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Sea water culture environment multiple state position biological restoring method

A marine aquaculture and bioremediation technology, applied in the field of aquaculture environment restoration, can solve the problems of treating symptoms but not the root cause, high cost of human and material resources, complicated operations, etc., and achieves the effect of reducing pollution and achieving sustainable development.

Inactive Publication Date: 2008-09-17
SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above two methods are not only complicated to operate, require a lot of manpower and material resources, and are costly, but also only treat the symptoms but not the root cause.

Method used

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  • Sea water culture environment multiple state position biological restoring method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] In Shanwei Honghai Bay Shrimp Farm, the aquaculture wastewater is discharged into the discharge ditch through the outlet, as shown in Figure 2. In the first stage, the shrimp pond water and the bottom wastewater of the shrimp pond are sampled to determine the various indicators of water quality and the content of beneficial bacteria , and then put Bacillus subtilis, Rhodopseudomonas palustris and Lactobacillus in a quantitative ratio of 3:1:1 according to the results of the determination to supplement beneficial bacteria such as Bacillus subtilis, Rhodopseudomonas palustris and Lactobacillus, to ensure that the spores The density of bacillus in the breeding wastewater is not small 3×10 4 CFU / ml, to remove nitrogen and phosphorus and transform organic matter. After 4 hours of treatment, water samples were taken to measure various indicators of water quality. Then stock no less than 100g of Nile tilapia in the ditches, and the amount of stocking is 0.5kg / m 3 . At the s...

Embodiment 2

[0023] In Haifeng Quanji Aquaculture Company in Shanwei City, the aquaculture wastewater from No. 1 pond was discharged into the discharge ditch through the outlet, as shown in Figure 2. In the first stage, the water in the shrimp pond and the wastewater at the bottom of the shrimp pond were first sampled to determine the water quality. subtilis, Rhodopseudomonas palustris and Lactobacillus in a quantitative ratio of 4:2:1 according to the results of the determination, to supplement Bacillus subtilis, Rhodopseudomonas palustris and lactic acid bacillus and other beneficial bacteria to ensure that the density of bacillus in the aquaculture wastewater is not small 3×10 4 CFU / ml, to remove nitrogen and phosphorus and transform organic matter. After 5 hours of treatment, water samples were taken to measure various indicators of water quality. Then stock no less than 100g bluefish in the ditches, and the stocking rate is 0.5kg / m 3 . At the same time, at least one 3m × 4m × 0.8m ...

Embodiment 3

[0028] In the Sanwei aquaculture farm in Chenghai District, Shantou City, the salinity specific gravity of the aquaculture water is 1.010, and the aquaculture wastewater is discharged into the discharge ditch through the outlet, as shown in Figure 2. In the first stage, the water in the shrimp pond and the wastewater at the bottom of the shrimp pond are treated first. Sampling was carried out to determine the various indicators of water quality and the content of beneficial bacteria, and then according to the results of the determination, Bacillus subtilis, Rhodopseudomonas palustris and Lactobacillus were added in a quantitative ratio of 6:3:1 to supplement Bacillus subtilis and Rhodopseudomonas palustris. Beneficial bacteria such as monascus and lactobacillus ensure that the density of bacillus in the aquaculture wastewater is not small 3×10 4 CFU / ml, to remove nitrogen and phosphorus and transform organic matter. After 4 hours of treatment, water samples were taken to measu...

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Abstract

The invention discloses a multi-ecological niche bioremediation method of seawater aquiculture environment, which comprises the steps of draining aquiculture wastewater into an aquiculture trench, adding beneficial bacteria to remove nitrogen and phosphorous and convert organic matters on the first stage, culturing filter-feeding fishes and large-scale seaweed to form a multi-ecological niche biosphere coexisting microalgae, filter-feeding fishes and large-scale seaweed in the second stage, and allowing bioremediation of seawater aquiculture environment by utilizing different ecological niches of beneficial bacteria, microalgae, filter-feeding fishes and large-scale seaweed through synergic action of organisms. The inventive method can clean aquiculture wastewater to meet discharge standards, remediate aquiculture environment, and obtain fishes and large-scale seaweed, thereby bringing environmental, economic and ecological benefits.

Description

technical field [0001] The invention relates to a method for restoring the aquaculture environment, in particular to a method for multi-state bioremediation of the seawater aquaculture environment. Background technique [0002] At present, aquaculture is developing in the direction of intensification and high density. With the continuous improvement of the degree of intensification of aquaculture, the concentration of toxic and harmful substances such as ammonia nitrogen and nitrite nitrogen in aquaculture wastewater will increase, and the pollution impact on coastal waters will be greater. It is becoming more and more obvious, such as the increase of organic particles in coastal seawater, the decrease of dissolved oxygen, the increase of nitrogen and phosphorus concentration, and the eutrophication of the surrounding sea areas. Aquaculture wastewater not only pollutes the coastal waters, but also causes secondary pollution to the aquaculture itself, and even leads to red ti...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34
Inventor 文国樑李卓佳杨铿曹煜成陈永青杨莺莺
Owner SOUTH CHINA SEA FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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