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Device for purifying breeding water of net box and application thereof

A technology of cage culture and cage, which is applied in the field of devices for purifying cage culture water, can solve the problems of limited quantity and slow growth rate, and achieve the effects of low cost, good purification effect, and simple and easy operation.

Active Publication Date: 2010-01-06
SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since nitrifying bacteria are chemoautotrophic bacteria, their growth rate is very slow, so the reproduction of nitrifying bacteria has become one of the key steps in purifying sewage. However, the limited number of nitrifying bacteria in water has become a bottleneck in purifying sewage, so it is urgent Need a kind of method that can make nitrifying bacteria multiply thereby can purify aquaculture water efficiently

Method used

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  • Device for purifying breeding water of net box and application thereof
  • Device for purifying breeding water of net box and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Two test pools with a size of 4×3×2m were selected as the experimental group and the control group respectively, and the fish ponds were soaked and disinfected with 1:1000 potassium permanganate before the test. 40 rock perch with a body length of about 15-18cm and a weight of 200-250g, the selected white-browed fish is a common fish species in the cage culture area of ​​local fishermen, and domesticated them in two test ponds for two days in the way of cage culture On the third day of the test, a net was hung under the breeding net cage of the experimental group, and each nodule of the net was clamped with porous materials and PVC fiber cotton blocks were installed at the bottom of the net, and no objects were hung under the other breeding net cage. as a control group. Inflate the nets of the experimental group every 2 hours.

[0021] After 2 weeks, observe the experimental group and the control group: the water quality of the experimental group is clear, and the wate...

Embodiment 2

[0023] Two test pools with a size of 4×3×2m were selected as the experimental group and the control group respectively, and the fish ponds were soaked and disinfected with 1:1000 potassium permanganate before the test. 25 rock perch with a body length of about 15-18cm and a weight of 200-250g, the selected white-browed fish is a common fish species in the cage culture area of ​​local fishermen, and domesticated them in two test ponds for two days in the way of cage culture On the third day of the test, a net was hung under the breeding net cage of the experimental group, and each nodule of the net was clamped with porous materials and PVC fiber cotton blocks were installed at the bottom of the net, and no objects were hung under the other breeding net cage. as a control group. Inflate the nets of the experimental group every 2 hours.

[0024] After hanging the nets, samples were taken in two test ponds every day to analyze the chemical oxygen demand (COD) of the water body in...

Embodiment 3

[0026] Two test pools with a size of 4×3×2m were selected as the experimental group and the control group respectively, and the fish ponds were soaked and disinfected with 1:1000 potassium permanganate before the test. 25 rock perch with a body length of about 15-18cm and a weight of 200-250g, the selected white-browed fish is a common fish species in the cage culture area of ​​local fishermen, and domesticated them in two test ponds for two days in the way of cage culture On the third day of the test, a net was hung under the breeding net cage of the experimental group, and each nodule of the net was clamped with porous materials and PVC fiber cotton blocks were installed at the bottom of the net, and no objects were hung under the other breeding net cage. as a control group. Inflate the nets of the experimental group every 2 hours.

[0027] After hanging the net, take a sample respectively in two test pools every day, and analyze the concentration of nitrite in the cage cul...

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Abstract

The invention discloses a device for purifying the breeding water of a net box and an application thereof. The device is a net in which a porous material is arranged. The method utilizing the device of the invention to purify the breeding water of the net box comprises the following steps: (1) hanging the device below the breeding net box; and (2) inflating towards the inside of the device. The device has low cost, can enable nitrobacteria to automatically reproduce in a large amount, has no need of delivery, has simple and easy operation when being used for purifying the breeding water of the net box, has good purifying effect and is not easy to generate secondary pollution.

Description

technical field [0001] The invention relates to biological treatment of sewage, in particular to a device for purifying cage culture water and a method for using the same. Background technique [0002] Cage aquaculture has been favored by fishermen for its mobility, flexibility, water adaptability and high yield. In recent years, it has become a new force in my country's fishery emerging industry. At the same time, the cage culture system is a high-density, high-feed artificial breeding ecosystem, and its metabolic waste and residual bait are the main sources of pollution that cause environmental problems. Due to overstocking and overloaded culture, the content of nutrients in the water body of the cage culture area increased, eutrophication was serious, the lower water body was anoxic, and the content of sulfide and organic matter in the sediment increased. These organic matter in an anaerobic environment It is easy to decompose and produce ammonia, nitrogen, nitrite nitro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K63/04C02F3/34
Inventor 谭烨辉连喜平黄良民黄小平尹健强
Owner SOUTH CHINA SEA INST OF OCEANOLOGY - CHINESE ACAD OF SCI
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