Straw biochar ecological revetment based on lake mud resource utilization and construction method thereof

Abstract

The invention relates to a straw biochar ecological revetment based on lake mud resource utilization and a construction method thereof, and is characterized in that an ecological revetment base material is prepared by adopting crop straw and river mud as the raw materials; the preparation method of the ecological revetment base material comprises the following steps: plant straw is firstly subjected to classification pretreatment, pretreated and crushed plant straw and / or straw biochar are added into river dredging sediments subjected to dehydration treatment, and the materials are mixed and fully and uniformly stirred; a stabilizer and a curing agent are sequentially added in the mixture to be uniformly stirred again after the moisture content is adjusted. According to the straw biochar ecological revetment based on lake mud resource utilization and the construction method thereof, the crop straw pollution problem is effectively solved, safety resource utilization of dredging sediments is realized in the same spot, the soil fixation and slope protection effect is good, surface runoff is effectively retarded, runoff contaminants are intercepted, and a good landscape effect is achieved.

Description

Technical field [0001] The invention relates to a technology in the field of environmental protection and water and soil conservation, in particular to a straw bio-carbon ecological bank protection based on the utilization of crop straw as a resource and a construction method thereof. Background technique [0002] The siltation of rivers in urban and rural areas is common in my country, and the original flood control and disaster prevention and mitigation capabilities of rivers have been severely affected. In recent years, the state has focused on strengthening the governance of small and medium rivers and rural rivers. Dredging projects have been widely used as the main measure. Jiangsu Province invested more than 4 billion in river dredging from 2003 to 2014, and the cumulative dredging volume exceeded 3.5 billion. cubic meter. Since the Tenth Five-Year Plan, my country has carried out many "environmental protection dredging" projects around the removal of pollutants in the se...

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Problems solved by technology

[0006] Aiming at the problems that the existing technology cannot take into account the harmful substances in the bottom mud and easily lead to the loss of pollutants, etc., the present invention proposes a straw bio-carbon ecological revetment and its construction method based on the utilization of bottom mud resources, which can effectively solve the pollution of crop straws Problems, realization of safe utilization of dredged sediment on site, good effect of soil consolidation and slope protection, effective stagnation of surface runoff, interception of runoff pollutants, and good landscape effects, etc.

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