Composite material for water ecological restoration, and preparation method and application thereof

Abstract

The invention discloses a composite material for water ecological restoration, and a preparation method and an application thereof. The composite material comprises the following raw materials in parts by weight: 30 to 40 parts of a mixture of rice chaff and husk, 8 to 16 parts of itaconic acid, 3 to 7 parts of dien, 26 to 34 parts of tea bran, 1 to 5 parts of dichloroethane and 11 to 19 parts ofpotassium fulvate. The preparation method comprises the following steps: crushing the tea bran, adding a dichloroethane solution, carrying out heating under stirring, carrying out ultrasonic treatment, adding deionized water, carrying out mixing, filtering a filtrate of a water intaking layer, and carrying out concentration so as to prepare a tea bran treated substance; crushing the mixture of rice chaff and husk, carrying out mixing with an itaconic acid solution, and carrying out heating so as to obtain a mixture A; and mixing a dien solution with the tea bran treated substance and the mixture A, carrying out heating, and carrying out mixing with the potassium fulvate under stirring so as to obtain the composite material. The composite material provided by the invention can achieve the effects of transferring, transforming and degrading pollutants in water, so the self-purification function of an aquatic ecosystem and a water body is gradually recovered. The composite material provided by the invention can improve the germination rate and the survival rate of a plant and the ecological restoration rate of a side slope, and can effectively improve a sloping land.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, in particular to a composite material for water ecological restoration and its preparation method and application. Background technique [0002] At present, my country's urban landscape water, ecological lakes, river water environment, rural domestic sewage, aquaculture circulating water and other aspects of pollution and prevention are not optimistic. Due to the strengthening of urban construction, the demand for urban landscape water has increased, and the requirements for the governance of its water environment have further intensified. At present, for the treatment of these water environments in our country, the methods often used include circulating filtration method, falling water aeration method, air flotation biochemical method and other methods. These methods have achieved certain results in the ecological restoration of water environment, but these methods are not Each h...

AI Technical Summary

Problems solved by technology

At present, for the treatment of these water environments in our country, the methods often used include circulating filtration method, falling water aeration method, air flotation biochemical method and other methods. These methods have achieved certain results in the ecological restoration of water environment, but these methods are not Each has some insurmountable shortcomings

The water treatment devices that are often used not only consume electricity, but also can only be effective during treatment. Once they are stopped, the water environment will continue to deteriorate

Although there are materials such as water ecological restoration agents in the prior art, the restoration effect is poor and the function is single