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In-situ combined control system for releasing internal pollutants in aquaculture water and method thereof

A combined control and aquaculture technology, applied in the fields of water pollutants, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as no related reports, achieve good growth, control the release of sediment pollutants, and improve the effect of Good results

Inactive Publication Date: 2019-06-11
SHANGHAI OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Combining submerged plants and geochemical engineering technology in ecological technology, using the natural disturbance of benthic animals to realize the mixing of mineral materials and lower sediment, and the efficient passivation of mineral materials, to make up for the defects of low efficiency of ecological technology, to achieve two The organic combination of these can achieve the effect of completely remediating the polluted sediment. At present, there is no relevant report on the above-mentioned eco-geochemical engineering technology for remediating the polluted sediment.

Method used

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  • In-situ combined control system for releasing internal pollutants in aquaculture water and method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] The preparation method of the mineral mixture is: put a certain quality of calcium carbonate and zeolite into a container, and then add a certain quality of ferric chloride to control the mass ratio of calcium carbonate: zeolite: ferric chloride to be 1:1:0.2; then add A certain volume of deionized water, so that the ratio of the mass of calcium carbonate to the volume of deionized water is controlled as 1g: 10mL; then add 1mol / L NaOH solution to the mixed solution to make the pH of the mixed solution reach 10, and then continue to shake the reaction After 24 hours, solid-liquid separation and washing with deionized water until the pH value of the supernatant reaches about 8, the mineral material for sediment restoration is obtained.

Embodiment 2

[0034] The preparation method of the movable floating bed system is as follows:

[0035] ①Put a piece of sponge (length 10cm, width 7cm, height 3cm) in a beaker, then add 200mL of zirconium chloride solution with a mass concentration of 50g / L, soak for 12h, then take it out, put in 1.0mol / L NaOH Stable in the solution for 24 hours, take it out and dry it in an oven at 40°C to obtain a zirconia-loaded sponge.

[0036] ②Put a piece of sponge (length 10cm, width 7cm, height 3cm) in a beaker, then add 250mL of ferric chloride solution with a mass concentration of 40g / L, soak for 24h, then take it out, put in 1.0mol / L NaOH Stable in the solution for 24 hours, take it out and dry it in an oven at 40°C to obtain the iron oxide-loaded sponge.

[0037] ③ Take 3 zirconia-loaded sponges or iron oxide-loaded sponges, connect them with geotextiles to form a strip bag, and tie a stone at the end of the bag so that it can be in a vertical state after being added to the water body.

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Abstract

The invention discloses an in-situ combined control system for releasing internal pollutants in aquaculture water and a method thereof. The system comprises an upper overlying water layer, a bottom mud-overlying water body interface layer and a bottom mud layer, wherein a plurality of movable floating bed systems are distributed on the upper overlying water layer, a plurality of submerged plants,Benthic fauna and mineral materials which naturally settle on the bottom mud-overlying water body interface layer are distributed on the bottom mud-overlying water body interface layer, Benthic faunagroups are distributed in the bottom mud layer, the movable floating bed system comprises a floating bed, an active oxide-loaded sponge strip placed under the floating bed, a weight placed arranged under the active oxide-loaded sponge strip, and a remote control vessel connected with the floating bed. The synergistic effect of the mineral materials, the submerged plants, the Benthic fauna and themovable floating bed system realizes the remediation of polluted bottom mud of the aquaculture water and the release of endogenous phosphorus in bottom mud of aquaculture water body, the effect is good, safe and environmental protection, and the floating bed system can be moved arbitrarily, and the purification effect is good.

Description

technical field [0001] The invention belongs to the technical field of aquaculture water treatment, and in particular relates to an in-situ combined control system and method for releasing internal pollutants in aquaculture water. Background technique [0002] The sources of pollutants in fishery waters are divided into external sources and internal sources. With the strengthening of environmental protection in my country, the input of external sources in fishery waters has gradually been controlled, but the release of endogenous pollutants has gradually become an important factor affecting the quality of fishery waters. factor. At present, the remediation technology of contaminated sediment in endogenous pollutants at home and abroad includes two categories: in-situ remediation technology and ex-situ remediation technology. Among them, the ex-situ remediation technology mainly adopts environmental protection dredging to remove the polluted sediment, so as to reduce the rele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F1/28B01J20/02B01J20/30C02F101/10C02F101/16
Inventor 林建伟詹艳慧俞阳吴小龙柏晓云张志斌赵钰颖王艳常明玥王凤君吴俊麟辛慧敏
Owner SHANGHAI OCEAN UNIV
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