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Ecological restoration method for black and odorous river channel

A technology for ecological restoration and river courses, applied in chemical instruments and methods, biological treatment devices, biological water/sewage treatment, etc., can solve the problems of ecological system structure imbalance, fragmented food web, functional degradation, etc., and achieve thorough governance and good strength And the effect of ductility, good environmental protection and ecological function

Pending Publication Date: 2021-08-17
SCI RES ACADEMY OF GUANGXI ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The food chain is broken, the food web is fragmented, the ecosystem structure is seriously unbalanced, and the function is seriously degraded or even lost

Method used

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  • Ecological restoration method for black and odorous river channel
  • Ecological restoration method for black and odorous river channel
  • Ecological restoration method for black and odorous river channel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] A method for ecological restoration of a black and odorous river course, comprising the steps of:

[0038] (1) Source control and sewage interception: check the sewage outlets on both sides of the river, and intercept the sewage flowing into the river;

[0039] (2) Bottom mud treatment: a plurality of dams are set along the river flow direction for partitioning, and bio-enzyme preparation granules are put into multiple sub-regional river water bodies for biodegradation. The biological enzyme preparation granules are composed of cellulase, xylanase, The granules made by mixing catalase according to the mass ratio of 2:1:1, the dosage of biological enzyme preparation granules is 3g / m 2 After 15 days of biodegradation, a flocculant is put into the water body, and the flocculant is composed of sodium carboxymethylcellulose, polyaluminum chloride, polyferric sulfate silicate and activated carbon in a mass ratio of 4:2:1:5 , the dosage of flocculant is 20g / m 2 , after stand...

Embodiment 2

[0048] A method for ecological restoration of a black and odorous river course, comprising the steps of:

[0049] (1) Source control and sewage interception: check the sewage outlets on both sides of the river, and intercept the sewage flowing into the river;

[0050] (2) Bottom mud treatment: a plurality of dams are set along the river flow direction for partitioning, and bio-enzyme preparation granules are put into multiple sub-regional river water bodies for biodegradation. The biological enzyme preparation granules are composed of cellulase, xylanase, The granules made by mixing catalase according to the mass ratio of 3:1:1, the dosage of biological enzyme preparation granules is 1g / m 2 After 12 days of biodegradation, a flocculant is put into the water body, and the flocculant is composed of sodium carboxymethylcellulose, polyaluminum chloride, polyferric sulfate sulfate and activated carbon according to the mass ratio of 3:3:1:4 , the dosage of flocculant is 15g / m 2 , ...

Embodiment 3

[0058] A method for ecological restoration of a black and odorous river course, comprising the steps of:

[0059] (1) Source control and sewage interception: check the sewage outlets on both sides of the river, and intercept the sewage flowing into the river;

[0060] (2) Bottom mud treatment: a plurality of dams are set along the river flow direction for partitioning, and bio-enzyme preparation granules are put into multiple sub-regional river water bodies for biodegradation. The biological enzyme preparation granules are composed of cellulase, xylanase, The granules made by mixing catalase according to the mass ratio of 2:1:1, the dosage of biological enzyme preparation granules is 2g / m 2 After 14 days of biodegradation, a flocculant is put into the water body, and the flocculant is composed of sodium carboxymethylcellulose, polyaluminum chloride, polyferric sulfate sulfate and activated carbon in a mass ratio of 5:1:1:6 , the dosage of flocculant is 18g / m 2 , after standi...

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Abstract

The invention provides an ecological restoration method for a black and odorous river channel, and belongs to the technical field of sewage treatment. According to the method, ecological restoration is carried out on the black and odorous river channel from five aspects of source control and sewage interception, bottom mud treatment, water body purification, ecological restoration and maintenance management, and the method is high in operability, thorough in treatment and high in treatment efficiency; through reconstruction of a riverway ecological system, the self-cleaning capacity of the water body is gradually restored, the peculiar smell and chroma of the black and odorous water body are gradually eliminated, finally ecological balance of the water body is achieved, the water quality is improved, the water body ecological system can be healthily and stably developed for a long time, and good environment-friendly and ecological functions are achieved.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an ecological restoration method for black and odorous river courses. Background technique [0002] With the continuous development of industrialization, the discharge of industrial wastewater and domestic water makes the river channel suffer from organic pollution and become a eutrophic water body. Microorganisms multiply in the water body, which makes the oxygen in the water body exhausted, resulting in the lack of oxygen in the water body. In oxygen water, organic pollutants are decomposed by anaerobic microorganisms to form a large number of amines, hydrogen sulfide, ammonia, etc., making the water black and smelly. Its physical and chemical environment is characterized by strong reduction, extremely serious organic and inorganic pollution, and the water body has a foul smell, which is no longer suitable for aquatic organisms to survive. Aquatic plants ar...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F9/00C02F3/342C02F1/5245C02F1/5263C02F3/34C02F3/327C02F2103/007C02F2303/02C02F2305/06C02F2209/06C02F2209/14C02F2209/08C02F2209/22C02F2203/006C02F2203/008C02F2303/14Y02A20/402
Inventor 徐荣乐宋晓薇赵侣璇黄业翔韦士程刘凯覃楠钧陈婷吴镇周良洁田媛谭政宇
Owner SCI RES ACADEMY OF GUANGXI ENVIRONMENTAL PROTECTION
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