steps:

[0025] (1) The cultured tail water is naturally precipitated, and the resulting supernatant is introduced into the reaction tank;

[0026] (2) adding nitrifying bacteria to the supernatant obtained in step (1) and aerating, after 1.5 days, passing ozone into the supernatant according to the volume ratio of 0.07: 1 to process for 11 hours, filtering to obtain the filtrate;

[0027] (3) Rhodopseudomonas palustris, Bacillus subtilis, and Candida utilis were composed of composite bacterial agent according to the mass ratio of 2:1:4, and then nanometer oyster shell powder, potassium silicate, bentonite, nanometer TiO 2 and the composite bacterial agent are mixed according to the mass ratio of 12:4:6.5:6:0.3 to obtain a water treatment agent, the water treatment agent is added to the filtrate obtained in step (2), 3g is added to each liter of filtrate, stirred, and after...

Embodiment 2

[0029] The treatment of the tail water of the centralized contiguous pond culture is as follows:

[0030] (1) The cultured tail water is naturally precipitated, and the resulting supernatant is introduced into the reaction tank;

[0031] (2) Add nitrifying bacteria to the supernatant obtained in step (1) and aerate, and after 1 day, pass ozone into the supernatant according to the volume ratio of 0.05: 1 for treatment for 10 hours, filter to obtain the filtrate;

[0032] (3) Rhodopseudomonas palustris, Bacillus subtilis, and Candida utilis were used to form a composite bacterial agent according to the mass ratio of 1:1:5, and then nanometer oyster shell powder, potassium silicate, bentonite, nanometer TiO 2 and composite bacteria agent according to the mass ratio of 10:5:5:8:0.5 mixed to obtain a water treatment agent, the water treatment agent is added to the filtrate obtained in step (2), add 2g per liter of filtrate, stir, and after 3 days, filter again , to obtain the tre...

Embodiment 3

[0034] The treatment of the tail water of the centralized contiguous pond culture includes the following steps:

[0035] (1) The cultured tail water is naturally precipitated, and the resulting supernatant is introduced into the reaction tank;

[0036] (2) Add nitrifying bacteria to the supernatant obtained in step (1) and aerate, and after 2 days, pass ozone into the supernatant according to the volume ratio of 0.1:1 to process for 12 hours, filter to obtain the filtrate;

[0037] (3) Rhodopseudomonas palustris, Bacillus subtilis, and Candida utilis were used to form a composite bacterial agent according to the mass ratio of 3:1:3, and then nanometer oyster shell powder, potassium silicate, bentonite, nanometer TiO 2 and the composite bacterial agent are mixed according to the mass ratio of 15:3:8:4:0.1 to obtain a water treatment agent, the water treatment agent is added to the filtrate obtained in step (2), 4g is added to each liter of filtrate, stirred, and after 2 days, f...

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Abstract

The invention discloses a centralized continuous pond culture tail water treatment method and belongs to the technical field of aquaculture tail water treatment. The method comprises the following steps of: precipitating culture tail water; adding nitrifying bacteria into obtained supernate, carrying out aeration treatment; introducing ozone, and performing filtering; adding a water treatment agent into filtrate to treat filtrate; and performing filtering again. According to the method, the culture tail water is precipitated, solid waste such as large-particle residual feed in the culture tail water is removed, and then the nitrifying bacteria and ozone are sequentially adopted to treat the culture tail water, so that most of ammonia nitrogen and COD in the water body are removed; a water treatment agent containing nano oyster shell powder, potassium silicate, bentonite, nano TiO2 and a complex microbial inoculant is further adopted to treat the water body, so that the ammonia nitrogen and COD are further removed, sulfide and phosphate in the water body are effectively removed at the same time; and therefore, the content of the COD, ammonia nitrogen, sulfide and phosphate in the finally treated water body reaches the aquaculture water standard, and the water body can be returned to a pond so as to be recycled.

Description

technical field [0001] The invention belongs to the technical field of aquaculture tail water treatment, and in particular relates to a method for treating the tail water of centralized contiguous pond aquaculture. Background technique [0002] With the popularization of the concept of green agricultural development, the pollution of tail water in the aquaculture industry has increasingly become the focus of research. To ensure the sustainable and healthy development of the aquaculture industry, it is necessary to reduce the pollution of the tail water of aquaculture to the surrounding environment. The tail water treatment methods currently adopted include physical treatment methods, chemical treatment methods, physical chemical treatment methods and biological treatment methods, etc., and after the tail water is treated, it is discharged into natural waters, and new fresh water is added to the aquaculture pond. . However, this not only causes a waste of fresh water resourc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/20C02F101/16C02F101/10
CPCC02F9/00C02F2103/20C02F2001/007C02F3/02C02F1/78C02F1/001C02F3/34C02F2101/16C02F2101/101C02F2101/105
Inventor 孟娟吴广州王妹马迎丽蔡新华石蕊
Owner 济宁市任城区双瑞家庭农场