Phytoremediation method for river channel buffer zone

A technology of phytoremediation and buffer zone, which is applied in the direction of river regulation and climate change adaptation. It can solve the problems of serious river degradation, unpleasant smell, unsuitable plant growth, etc., achieve smooth flood discharge, improve water quality and water ecology The effect of increasing the environment and aquatic biodiversity

Inactive Publication Date: 2017-01-04
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

And it emits an unpleasant smell, the river course is seriously degraded, and the buffer zone of the river course is not suitable for the growth of plants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] In an embodiment of the present invention, a method for phytoremediation of a river buffer zone comprises the following steps:

[0021] 1) On the river course, the dredged earthwork is piled up from the outside to the inside to form a buffer zone and the main channel. The water level of the buffer zone is controlled at 0.5 meters, and the water level of the main channel reaches 3 meters.

[0022] 2) Reconstruct the buffer zone with rock-fill type and jack-in-hole concrete block type; then add restoration agent to the water body of the river; the amount of restoration agent added is 10g / m 3 . Among them, the raw materials of the restoration agent include 25 parts by weight of nitrifying bacteria, 10 parts of denitrifying bacteria, 20 parts of lactic acid bacteria, 5 parts of Bacillus subtilis and 1 part of sulfur bacteria.

[0023] 3) Build embankments and plant aquatic plants on the upslope of the modified buffer zone, and plant floating plants on the downslope of the ...

Embodiment 2

[0026] In an embodiment of the present invention, a method for phytoremediation of a river buffer zone comprises the following steps:

[0027] 1) On the river course, the dredged earthwork is piled up from the outside to the inside to form a buffer zone and the main channel. The water level of the buffer zone is controlled at -2.5 meters, and the water level of the main channel reaches 4.5 meters.

[0028] 2) Renovate the buffer zone with rockfill type and jacked concrete block type; then add restoration agent to the water body of the river; the amount of restoration agent added is 200g / m 3 . Wherein the restorative agent, according to the raw materials of parts by weight, includes: 50 parts of nitrifying bacteria, 35 parts of denitrifying bacteria, 45 parts of lactic acid bacteria, 10 parts of photosynthetic bacteria, 25 parts of Bacillus subtilis, 10 parts of actinomycetes, 15 parts of sulfur bacteria, 10 parts of bentonite share.

[0029] 3) Build embankments and plant aq...

Embodiment 3

[0032] In an embodiment of the present invention, a method for phytoremediation of a river buffer zone comprises the following steps:

[0033] 1) On the river course, the dredged earthwork is piled up from the outside to the inside to form a buffer zone and the main channel. The water level of the buffer zone is controlled at 1.5 meters, and the water level of the main channel reaches 3 meters.

[0034] 2) Reconstruct the buffer zone with rockfill type and jacked concrete block type; then add restoration agent to the water body of the river; the amount of restoration agent added is 10-200g / m 3 . Wherein the restoration agent, raw materials according to weight parts include: 30 parts of nitrifying bacteria, 18 parts of denitrifying bacteria, 25 parts of lactic acid bacteria, 1 part of photosynthetic bacteria, 8 parts of Bacillus subtilis, 1 part of actinomycetes, 3 parts of sulfur bacteria, 1 part of bentonite share.

[0035] 3) Build embankments and plant aquatic plants on t...

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PUM

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Abstract

The invention discloses a phytoremediation method for a river channel buffer zone. According to the phytoremediation method for the river channel buffer zone, on a river channel, dredged earthwork is piled into the buffer zone and a main river channel from outside to inside, the water level of the buffer zone is controlled to be 0.5-2.5 m, and the water level of the main river channel reaches 3-4.5 m; rock filling type and insertion hole concrete block type bottom shape transformation is conducted on the buffer zone; a remediation agent is added to a water body in the river channel; an embankment is established at the upslope of the transformed buffer zone, and aquatic plants are planted, and floating plants are planted at the downhill position of the buffer zone; and submerged plants are planted at the main river channel, and omnivorous fishes and shrimps are bred at the main river channel. By the adoption of the phytoremediation method for the river channel buffer zone, the water quality and the aquatic environment of the river channel buffer zone are effectively improved, and the river channel is purified and beautified; the biodiversity of the water area is increased, water regulation and storage and flood discharge of the river channel are smoother, and the functions of underground water supplementation, carbon fixation and oxygen release and the like of a river system are further improved; and the urban landscape function of the river band can be fully embodied.

Description

technical field [0001] The invention relates to the technical field of river treatment, in particular to a phytoremediation method for a river buffer zone. Background technique [0002] With the rapid development of the economy, a large amount of industrial wastewater and domestic sewage are discharged into surface water bodies such as rivers and lakes, and these wastewaters carry a large amount of nutrients. Due to the discharge of nitrogen, phosphorus and other elements, and the lack of necessary circulation in the water body, the algae and other plankton will multiply rapidly, the dissolved oxygen in the water body will decrease, the water quality will deteriorate, and fish and other organisms will die in large numbers, resulting in eutrophication of the water body. Destroy the aquatic ecological balance and form algal blooms. And it emits an unpleasant smell, the river course is seriously degraded, and the buffer zone of the river course is not suitable for the growth o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/02
CPCE02B3/02Y02A10/11
Inventor 朱江勋聂兴华徐加
Owner 云南云创数字生态科技有限公司
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