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Constructed wetland filler and preparation method thereof and constructed wetland system

A technology of artificial wetland filler and artificial wetland system, which is applied in the field of environmental management, can solve problems such as insufficient decontamination ability, and achieve the effects of preventing and controlling the loss of microorganisms, improving the decontamination ability, and prolonging the service life.

Inactive Publication Date: 2021-08-27
SHENZHEN WENKE GARDENING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a kind of artificial wetland filler and its preparation method, as well as the artificial wetland system, to solve the technical problems of insufficient decontamination ability of the artificial wetland filler existing in the prior art and to be improved

Method used

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  • Constructed wetland filler and preparation method thereof and constructed wetland system
  • Constructed wetland filler and preparation method thereof and constructed wetland system

Examples

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preparation example Construction

[0040] In this embodiment, the preparation method of artificial wetland filler comprises the following steps:

[0041] In step S100, the raw materials are weighed according to the ratio of 20%-30% of wheat bran, 40%-60% of zeolite powder and 20%-30% of vermiculite powder, and fully mixed to obtain a raw material mixture.

[0042] Among them, wheat bran, zeolite powder and vermiculite powder are all 100-200 mesh powders.

[0043] Step S200, adding microorganism liquid to the raw material mixture, mixing evenly, and drying to obtain a microbial carrier; wherein the weight percentage of the microbial liquid to the raw material mixture is 40%-60%.

[0044] In this step, the microbial bacterial liquid can be added to the raw material mixture, mixed evenly, and then dried at 45°C to obtain the microbial carrier. The microorganisms in the microbial liquid are several or one of Bacillus subtilis, Bacillus licheniformis, Bacillus amyloliquefaciens, Paracoccus denitrificans, yeast, Nit...

Embodiment 1

[0055] In this embodiment, the following steps are included:

[0056] In step S101, the raw materials are weighed according to the ratio of 30% of wheat bran, 40% of zeolite powder and 30% of vermiculite powder in terms of weight percentage, and are fully mixed to obtain a raw material mixture.

[0057] Step S102, adding the bacterial solution of Bacillus subtilis and Bacillus licheniformis to the raw material mixture, mixing evenly, and drying at 45°C to obtain a microbial carrier; wherein the bacterial solution of Bacillus subtilis and Bacillus licheniformis accounted for the weight of the raw material mixture The percentage is 40%.

[0058] Step S103 , uniformly mixing the polyvinyl alcohol aqueous solution with a mass fraction of 6% and the epoxy resin at a ratio of 1:1 to obtain an adhesive.

[0059] In step S104, the two materials are uniformly mixed according to the ratio of 85% of microbial carrier and 15% of weakly alkaline Portland cement in weight percentage to obt...

Embodiment 2

[0063] In this embodiment, the following steps are included:

[0064] In step S101 , in weight percent, the raw materials are weighed according to the ratio of 25% wheat bran, 50% zeolite powder and 25% vermiculite powder, and the raw material mixture is obtained after thorough mixing.

[0065] Step S102, adding bacterial solutions of Bacillus amyloliquefaciens and Paracoccus denitrificans to the raw material mixture, mixing evenly, and drying at 45°C to obtain microbial carriers; wherein the bacterial solutions of Bacillus subtilis and Bacillus licheniformis accounted for the raw material mixture The weight percentage is 50%.

[0066] Step S103 , uniformly mixing the polyvinyl alcohol aqueous solution with a mass fraction of 6% and the epoxy resin at a ratio of 2.5:1 to obtain an adhesive.

[0067] In step S104, the two materials are uniformly mixed according to the ratio of 95% of microbial carrier and 5% of weakly alkaline Portland cement in weight percentage to obtain an ...

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Abstract

The invention discloses a constructed wetland filler and a preparation method thereof and a constructed wetland system, and relates to the technical field of environmental governance. The preparation method of the constructed wetland filler comprises the following steps: weighing the following raw materials in percentage by weight: 20-30% of wheat bran, 40-60% of zeolite powder and 20-30% of vermiculite powder, and fully mixing the materials to obtain a raw material mixture; adding a microbial liquid into the raw material mixture, uniformly mixing, and drying to obtain a microbial carrier; uniformly mixing a polyvinyl alcohol aqueous solution with a mass fraction of 6% and epoxy resin according to a ratio of (1-2.5): 1 to obtain an adhesive; uniformly mixing 85-95% by weight of the microbial carrier and 5-15% by weight of cement to obtain an intermediate mixture; and adding a binder into the intermediate mixture, uniformly mixing to prepare particles, and drying the particles to obtain the constructed wetland filler. The constructed wetland filler prepared by the invention can greatly improve the decontamination capacity of the constructed wetland system.

Description

technical field [0001] The invention relates to the technical field of environmental treatment, in particular to a constructed wetland filler, a preparation method thereof, and a constructed wetland system. Background technique [0002] Constructed wetlands are wetland environmental ecosystems constructed by means of artificial simulation. Fillers in artificial wetlands are also called filter materials and substrates. The wetland filler matrix not only provides growth medium for plants and microorganisms, but also directly removes pollutants through sedimentation, filtration and adsorption. [0003] However, the decontamination ability of the existing artificial wetland filler needs to be improved. Contents of the invention [0004] The main purpose of the present invention is to provide a constructed wetland filler, its preparation method, and a constructed wetland system, so as to solve the technical problem that the constructed wetland filler has insufficient decontam...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30C02F3/32
CPCC02F3/301C02F3/32C02F2003/001
Inventor 刘天翔曹华英林瑞君鄢春梅韦菁华许诺文珊珊孙立中谢小成李露芳
Owner SHENZHEN WENKE GARDENING IND
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