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Ecological revetment structure with pollution remediation function

An ecological revetment and pollution restoration technology, which is applied in coastline protection, horticulture, botanical equipment and methods, etc., can solve the problems of unfavorable vegetation long-term growth and low organic matter content, so as to improve water storage and repair ability, prevent Effects of eutrophication and pollution, water content retention

Active Publication Date: 2016-06-22
CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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Problems solved by technology

At the same time, affected by water flow, the content of organic matter and nitrogen in the soil is low, which is not conducive to the long-term growth of vegetation

Method used

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  • Ecological revetment structure with pollution remediation function

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Embodiment Construction

[0012] The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.

[0013] figure 1 Shown is the structural schematic diagram of the ecological revetment structure with pollution repair function of the present invention, the ecological revetment structure with pollution repair function comprises bank slope soil layer 1, soil and biological carbon fine particle layer mixed layer 2, Biochar coarse particle layer 3 and gravel layer 4.

[0014] The preparation method of the biochar fine particles is as follows: dry straw or rice straw and pyrolyze it at a high temperature of 300-500 degrees Celsius for 60-90 minutes under anoxic conditions to prepare biochar, and use hydrochloric acid, sulfuric acid, and sodium hydroxide solution , according to the acidity, alkalinity or proportion adjustment, carry out pickling activation, wash away the acid-soluble or alkali-soluble subs...

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Abstract

The invention provides an ecological revetment structure with a pollution remediation function. The ecological revetment structure sequentially comprises a bank slope soil layer, a soil and biochar fine particle layer mixed layer, a biochar coarse particle layer and a rubble layer from top to bottom. Biochar particles are prepared by conducting high-temperature pyrolysis on stalks or straw under an oxygen deficient condition, and smashed and ground into biochar fine particles with the diameter being 0.5-0.8 cm after being subjected to acid cleaning activation; and biochar particles are prepared by conducting high-temperature pyrolysis on corncobs under an oxygen deficient condition, and smashed and ground into biochar coarse particles with the diameter being 1.5-2.0 cm after being subjected to acid cleaning activation. The ecological revetment structure can improve the water and nutrition storage capacity and remediation capacity of revetment soil and prevent water eutrophication; during waterflooding in a flooding period, the biochar can adsorb nutrient substances such as nitrogen and phosphorus, and after water recession, the adsorbed nutrient substances are slowly released and provided for plant growth; and meanwhile, the ecological revetment structure integrates the functions of keeping the water content of padding and preventing plants from dying due to a drought.

Description

technical field [0001] The invention relates to the technical field of ecological revetment, in particular to an ecological revetment structure with the function of pollution restoration. Background technique [0002] In recent years, with the increasing intensity of human disturbance to river and terrestrial ecosystems, their structures and functions are increasingly degraded. The riparian zone is the link between land and river ecosystems, and excessive human disturbance has caused many hazards to the ecological status of the riparian zone and human production and life. In order to protect and manage the natural riparian zone, restore and rebuild the riparian zone severely damaged by human activities, the construction of ecological revetment is the development trend of modern river management. [0003] Ecological revetment refers to the use of plants or the combination of plants and civil engineering for river slope protection. In addition to preventing river bank collaps...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B3/12A01G1/00
CPCA01G2/00E02B3/12
Inventor 代娟雷文韬周银军曾月何苗陈锦何秀玲张琳杨启红毛冰申康
Owner CHANGJIANG RIVER SCI RES INST CHANGJIANG WATER RESOURCES COMMISSION
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