River sediment ecological treatment method

A technology for river sediment and ecological treatment, applied in chemical instruments and methods, biological water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of single treatment method and high cost, and achieve low cost and treatment effect. Significant lasting effect

Inactive Publication Date: 2019-01-04
河南省科学院地理研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Method used

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Embodiment 1

[0020] A method for ecological control of river bottom mud, comprising the following steps:

[0021] S1, salvage the solid waste deposited in the river, remove the non-degradable debris in the bottom mud of the river, and then set up an interception net in the lower reaches of the river, which will not affect the flow rate of the water;

[0022] S2, put active agent citric acid solution and adsorption balls with a particle size of 25cm into the river, and the aperture of the adsorption ball is larger than the aperture of the interception net, the outer layer of the adsorption ball is hollowed out, and the adsorption ball is filled with There is an adsorbent, and then a stirring paddle is installed on the motor (Xi'an Electric Machinery Factory, YVF series) to stir the bottom mud and river water for 2.5 hours, then let it stand for 4 days, intercept and salvage the adsorption ball;

[0023] Wherein, the adsorbent is composed of peanut shells, corncobs, activated carbon, and vol...

Embodiment 2

[0029] A method for ecological control of river bottom mud, comprising the following steps:

[0030] S1, salvage the solid waste deposited in the river, remove the non-degradable debris in the bottom mud of the river, and then set up an interception net in the lower reaches of the river, which will not affect the flow rate of the water;

[0031] S2, put active agent citric acid solution and adsorption balls with a particle size of 35cm into the river, and the aperture of the adsorption ball is larger than the aperture of the interception net, the outer layer of the adsorption ball is hollowed out, and the adsorption ball is filled with There is an adsorbent, and then a stirring paddle is installed on the motor (Xi’an Electric Machinery Factory, YVF series) to stir the bottom mud and river water for 3.5 hours, then let it stand for 7 days, intercept and salvage the adsorption ball;

[0032] Wherein, the adsorbent is composed of peanut shells, corncobs, activated carbon, and vol...

Embodiment 3

[0038] A method for ecological control of river bottom mud, comprising the following steps:

[0039] S1, salvage the solid waste deposited in the river, remove the non-degradable debris in the bottom mud of the river, and then set up an interception net in the lower reaches of the river, which will not affect the flow rate of the water;

[0040] S2, put active agent citric acid solution and adsorption balls with a particle size of 28cm into the river, and the aperture of the adsorption ball is larger than the aperture of the interception net, the outer layer of the adsorption ball is hollowed out, and the adsorption ball is filled with There is an adsorbent, and then a stirring paddle is installed on the motor (Xi'an Electric Machinery Factory, YVF series) to stir the bottom mud and river water for 3.2 hours, and then stand still for 5 days, intercept and salvage the adsorption ball;

[0041] Wherein, the adsorbent is composed of peanut shells, corncobs, activated carbon, and ...

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Abstract

The invention belongs to the technical field of river treatment, and particularly related to a river sediment ecological treatment method. After solid waste deposited in a river is fished, an intercepting net is arranged at the downstream of the river, citric acid solution serving as an activator and adsorption balls are added into the river, the adsorption balls are filled with adsorbents, sediment and river water are mixed and sufficiently adsorbed, microbial agents are added, a river bottom is subjected to aeration treatment and water disinfection, and submerged plants are cultivated in a tiled manner. By combining various modes of solid waste fishing purification, adsorption of organic pollutants by the adsorption balls, microbial water purification, river bottom ecological plant system building and the like, the river sediment is progressively and omnidirectionally purified and repaired to restore ecological balance, and the river sediment ecological treatment method is low in cost, remarkable and lasting in treatment effect and suitable for popularization and use.

Description

technical field [0001] The invention belongs to the technical field of river course management, and in particular relates to an ecological treatment method for river bottom mud. Background technique [0002] Water body sediment pollution is an environmental problem worldwide. Pollutants enter water bodies through atmospheric deposition, wastewater discharge, rainwater leaching and scouring, and finally deposit in the bottom mud and gradually enrich, causing the bottom mud to be seriously polluted. In fluvial environments, bed sediments are transported in the form of displacement and suspension, largely resulting in the physical interaction of overlying water and sediments. Rivers have a strong natural environment, which tends to be conducive to the desorption of sediment sediment in the river system, which will affect the water quality of the overlying water. Pollutants can persist, accumulate and migrate through biological metabolism to produce toxicity and teratogenicity i...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30
CPCC02F1/281C02F3/32C02F3/34C02F2101/30C02F2103/007C02F2303/02C02F2303/04
Inventor 张小磊梁少民李春发
Owner 河南省科学院地理研究所
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