A kind of artificial floating bed composite ecological matrix and preparation method thereof

Abstract

The invention relates to the field of water pollution control and water body ecological restoration, and discloses an artificial floating bed composite ecological matrix, which comprises the following raw materials in terms of volume percentage: 60-75% of solid-state adsorption matrix, 24-37% of solid-state ecological improvement matrix and 1-3% of mud-like bio-enhanced matrix, wherein, in parts by weight, the solid-state adsorption matrix includes 10-15 parts of dolomite powder, 10-15 parts of shell powder and 1-3 parts of iron-manganese mud from waterworks, solid ecological The improved matrix includes 10-15 parts of charcoal powder, 2-4 parts of pine needle powder and 5-10 parts of rice husk ash; and a preparation method of an artificial floating bed composite ecological matrix is ​​also disclosed. The raw materials of the artificial floating bed composite ecological matrix of the present invention are cheap, easy to obtain, clean and harmless, the preparation process is simple, and the preparation process has little impact on the environment. Nitrogen and phosphorus substances have high-efficiency and continuous removal capacity.

Description

technical field [0001] The invention relates to the fields of water pollution control and water body ecological restoration, in particular to an artificial floating bed composite ecological matrix and a preparation method thereof. Background technique [0002] Artificial floating bed is a water ecological restoration technology derived from modern agronomic soilless planting technology. It is also commonly known as ecological floating island, ecological floating bed, artificial floating bed, artificial floating island, floating wetland or biological floating island. In recent years, this water ecological restoration technology known as "water garden" has been widely used in many areas of our country. The main difference between this technology and the direct planting of aquatic plants in the water body is that this technology uses light materials to fix the aquatic plants and float on the water surface with high density, so it can be applied to the treatment of natural water...

AI Technical Summary

Problems solved by technology

[0004] The introduction of the above-mentioned substrates can improve the ability of the artificial floating bed to remove pollutants in the water body in the short term, but its purification method mainly depends on the adsorption of the substrate. Therefore, in the long run, the effect of the above-mentioned substrates on removing pollutants is not obvious, especially Nitrogen and phosphorus substances; in addition, the preparation cost of the above-mentioned matrix is ​​relatively high, such as the preparation of the microbial immobilized carrier calcium alginate and the preparation of the magnesium slag ceramic filter ball, it is difficult to scale production and application; moreover, the above-mentioned matrix is ​​due to the addition of A variety of heavy metal industrial wastes, such as slag and magnesium slag ceramic filter balls, are likely to cause secondary pollution, make plants absorb and enrich heavy metals, and are not conducive to the subsequent disposal and utilization of floating bed plants

[0005] On the other hand, a large number of engineering applications have shown that floating bed plants are prone to problems such as lodging, pests, and invasion of foreign plants, but the current solutions to such problems are basically through plant selection (such as selecting relatively low aquatic plants), Application of pesticides and artificial or chemical weeding, which in turn brings about negative ecological, environmental and landscape effects such as secondary pollution, unreasonable plant configuration, etc.