A kind of recycling method of the rear water of aquaculture of Fangban Dongfeng snail

Abstract

According to the method for recycling aquaculture tail water of the present invention, a sand falling pond and a sedimentation filter tank are arranged outside the breeding pond. The sand falling pond can precipitate impurities in the aquaculture tail water, and part of the settled aquaculture tail water can be directly filtered by sand. The other part is purified by the sedimentation filter tank and filtered by the sand filter tank, and then recycled into the aquaculture tank to realize the recycling of the aquaculture tail water. By adopting the method for recycling and utilizing the rearing water of aquaculture, the disease incidence rate of Dongfeng snail is reduced from the original 41.54% to 6.15%, and the survival rate of Dongfeng snail cultivation can be increased from the original 30.2% to the original 30.2%. More than 89.7%, reduce the risk of breeding, and can reduce the pollution of aquaculture tail water to the sea area environment, realize the new healthy management mode of Dongfeng snail with energy saving, water saving and emission reduction, and promote the healthy and sustainable development of the Dongfeng snail industry.

Description

technical field

[0001] The invention belongs to the field of aquaculture, and in particular relates to a method for recycling tail water of aquaculture of Dongfeng snails. Background technique

[0002] Babylonia spp. is referred to as Dongfeng snail, commonly known as Wang snail, flower snail, and phoenix snail. The market is in short supply. In recent years, Dongfeng snail farming has the advantages of high value, low risk, low technical difficulty in daily feeding and management, and simple operation. With economic development and social development, it has now become a new breed of marine shellfish in Hainan, Guangdong and Guangxi.

[0003] With the improvement of people's awareness of environmental protection, the untreated tail water is discharged directly into the sea, causing pollution in the Dongfeng snail aquaculture area and greatly affecting the sustainable development of the local aquaculture industry. SUMMARY OF THE INVENTION

[0004] The technical scheme o...

Examples

Embodiment 1

[0028] A method for recycling tail water from the cultivation of Fangban Dongfeng snails, comprising the following steps:

[0029] In the process of cultivating the Dongfeng snail, the seedlings of Dongfeng snail are placed in the breeding pond at a reasonable stocking density, and the bait is regularly fed to carry out corresponding daily management; and a drainage channel 2 is set outside the breeding pond 1. Install grating on the drain. A sand-falling pool 3 is set at the end of the drainage channel, and the aquaculture tail water is discharged from the culture pool into the sand-falling pool. 30% of the water passes through the sand-gravel layer 31 at the bottom of the sand-falling pool. The diameter of the sand and gravel is 0.3-0.8mm. It is directly pumped back to the sand filter 4, and the water after sand filtration flows directly back to the culture pond; the rest of the water flows into the sedimentation filter 5, and after sedimentation and filtration, it is pumped...

Embodiment 2

[0038] A method for cultivating oriental snails, comprising the following steps:

[0039] After the sea water in the sea area is filtered by the sand filter, it is discharged into the breeding pond for the cultivation of the oriental snail. After the seedlings of the oriental snail are put in, the bait is regularly fed according to the breeding method of the oriental snail, and the corresponding daily management is carried out. . The tail water produced in the breeding process is recycled by the method described above. In order to ensure the water quality of the seawater entering the breeding pond and the sand pond, the water quality can be measured in advance. The excess tail water from the sedimentation filter tank, or the aquaculture water after the harvest of the Fangban Dongfeng snail, can also be discharged into the sea area from the sedimentation filter tank after being treated. In order to avoid polluting the environment of the sea area, it is also necessary to incre...

technical field

[0001] The invention belongs to the field of aquaculture, and in particular relates to a method for recycling tail water of aquaculture of Dongfeng snails. Background technique

[0002] Babylonia spp. is referred to as Dongfeng snail, commonly known as Wang snail, flower snail, and phoenix snail. The market is in short supply. In recent years, Dongfeng snail farming has the advantages of high value, low risk, low technical difficulty in daily feeding and management, and simple operation. With economic development and social development, it has now become a new breed of marine shellfish in Hainan, Guangdong and Guangxi.

[0003] With the improvement of people's awareness of environmental protection, the untreated tail water is discharged directly into the sea, causing pollution in the Dongfeng snail aquaculture area and greatly affecting the sustainable development of the local aquaculture industry. SUMMARY OF THE INVENTION

[0004] The technical scheme o...

Examples

Embodiment 1

[0028] A method for recycling tail water from the cultivation of Fangban Dongfeng snails, comprising the following steps:

[0029] In the process of cultivating the Dongfeng snail, the seedlings of Dongfeng snail are placed in the breeding pond at a reasonable stocking density, and the bait is regularly fed to carry out corresponding daily management; and a drainage channel 2 is set outside the breeding pond 1. Install grating on the drain. A sand-falling pool 3 is set at the end of the drainage channel, and the aquaculture tail water is discharged from the culture pool into the sand-falling pool. 30% of the water passes through the sand-gravel layer 31 at the bottom of the sand-falling pool. The diameter of the sand and gravel is 0.3-0.8mm. It is directly pumped back to the sand filter 4, and the water after sand filtration flows directly back to the culture pond; the rest of the water flows into the sedimentation filter 5, and after sedimentation and filtration, it is pumped...

Embodiment 2

[0038] A method for cultivating oriental snails, comprising the following steps:

[0039] After the sea water in the sea area is filtered by the sand filter, it is discharged into the breeding pond for the cultivation of the oriental snail. After the seedlings of the oriental snail are put in, the bait is regularly fed according to the breeding method of the oriental snail, and the corresponding daily management is carried out. . The tail water produced in the breeding process is recycled by the method described above. In order to ensure the water quality of the seawater entering the breeding pond and the sand pond, the water quality can be measured in advance. The excess tail water from the sedimentation filter tank, or the aquaculture water after the harvest of the Fangban Dongfeng snail, can also be discharged into the sea area from the sedimentation filter tank after being treated. In order to avoid polluting the environment of the sea area, it is also necessary to incre...

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