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Preparation method of purification agent for river crab culture water

A technology for aquaculture water body and purifying agent, which is applied in chemical instruments and methods, water pollutants, animal husbandry wastewater treatment and other directions, can solve problems such as inability to effectively improve water quality, poor purification effect, etc., achieve good purification of crab breeding water body, easy operation , the effect of improving the ecological environment of aquaculture

Inactive Publication Date: 2018-09-21
金华市呗力水产养殖技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the fertilizer purifying agent purifies the aquaculture water body through a single biological method, which cannot effectively improve the water quality, and the purification effect is relatively poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The preparation method of the water purification agent for river crab culture comprises the following preparation steps: first, calcium gluconate is ground into powder and chitosan is mixed uniformly according to the weight ratio to obtain a mixed powder; then EM biological bacteria liquid is added, and the temperature is controlled at 40°C Stir for 30 minutes at a rotational speed of 200 rpm; finally add a composite flocculant and continue stirring for 1 hour to obtain the finished water purifier for river crab breeding. The prepared purification agent for river crab cultivation can not only supplement the calcium ions required for shelling of river crabs, but also effectively decompose the organic waste in the water, remove ammonia nitrogen, hydrogen sulfide, ammonium nitrite, heavy metal ions and other harmful substances in the water, and improve the cultivation efficiency. Ecological environment, increase dissolved oxygen in water, kill or inhibit pathogenic microorg...

Embodiment 2

[0028] The preparation method of the water body purifier for river crab culture comprises the following preparation steps: firstly, calcium gluconate is ground into powder and chitosan is uniformly mixed according to a weight ratio of 1:0.7 to obtain a mixed powder; then EM biological bacteria liquid is added to control the temperature Stir at 50°C for 25 minutes at a speed of 400 rpm; finally add a certain amount of composite flocculant and continue stirring for 1 hour to obtain the finished water purifier for river crab culture.

[0029] The weight ratio of the above-mentioned EM biological bacteria liquid to the mixed powder is 5:1.

[0030] The above-mentioned EM biological bacteria were anaerobically rejuvenated before use. The specific method was as follows: 10 parts of EM stock solution, 10 parts of molasses and 90 parts of distilled water were mixed and prepared. Take the pH value, when the pH drops below 3.5 and has a sweet and sour taste, the EM biological bacteria h...

Embodiment 3

[0035] The preparation method of water body purifier for river crab culture comprises the following preparation steps: first, calcium gluconate is ground into powder and chitosan is uniformly mixed according to a weight ratio of 1:0.6 to obtain a mixed powder; then EM biological bacteria liquid is added, and the temperature is controlled at Stir at 45°C for 25min at a speed of 300rpm / min; finally add a certain amount of composite flocculant and continue stirring for 1.5h to obtain the finished water purifier for river crab culture.

[0036] The weight ratio of the above-mentioned EM biological bacteria liquid to the mixed powder is 6:1.

[0037] The above-mentioned EM biological bacteria were anaerobically rejuvenated before use. The specific method was as follows: 6 parts of EM stock solution, 6 parts of molasses and 95 parts of distilled water were mixed and prepared. Take the pH value, when the pH drops below 3.5 and has a sweet and sour taste, the EM biological bacteria ha...

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Abstract

The invention discloses a preparation method of a purification agent for river crab culture water. The preparation method comprises the following steps: firstly, grinding calcium gluconate into powder, uniformly mixing the powder with chitosan; then, adding EM (Effective Microorganism) biological bacterial liquid, and performing stirring; and finally, adding a composite flocculant, and performingcontinuous stirring to obtain a finished product of the purification agent for river crab culture water, wherein the composite flocculant is prepared from the following raw material components in parts by weight: 5-8 parts of ferrous sulfate, 20-30 parts of polyacrylamide, 9-14 parts of modified attapulgite and 2-5 parts of diisopinyl borane. The preparation method of the purification agent for river crab culture water, disclosed by the invention, is simple and feasible, easy to operate and convenient to industrialize; and the prepared purification agent for river crab culture water not only can effectively remove harmful substances in water, improve the ecological environment for culture and enhance the immunity of river crabs but also can supplement calcium ions required for river crab shelling, thereby being favorable for healthy growth of the river crabs and promoting the development of river crab culture.

Description

technical field [0001] The invention relates to the field of environmental protection biotechnology, in particular to a preparation method of a river crab breeding water purifier. Background technique [0002] With the development of the economy and the improvement of people's living standards, more and more aquatic products have entered thousands of households. Because of their tender meat, delicious taste and extremely rich nutrition, river crabs are very popular among the public. At the same time, river crabs have strong adaptability , the wide range of breeding makes the scale of its farming larger and larger, but with the increase of feed dosage and the increase of river crab excrement, the organic matter and nitrogen and phosphorus in the water increase, the water quality is turbid, the suspended solids increase, and the water quality is eutrophic It has brought great harm to the growth of river crabs and caused a series of disease problems. Therefore, in order to ens...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F101/20C02F103/20
CPCC02F3/341C02F3/347C02F2101/20C02F2103/20
Inventor 孙弋博
Owner 金华市呗力水产养殖技术有限公司
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