Ecological substrate for hard-substrate shallow lake as well as preparation method for ecological substrate and substrate improving method

Abstract

The invention discloses an ecological substrate for a hard-substrate shallow lake as well as a preparation method for the ecological substrate and a substrate improving method. The ecological substrate is prepared from clay, environment-friendly ceramic filter bulbs and bentonite. The preparation method for the ecological substrate comprises the following steps: (1) selecting the clay, the environment-friendly ceramic filter bulbs and the bentonite as raw materials for substrate improvement; (2) placing the environment-friendly ceramic filter bulbs in diluted hydrochloric acid to soak, washing the mixture with clear water until the mixture is neutral, and drying the mixture; (3) soaking the bentonite in sodium carbonate liquor, stirring the mixture and placing the mixture in a muffle furnace to roast; and (4) uniformly mixing the clay, the treated environment-friendly ceramic filter bulbs and the bentonite to prepare the ecological substrate for the substrate improvement. The substrate improving method for the hard-substrate shallow lake comprises the following steps: (a) arranging bamboo sticks in the substrate improving area in the lakebed, and diffusing and flowing away the modifying substrate; (b) spraying the ecological substrate material into the lakebed from the lake surface; and (c) planting submerged plants in the substrate improving area, and managing and conserving the submerged plants. The method is easy to carry out, simple and convenient to operate, so that the problem that the submerged plants are difficult to root and easy to float in the hard-substrate lake is effectively solved.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration of lakes, and more specifically relates to a substrate-improved ecological matrix material for hard-bottom eutrophic shallow-water lakes, and also relates to a preparation of a substrate-improved ecological matrix material for hard-bottom eutrophic shallow-water lakes The method also relates to a base improvement method for shallow lakes with hard-bottom eutrophication, which can be applied to ecological restoration projects for hard-bottom eutrophic lakes. Background technique [0002] The bioremediation technology of eutrophic shallow lakes is an emerging environmental biotechnology in recent years, and has been applied in lake restoration projects at home and abroad. 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...

AI Technical Summary

Problems solved by technology

[0006] Another object of the present invention is to provide a substrate improvement method for eutrophic shallow lakes with hard substrates. The method is easy to operate and can improve the living environment of hard substrates in the demonstration area, making it suitable for the growth of submerged plants and effectively Solve the problems of difficult rooting and easy floating of submerged plants in hard-bottomed lakes. At the same time, improving the substrate can in-situ absorb and accelerate the mineralization of pollutants such as sediment organic matter, which is conducive to the restoration of the ecological environment of the water area and accelerates the restoration of the ecosystem. and build