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A wetland ecosystem restoration method

A technology for ecosystems and restoration methods, applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve problems such as prolonged pollution, achieve the effect of improving water quality and maintaining ecological balance

Active Publication Date: 2022-02-22
广州市广绿园林绿化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when restoring the water environment of wetlands, the process of absorbing and degrading the pollutants in the water body through the growth and development of plants and the ecological chain of aquatic animals, and reducing the pollution degree of the water body is very long.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A wetland ecosystem restoration method, comprising the steps of:

[0033] Step S1: Carry out segmental pumping and dredging of the water area of ​​the target wetland, store the pumped wetland water in an anaerobic tank, remove impurities from the cleaned sludge, add water to soak and aerate for 24 hours, and the aeration intensity is 15L / m2 , part of the sludge is precipitated, part of the flocculent sludge is suspended in the water, and the precipitated sludge and the suspended sludge are separated to obtain activated sludge and sedimentary sludge;

[0034] Step S2: Dry the sediment sludge at 60°C for 30 hours at high temperature until its water content does not exceed 5%, then crush the dried sediment sludge to a particle size of no more than 100mm, and mix EM bacteria powder, ammonia oxidizing bacteria powder, and Bacillus subtilis Bacteria powder and Puro biological growth promoter were diluted 150 times with water respectively, and then fully mixed with a volume rat...

Embodiment 2

[0040] A wetland ecosystem restoration method, comprising the steps of:

[0041] Step S1: Carry out segmental pumping and dredging of the target wetland waters, store the pumped wetland water in an anaerobic tank, remove impurities from the cleaned sludge, add water to soak and aerate for 24 hours, and the aeration intensity is 10L / m 2 , part of the sludge is precipitated, part of the flocculent sludge is suspended in the water, and the precipitated sludge and the suspended sludge are separated to obtain activated sludge and sedimentary sludge;

[0042] Step S2: Dry the sediment sludge at 60°C for 30 hours at high temperature until its water content does not exceed 5%, then crush the dried sediment sludge to a particle size of no more than 100mm, and mix EM bacteria powder, ammonia oxidizing bacteria powder, and Bacillus subtilis Bacteria powder and Probio-growth promoting agent were diluted 100 times with water respectively, and then fully mixed at a volume ratio of 2:1:1:1 t...

Embodiment 3

[0048] A wetland ecosystem restoration method, comprising the steps of:

[0049] Step S1: Carry out segmental pumping and desilting of the water area of ​​the target wetland, store the pumped wetland water in the anaerobic tank, remove impurities from the cleaned sludge, add water to soak and aerate for 22 hours, and the aeration intensity is 12L / m 2 , part of the sludge is precipitated, part of the flocculent sludge is suspended in the water, and the precipitated sludge and the suspended sludge are separated to obtain activated sludge and sedimentary sludge;

[0050] Step S2: Expose the sediment sludge to the sun at 40°C for 72 hours until its water content does not exceed 5%, then crush the dried sediment sludge to a particle size of no more than 100 mm, and mix EM bacteria powder, ammonia oxidizing bacteria powder, and Bacillus subtilis After the powder and the probiotic growth-promoting agent were diluted 200 times with water respectively, they were fully mixed with a volu...

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Abstract

The invention discloses a method for restoring a wetland ecosystem. Firstly, the water area of ​​the target wetland is pumped and desilted in sections, and the extracted wetland water body is stored in an anaerobic pool, and the cleaned out silt is subjected to impurity removal, soaking, aeration, and sedimentation. and separation to obtain activated sludge and sedimentation sludge; dry the sedimentation sludge until the water content does not exceed 5%, after crushing, add EM bacteria powder, ammonia oxidizing bacteria powder, Bacillus subtilis powder, Probio-growth accelerator, and volcanic mud for mixing uniform to obtain the bacteria sludge; put the activated sludge into the wetland water body for intermittent aeration; backfill the bacteria sludge to the water area where the pumping and dredging are carried out, plant submerged plants and set up microbial attachment bases on the bacteria sludge, and The wetland water body is poured back into the water section; an ecological floating bed is set in the water section, and benthic animals, fish and shrimps are put in. This application can quickly improve the transparency of water bodies, build a complete ecological chain of aquatic animals and microbial communities, and promote the reduction of wetland pollutants and the improvement of water quality.

Description

technical field [0001] The invention relates to a method for restoring a wetland water body, in particular to a method for restoring a wetland ecosystem. Background technique [0002] Under the dual pressure of population explosion and economic development, a large number of wetlands were transformed into farmland in the middle and late 20th century. Coupled with excessive resource development and pollution, the wetland area was greatly reduced and wetland species were severely damaged. Among them, the most common problem is the high degree of wetland pollution and eutrophication brought about by urbanization. When the concentration of nitrogen and phosphorus in the water reaches a certain concentration, it will lead to the outbreak of cyanobacteria. Due to the outbreak of cyanobacteria, the transparency of the water body will decrease, and the submerged plants cannot carry out the necessary photosynthesis. In addition, the habitat conditions such as oxygen supply are poor, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/10C02F3/12C02F3/30C02F3/32C02F3/34C02F101/16C02F101/20C02F101/22
CPCC02F3/107C02F3/1278C02F3/301C02F3/325C02F3/327C02F3/34C02F3/347C02F2101/16C02F2101/20C02F2101/22C02F2305/06Y02W10/10Y02A40/22
Inventor 刘贵英何俊梅苏洁莹张敏华段一帆
Owner 广州市广绿园林绿化有限公司
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