Ecological concrete prepared based on adsorbing material and method for purifying water by using same

Abstract

The invention provides ecological concrete prepared based on an adsorbing material. The ecological concrete comprises aggregate, a solid additive and a liquid additive, wherein the aggregate comprises volcanic rock accounting for 70%-80% of the total mass of the aggregate and ceramsite or carbon black accounting for 20%-30% of the total mass of the aggregate, the volcanic rock serves as the adsorbing material, and the ceramsite or the carbon black serves as adsorbing molecules; the mass ratio of the aggregate to the solid additive to the liquid additive is 300: (1-3): (1-3). A method for purifying water by using the ecological concrete comprises the following steps: mixing the adsorbing material, the adsorbing molecules and clay, putting the mixture in cloth bags, laying the cloth bags so as to serve as a bottom layer, laying the ecological concrete on the cloth bags, laying planting soil mixed with the adsorbing material on the ecological concrete, and planting plants on the planting soil. According to the method, the indexes such as COD (Chemical Oxygen Demand), TP (Total phosphorus) and TN (Total Nitrogen) of water yielded by purification under the conditions of identical climatic environments, water flow and pollutant concentration are obviously reduced.

Description

Technical field [0001] The invention relates to an ecological concrete prepared based on adsorption materials. [0002] The invention also relates to a method for purifying water quality by using the ecological concrete. Background technique [0003] With the development of society and economy, the damage to the environment by various industries is becoming more and more serious, especially the pollution of natural water bodies is increasing day by day. Sewage discharged from the paper industry, textile industry, chemical industry, and steel industry enters natural water bodies, affecting the self-purification ability of natural water bodies and the growth of water animals and plants. The most common water quality problem in my country is the eutrophication of water bodies. Eutrophication is caused by the concentration of nitrogen in the water body exceeding 0.2~0.3mg / L, the concentration of phosphorus exceeding 0.01mg / L, and the biochemical oxygen demand (COD) exceeding 10mg / L. L...

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Problems solved by technology

[0005] Traditional limestone-based ecological concrete has the advantages of high compressive strength, porosity, and good water permeability. However, because its aggregat...

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