Substrate improving material for high-organic-matter bottom mud shallow lake and preparation method thereof, and repairing method

Abstract

The invention discloses a substrate improving material for a high-organic-matter bottom mud shallow lake and a preparation method thereof, and a repairing method; the substrate improving material is composed of clay, kaolin, environmental-protection ceramic filter balls and calcium peroxide. The preparation method comprises the steps: 1) selecting the clay, kaolin, environmental-protection ceramic filter balls and calcium peroxide as raw materials; 2) placing the environmental-protection ceramic filter balls in dilute hydrochloric acid, soaking, washing with clear water to be neutral, and drying; and 3) mixing evenly the clay, the kaolin, calcium peroxide and the processed ceramic filter balls according to a certain proportion, to prepare the substrate improving material. The repairing method comprises the steps: A) bamboo sticks are arranged in a lake bottom substrate improved region; B) the substrate improving material is sprinkled to the bottom of the lake from the surface of the lake; and C) submerged plants are planted on the substrate improved region, and the submerged plants are managed and maintained. The method is easy to implement and simple to operate, effectively solves the problems that the submerged plants are difficult to fixedly plant and ecological restoration projects are difficult to implement in a soft-surface high-organic-matter bottom mud lake, and accelerates the recovery of a lake ecosystem.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration of lakes, and more specifically relates to a base improvement material for shallow lakes with soft and high-organic sediment on the surface, and a method for preparing the base-improvement material for shallow lakes with soft and high-organic sediment on the surface. The invention relates to a restoration method for shallow lakes with soft and high-organic-matter sediment on the surface, which can be applied to ecological restoration projects of shallow-water lakes with soft and high-organic-matter sediment on the surface. Background technique [0002] The planting and restoration technology of submerged plants is the key technology of ecological restoration projects, and the use of aquatic macrophytes to restore water and sediment pollution is one of the effective ways to control, regulate and inhibit water eutrophication. The whole growth process of submerged plants lives in the w...

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.

However, the surface sediment of many natural shallow lakes is soft and has high organic matter content. This special substrate is not conducive to the growth and colonization of submerged plants. Generally, submerged plants cannot be planted directly, or the survival rate of submerged plants is low. It is difficult to promote the application of ecological restoration projects.

[0003] Clay is a kind of sticky soil with few sand particles. It can be used as an environmentally friendly substrate improvement material for lake substrate improvement projects. However, compact clay is easy to compact and cause anoxic environment, which makes it difficult for the roots of submerged plants. grow and rot

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