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Wetland ecosystem restoration method

An ecosystem and restoration method technology, applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve problems such as long pollution levels, achieve multi-microbial biomass, easy replacement, and excellent heavy metal ion adsorption and the effect of restoring performance

Active Publication Date: 2020-09-15
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 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 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 ratio of 2:1:1:1...

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 wetland ecosystem restoration method which comprises the following steps: firstly carrying out sectional water pumping dredging on a water area of an object wetland, storingthe pumped wetland water body into an anaerobic tank, and carrying out impurity removal, soaking, aeration, precipitation and separation on the cleaned sludge to obtain active sludge and deposited sludge; drying the deposited sludge until the water content does not exceed 5%, crushing, adding EM bacterial powder, ammonia oxidizing bacteria powder, bacillus subtilis powder, a probiological growth promoter and volcanic mud, and uniformly mixing to obtain bacterial mud; putting the activated sludge into a wetland water body, and carrying out intermittent aeration; backfilling bacterial sludge tothe water area section subjected to water pumping and desilting, planting submerged plants on the bacterial sludge, arranging a microorganism substratum on the bacterial sludge, and pouring the wetland water body back to the water area section; and arranging an ecological floating bed in the water area section, and putting benthonic animals, fishes and shrimps put into the ecological floating bed.The water transparency can be rapidly improved, a complete aquatic animal ecological chain and microbial communities are constructed, wetland pollutant reduction is promoted, and the water quality isimproved.

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 Applications(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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