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Degraded lake restoration method

A restoration method, lake technology, applied in chemical instruments and methods, polluted waterway/lake/pond/river treatment, water treatment parameter control, etc. Ideal and other problems, to achieve the effect of increasing dissolved oxygen content and reducing total phosphorus and total nitrogen content

Inactive Publication Date: 2017-01-25
云南云创数字生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is characterized by long time consumption and poor ability to resist external interference
So the repair effect is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In an embodiment of the present invention, a method for restoring a degraded lake includes the following steps:

[0022] 1) Create constructed wetlands around degraded lakes.

[0023] 2) Establish aquatic plants along the coast of the degraded lake; the aquatic plants adopt the combination of lotus, reed and cattail.

[0024] 3) Add flocculant to the degraded lake, the amount of flocculant added is 20g per cubic meter; flocculant includes polysilicate, polyaluminum chloride and polyaluminum sulfate, and The mass ratio of aluminum sulfate is 0.5:1:1. The polysilicate is polyaluminum iron silicate.

[0025] 4) Add microbial agents to degraded lakes, and breed apple snails and crayfish resistant to eutrophic water in the water. The microbial inoculant includes, in parts by mass, raw materials: 1 part of photosynthetic bacteria and 15 parts of nitrifying bacteria.

Embodiment 2

[0027] In an embodiment of the present invention, a method for restoring a degraded lake includes the following steps:

[0028] 1) Create constructed wetlands around degraded lakes.

[0029] 2) Establish aquatic plants along the coast of the degraded lake; the aquatic plants adopt the combination of calamus, water chestnut and water chestnut.

[0030] 3) Add flocculant to the degraded lake, the amount of flocculant added is 300g per cubic meter; flocculant includes polysilicate, polyaluminum chloride and polyaluminum sulfate, and The mass ratio of aluminum sulfate is 2:20:1. The polysilicate is polyaluminum magnesium silicate.

[0031] 4) Add microbial agents to degraded lakes, and breed apple snails and crayfish resistant to eutrophic water in the water. The microbial inoculation agent comprises, in terms of mass parts, 10 parts of photosynthetic bacteria and 45 parts of nitrifying bacteria.

Embodiment 3

[0033] In an embodiment of the present invention, a method for restoring a degraded lake includes the following steps:

[0034] 1) Create constructed wetlands around degraded lakes.

[0035] 2) Establish aquatic plants along the coast of the degraded lake; the aquatic plants use a combination of gorgon, canna and barracuda.

[0036] 3) Add flocculant to the degraded lake, the amount of flocculant added is 50g per cubic meter; flocculant includes polysilicate, polyaluminum chloride and polyaluminum sulfate, and The mass ratio of aluminum sulfate is 1:1:1. The polymeric silicate is polymeric iron silicate.

[0037] 4) Add microbial agents to degraded lakes, and breed apple snails and crayfish resistant to eutrophic water in the water. The microbial inoculant includes, in parts by mass, raw materials: 1 part of photosynthetic bacteria and 15 parts of nitrifying bacteria.

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PUM

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Abstract

The invention discloses a degraded lake restoration method which comprises the following steps: building an artificial wetland surround a degraded lake; establishing aquatic plants along the bank of the degraded lake, wherein the aquatic plants adopt one or any combination of lotus, reed, cattail, calamus, banana-plant, water chestnut, gorgon fruit, canna, pontederia cordata, Chinese pennisetum, scirpoides holoschoenus, rhizoma alismatis, ottelia acuminate, tape grass, hornwort, ottelia alismoides, hydrilla and duckweed; adding a flocculating agent into the degraded lake, wherein the adding amount of the flocculating agent is 20 to 300 g per cubic meter, the flocculating agent comprises polymeric silicate, polyaluminium chloride and polyaluminium sulfate, and the mass ratio of the polymeric silicate to the polyaluminium chloride to the polyaluminium sulfate is (0.5-2):(1-20):(1-20); putting microbial agents in the degraded lake, wherein eutrophic water-resistant animals are bred in the water. By the degraded lake restoration method, the degraded lake can be ecological restored effectively. The dissolved oxygen content of the degraded lake is obviously increased, and the chemical oxygen demand, the ammonia nitrogen content, the total phosphorus content and the total nitrogen content are obviously reduced.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a restoration method for degraded lakes. Background technique [0002] At present, the ecological pollution and prevention of degraded lakes in my country is not optimistic. Eutrophication of the water body, a large amount of nitrogen, phosphorus and other nutrients flow into lakes and river mouths, causing algae and other plankton to multiply rapidly, and the dissolved oxygen in the water body decreases. Water quality deteriorated, fish and other organisms died in large numbers, forming algal blooms, leading to serious degradation of the lake. With the enhancement of environmental awareness, ecological concept and the improvement of living standards, the requirement to restore the degraded lake ecosystem is becoming more and more urgent. The current technologies for restoring the original ecology of rivers and lakes generally use microbial bacteria to degrade poll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F1/52C02F3/34C02F3/02C02F103/00
CPCC02F1/5245C02F3/02C02F3/327C02F3/348C02F2103/007C02F2209/08C02F2209/14C02F2209/16C02F2209/18C02F2209/22C02F2301/08Y02W10/10
Inventor 邱文尚莹刘成鑫
Owner 云南云创数字生态科技有限公司
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