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A kind of covering material and restoration method of slow-flow shallow water channel with black and odorous bottom mud

A technology of black and odorous bottom mud and covering materials, which is applied in the fields of chemical instruments and methods, water/sludge/sewage treatment, sludge treatment, etc., and can solve the problems that submerged plants are difficult to survive and ecological restoration projects are difficult to popularize and apply. Achieve the effect of improving the transparency of water bodies, accelerating recovery and healthy development, and promoting plant growth

Active Publication Date: 2017-11-03
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for river courses with black and odorous bottom mud, if the black and odorous bottom mud is not covered and treated, submerged plants will hardly survive, and ecological restoration projects will be difficult to popularize and apply.

Method used

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  • A kind of covering material and restoration method of slow-flow shallow water channel with black and odorous bottom mud
  • A kind of covering material and restoration method of slow-flow shallow water channel with black and odorous bottom mud
  • A kind of covering material and restoration method of slow-flow shallow water channel with black and odorous bottom mud

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A covering material for slow-flowing shallow water channels with black and odorous bottom mud, which is made of the following raw materials in mass fraction:

[0036]

[0037] A kind of preparation method of the covering material of slow-flowing shallow water channel of black and smelly bottom mud, its steps are:

[0038] 1) Dry the local river bottom mud after killing germs, pathogens, removing organic matter, etc., to obtain a kind of river bottom mud after killing germs;

[0039] 2) After soaking the medical stone in dilute hydrochloric acid with a mass fraction of 2 or 3 or 4 or 5% for 1 or 2 hours, wash it with water until neutral, and place it in a muffle furnace at 250°C or 270 or 290 or 310 or Roasting at 330 or 350°C for 1 or 2 hours to obtain a modified medical stone for later use;

[0040] 3) Mix the treated river bottom mud, modified medical stone and calcium peroxide according to the composition of the above-mentioned mass fractions, and prepare the bot...

Embodiment 6

[0051] A covering material for slow-flowing shallow water channels with black and odorous bottom mud, which is made of the following raw materials in mass fraction:

[0052]

[0053] A kind of preparation method of the covering material of slow-flowing shallow water channel of black and smelly bottom mud, its steps are:

[0054] 1) Dry the local river bottom mud after killing germs, pathogens, removing organic matter, etc., to obtain a kind of river bottom mud after killing germs;

[0055] 2) After soaking the medical stone in dilute hydrochloric acid with a mass fraction of 2 or 3 or 4 or 5% for 1 or 2 hours, wash it with water until neutral, and place it in a muffle furnace at 250°C or 255 or 260 or 275 or Roasting at 285 or 295 or 305 or 315 or 335 or 350°C for 1 or 2 hours to obtain a modified medical stone for later use;

[0056] 3) Mix the treated river bottom mud, modified medical stone and calcium peroxide according to the composition of the above-mentioned mass fr...

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Abstract

The invention discloses a covering material and repair method for a slow-flowing shallow water channel with black and odorous bottom mud, which is composed of a certain proportion of river bottom mud, modified medical stone, and calcium peroxide. The river sediment, modified medical stone and calcium peroxide are mixed in a certain proportion to prepare the sediment ecological covering material; 2) Spread the ecological matrix material evenly on the water surface of the slow-flowing river and sprinkle it into the river bottom; 3) After a period of time , Planting submerged plants in the covered area by enclosing the planting method, and scientifically managing and maintaining the submerged plants. The formula is reasonable, the use is convenient, the cost is low, the environment is friendly, and the restoration effect is good. The restoration method is easy to operate, ecological and environmentally friendly, and can improve the living environment of the river bottom, making it suitable for the growth of submerged plants, effectively solving the problems of submerged plants in rivers with black and odorous sediments, which are difficult to survive and grow, and is conducive to the restoration of the ecological environment of water areas. Make it accelerate the recovery and healthy development of the river ecosystem.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration of rivers, and more specifically relates to a preparation method of an ecological covering material and a restoration method of slow-flowing shallow water channels with black and odorous bottom mud, which can be applied to restoration projects of slow-flowing shallow water channels with black and odorous bottom mud. Background technique [0002] The black and smelly rivers are mainly the result of the unbalanced oxygen supply and consumption of water caused by excessive pollution. Especially slow-flowing rivers, the self-purification ability is poor. The water body is under anoxic or even anaerobic conditions for a long time, and a large amount of retained pollutants are transformed and produce ammonia nitrogen. Smelly and malodorous substances such as hydrogen sulfide and volatile organic acids, and black substances such as iron and manganese sulfides. After the bottom mud is black...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/02
CPCY02A20/402
Inventor 吴振斌张义贺锋徐栋周巧红刘子森杨晓龙
Owner INST OF AQUATIC LIFE ACAD SINICA