Application of environmental protection enzymes in the prevention and control of algal blooms in lakes

An environmentally friendly enzyme and technology, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc., to achieve the effect of simple preparation method, water quality improvement, and good water quality

Inactive Publication Date: 2018-04-17
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are very few studies on the application of environmental protection enzymes on the suppression of algae blooms in eutrophic lakes

Method used

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  • Application of environmental protection enzymes in the prevention and control of algal blooms in lakes
  • Application of environmental protection enzymes in the prevention and control of algal blooms in lakes
  • Application of environmental protection enzymes in the prevention and control of algal blooms in lakes

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Experimental program
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preparation example Construction

[0046] The invention also discloses a preparation method of an environment-friendly enzyme, comprising the following steps:

[0047] Fruits and / or vegetables, as well as water and sugars are put into airtight containers in proportion to ferment for 3-6 months, and the filtered clear liquid is filtered to obtain the environment-friendly enzyme.

[0048] Wherein, the fermented raw materials may only contain fruits, not vegetables; for example, preferably 1 / 3 apple peel, 1 / 3 banana peel and 1 / 3 orange peel. The fermented raw materials can also only contain vegetables without fruits; for example, 1 / 3 of lettuce, 1 / 3 of cabbage and 1 / 3 of spinach are preferred.

[0049] Wherein, the environment-friendly enzyme is mixed and fermented according to the volume ratio of fruits and / or vegetables: water: sugar = 1: 2-4: 8-12.

[0050] The invention also discloses a preparation method of an algal bloom inhibitor, comprising the following steps:

[0051] The algal bloom inhibitor is obtai...

Embodiment 1

[0061] Embodiment 1 environmental protection enzyme is to the inhibition of Microcystis aeruginosa

[0062] (1) Experimental supplies

[0063] Microcystis aeruginosa, enzymes;

[0064] Medium: sodium nitrate, dipotassium hydrogen phosphate, magnesium sulfate, calcium chloride, sodium carbonate, ferric citrate, Na 2 EDTA;

[0065] No ammonia: concentrated sulfuric acid;

[0066] Total nitrogen: potassium nitrate, sodium hydroxide, potassium persulfate, concentrated hydrochloric acid;

[0067] Total phosphorus: ascorbic acid, ammonium molybdate, potassium antimony tartrate, potassium dihydrogen phosphate;

[0068] Ammonia nitrogen: ammonium chloride, potassium sodium tartrate, potassium iodide, mercury dichloride, potassium hydroxide;

[0069] Chemical oxygen demand: potassium dichromate, silver sulfate, ferrous sulfate, ammonium ferrous sulfate, 1,10-phenanthroline, mercury sulfate;

[0070] 25mL glass colorimetric tube with stopper, 50mL glass colorimetric tube with stop...

Embodiment 2

[0119] Embodiment 2 environmental protection enzyme is to the inhibition of the growth of Scenedesmus tetrascaus and the improvement effect to water quality

[0120] The prepared environmental protection enzyme was added dropwise to the culture solution of Scenedesmus tetrascaus and a blank control was set, with three parallels for each group.

[0121] On the third day of the experiment, the flocculation and sedimentation of Scenedesmus tetrascaus to the bottom of the medium can be clearly observed in the algae liquid medium added with 1:240, 1:120 and 1:60 concentrations of environmental protection enzymes, and the higher the concentration of the enzyme added in the medium , the less the amount of flocculation and sedimentation of Scenedesmus tetracerus. The water in the upper part of the algae liquid medium with 1:240 concentration of environmental protection enzyme becomes clear and transparent; the algae liquid medium with 1:120 and 1:60 concentration of environmental prot...

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Abstract

The application of an environmentally friendly enzyme in the prevention and control of algal blooms in lakes. Wherein, the environmental protection enzyme has the effect of inhibiting the abnormal increase of TN caused by algae proliferation; or, the environmental protection enzyme has the effect of inhibiting the abnormal increase of pH caused by algae proliferation; or, the environmental protection enzyme has Improve the water quality of the water environment. And an application of an environment-friendly enzyme in the preparation of an algal bloom inhibitor, wherein the environment-friendly enzyme is prepared by putting fruits and / or vegetables, water, and carbohydrates in proportion to fermentation in a closed container. The algae are Microcystis aeruginosa, Scenedesmus tetracerus and / or Navicula rhinocephalum. The present invention finds that the environmentally friendly enzyme is used for the first time to prevent and control the harm of algal blooms in lakes, and has a significant effect on inhibiting the growth of algae; in addition, the preparation method of the environmentally friendly enzyme / algal bloom inhibitor is simple, low in cost, easy to industrialized operation, and can also avoid the occurrence of Secondary pollution.

Description

technical field [0001] The invention relates to the field of ecological restoration of water body environment, and more specifically relates to the application of an environmental protection enzyme in preventing and controlling algae bloom hazards in lakes. Background technique [0002] Lakes are the main source of water for agriculture, aquaculture, and domestic use. They also have the functions of maintaining biodiversity, regulating climate, storing floods, regulating surface runoff, and purifying water quality. With the rapid development of my country's economy, the urban population continues to increase, the discharge of industrial and agricultural wastewater and domestic sewage continues to increase, a large amount of nutrients continue to enter the lake, the proportion of eutrophic lakes increases year by year, and the abnormal proliferation of algae occurs frequently, forming water blooms . The dominant algae of lake water blooms are generally cyanobacteria, green al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34
Inventor 杨苏文
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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