A kind of micro-ecological matrix based on constructed wetland to strengthen the treatment of aquaculture wastewater, its preparation method and its application

A technology for artificial wetlands and aquaculture wastewater, applied in biochemical equipment and methods, chemical instruments and methods, microorganisms, etc., can solve the problems of poor substrate treatment effect, single function of microorganisms, water pollution, etc.

Active Publication Date: 2020-10-20
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the problems of water pollution caused by the existing large-scale and high-density aquaculture industry, the purpose of the present invention is to provide a micro-ecological substrate based on artificial wetlands for intensive treatment of aquaculture wastewater and its preparation method
It solves the problems of the single function of the controlled microorganisms in the traditional artificial wetland technology and the poor purification effect caused by the poor substrate treatment effect, and realizes energy saving and environmental protection

Method used

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  • A kind of micro-ecological matrix based on constructed wetland to strengthen the treatment of aquaculture wastewater, its preparation method and its application
  • A kind of micro-ecological matrix based on constructed wetland to strengthen the treatment of aquaculture wastewater, its preparation method and its application
  • A kind of micro-ecological matrix based on constructed wetland to strengthen the treatment of aquaculture wastewater, its preparation method and its application

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preparation example Construction

[0039] A method for preparing a micro-ecological matrix based on artificial wetlands to strengthen the treatment of aquaculture wastewater, the steps are as follows:

[0040] (1) Preparation of EM compound solution: mix EM stock solution, molasses, aquaculture wastewater and deionized water at a mass percentage of 3-5%: 2-5%: 2-5%: 85-93%, and put it into Anaerobic fermentation in the fermenter for 3-6 days, set the fermentation temperature at 37°C, and measure the pH value of the culture medium regularly every day. When the pH value is less than 3.5, the microorganisms in the EM stock solution have achieved the function of restoring metabolism, and the rejuvenation successfully produced EM Compound solution.

[0041] (2) Preparation of embedding agent for composite microorganisms: first activate the attapulgite with hydrochloric acid, and combine the activated attapulgite with nano-SiO 2 , sodium alginate and distilled water after deoxygenation are mixed uniformly at a mass ...

Embodiment 1

[0049] figure 1 It is a schematic diagram of the plane layout of the enhanced constructed wetland and the control constructed wetland for the treatment of aquaculture wastewater, refer to figure 1 As shown, an aquaculture pond near the water diversion channel 40 was selected in the Baima Lake area of ​​Huaian, Jiangsu, and an artificial wetland 20 using reinforced micro-ecological matrix and a contrast wetland 30 were respectively set up on both sides of the aquaculture pond 10, and the hydraulic load of the system was 6cm / d. The water is fed in the way of continuous dosing and dispensing of sewage.

[0050] refer to figure 2 As shown, the constructed wetland is a vertical flow constructed wetland, and the strengthened constructed wetland is mainly composed of pool body 1, strengthened micro-ecological matrix 2, aquatic plants, water inlet area and water outlet area. The artificial wetland enhanced micro-ecological matrix is ​​configured according to the proportion of micr...

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Abstract

The invention relates to a micro-ecological matrix capable of intensively treating breeding wastewater based on artificial wetland, a preparation method and applications thereof. The micro-ecologicalmatrix is formed by mixing an ecological carrier ball, biochar and modified zeolite, wherein the composite microorganism in an EM compounding liquid is coated with the calcium alginate in an encapsulating agent and cross-linking curing is performed to obtain the micro-ecological carrier ball, an EM stock solution, molasses, breeding wastewater and deionized water are mixed and anaerobic fermentation is performed to obtain the EM compounding liquid, and hydrochloric acid-activated attapulgite, nanometer SiO2, sodium alginate and distilled water are uniformly mixed and stirred to obtain the encapsulating agent of the composite microorganism. According to the present invention, the purification system constructed by using the micro-ecological matrix of the present invention has good purification effect compared to the traditional artificial wetland.

Description

technical field [0001] The invention relates to the field of aquaculture wastewater treatment, in particular to a micro-ecological matrix based on artificial wetlands for intensive treatment of aquaculture wastewater and a preparation method thereof. Background technique [0002] At present, my country's aquaculture industry is in a historical transition period from the traditional high-yield stocking model to large-scale farming and quality benefits. At the same time, the feed residues put in during the aquaculture process and the pollutants formed by the excrement of fish, shrimp, and crabs make the aquaculture water body increasingly eutrophic, and the direct discharge of untreated aquaculture wastewater is likely to cause non-point source pollution of the surrounding water bodies. [0003] Constructed wetland is composed of substrate, plants and microorganisms, and is a comprehensive ecosystem. Constructed wetlands give full play to the synergistic effect of substrates, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32C02F3/34C02F3/00C10B53/02C12N1/00C02F103/20
CPCC02F3/00C02F3/327C02F3/34C02F2003/001C02F2003/003C02F2103/20C10B53/02C12N1/00Y02E50/10
Inventor 许明王良恺段圣坡毛欣宇徐达灵陈爽邵孝侯
Owner HOHAI UNIV
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