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A kind of concentrated 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: 2022-07-26
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

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  • A kind of concentrated contiguous pond culture tail water treatment method

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Effect test

Embodiment 1

[0024] The treatment of tail water from aquaculture in concentrated contiguous ponds includes the following steps:

[0025] (1) the natural precipitation of the culturing tail water, the gained supernatant is introduced into the reaction tank;

[0026] (2) adding nitrifying bacteria to the supernatant liquid obtained in step (1) and aerating, in the supernatant liquid after 1.5 days, according to the volume ratio of 0.07: 1, the supernatant liquid was fed into ozone for treatment for 11h, and filtered to obtain a filtrate;

[0027] (3) The composite bacterial agent is composed of Rhodopseudomonas marsh, Bacillus subtilis and Candida utilis according to the mass ratio of 2:1:4, and then the nano oyster shell powder, potassium silicate, bentonite, nano TiO 2 and the composite bacterial agent according to the mass ratio of 12: 4: 6.5: 6: 0.3 to obtain a water treatment agent, adding the water treatment agent to the filtrate obtained in step (2), adding 3g in every liter of the fi...

Embodiment 2

[0029] The steps for the treatment of the tail water from aquaculture in the concentrated contiguous ponds are as follows:

[0030] (1) the natural precipitation of the culturing tail water, the gained supernatant is introduced into the reaction tank;

[0031] (2) adding nitrifying bacteria to the supernatant liquid obtained in step (1) and aerating, and after 1 day in the supernatant liquid according to the volume ratio of 0.05: 1, feed into ozone for treatment for 10h, and filter to obtain a filtrate;

[0032] (3) The compound bacterial agent is composed of Rhodopseudomonas marsh, Bacillus subtilis and Candida utilis according to the mass ratio of 1:1:5, and then the nano oyster shell powder, potassium silicate, bentonite, nano TiO 2 and the composite bacterial agent according to the mass ratio of 10:5:5:8:0.5 to be mixed to obtain a water treatment agent, the water treatment agent is added to the filtrate obtained in step (2), 2g is added in every liter of the filtrate, sti...

Embodiment 3

[0034] The treatment of tail water from aquaculture in concentrated contiguous ponds includes the following steps:

[0035] (1) the natural precipitation of the culturing tail water, the gained supernatant is introduced into the reaction tank;

[0036] (2) adding nitrifying bacteria to the supernatant obtained in step (1) and aerating, and after 2 days, the supernatant was fed with ozone at a volume ratio of 0.1:1 for treatment for 12h, and filtered to obtain a filtrate;

[0037] (3) The composite bacterial agent was composed of Rhodopseudomonas marsh, Bacillus subtilis and Candida utilis according to the mass ratio of 3:1:3, and then the nano oyster shell powder, potassium silicate, bentonite, nano TiO 2 and the composite bacterial agent according to the mass ratio of 15: 3: 8: 4: 0.1 is mixed to obtain a water treatment agent, the water treatment agent is added to the filtrate obtained in step (2), 4g is added in every liter of the filtrate, stirred, and after 2 days, filter...

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Abstract

The invention discloses a method for treating aquaculture tail water in a concentrated contiguous pond, which belongs to the technical field of aquaculture tail water treatment. treatment, then pass ozone into the filtrate, filter, add a water treatment agent to the filtrate for treatment, and filter again after completion; the present invention firstly precipitates the culture tail water, removes solid wastes such as large particles of bait, and then sequentially adopts Nitrifying bacteria and ozone are used for treatment to remove most of ammonia nitrogen and COD in the water body, and further use of nano-oyster shell powder, potassium silicate, bentonite, nano-TiO 2 It is treated with the water treatment agent of the compound bacterial agent to further remove ammonia nitrogen and COD, and at the same time effectively remove sulfide and phosphate in the water body, so that the content of COD, ammonia nitrogen, sulfide and phosphate in the final water body can reach the level of aquaculture. Water standard, can be returned to the pond for recycling.

Description

technical field [0001] The invention belongs to the technical field of aquaculture tail water treatment, and in particular relates to a method for the treatment of aquaculture tail water in a concentrated contiguous pond. Background technique [0002] With the popularization of the concept of green agricultural development, the problem of tailwater pollution 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 aquaculture tailwater to the surrounding environment. The current tailwater treatment methods include physical treatment, chemical treatment, physical-chemical treatment and biological treatment. . However, this not only results in a waste of freshwater resources, but also may cause eutrophication of the surrounding waters. Especially for aquaculture in concentrated contiguous ponds, the scale of aquaculture is large and ...

Claims

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Application Information

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Patent Type & Authority Patents(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