Inorganic material carrier applied to ecological floating bed

Abstract

The invention relates to an inorganic material carrier applied to an ecological floating bed, aiming at solving the technical problems that the existing floating bed carrier easily causes secondary environmental pollution and potential safety hazards and the application cost is high. The inorganic material carrier is prepared from the following raw materials in parts by weight: 10-15 parts of ceramsite, 8-12 parts of expanded vermiculite, 8-15 parts of pumice, 5-10 parts of biomass charcoal, 3-8 parts of attapulgite, 5-10 parts of silicate cement, 5-15 parts of kieselguhr, 5-10 parts of kaolin, 5-10 parts of pulverized fuel ash, 0.5-1.5 parts of polypropylene fiber and 1-3 parts of water reducing agent. The inorganic material carrier is environment-friendly, has no pollution, has stable physicochemical property, high mechanical strength, long service life and good microorganism affinity, facilitates microorganism growth and breeding, improves the microorganism film forming efficiency, has good water body purifying effect, wide raw material sources, low price, no introduction of polluted substances and low using and maintaining costs, and is easy to popularize.

Description

technical field [0001] The invention relates to a plant growth carrier, in particular to an inorganic material carrier applied to an ecological floating bed. Background technique [0002] In the past 30 years, with the rapid development of social economy, a large amount of untreated industrial and domestic sewage has been directly discharged into rivers and lakes, resulting in a sharp increase in the nutrient load in the water system and extremely serious eutrophication. The treatment of polluted rivers and lakes is a very difficult and expensive problem in water pollution control. The ecological floating bed purification technology with higher plants as the main body has high efficiency, low cost, easy maintenance, good landscape effect, and can realize in-situ It has the characteristics of remediation and control of pollutants, and can adapt to various water depths. The management and harvest of plants are also easier than constructed wetland systems, so it is increasing...

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Problems solved by technology

However, because aquatic plants are prone to overgrowth and aging and death, and harvesting and processing are difficult, this technology has not been directly applied to the treatment of large-scale eutrophic lakes; the second type is organic polymer carriers (such as polystyrene foam) and its modified materials, etc.), because the production process of organic polymer materials is very mature, the price is low, and the installation, transportation and modification are convenient, so it occupies a dominant position in the domestic floating bed production materials, but this type of material has fatal problems in application. Defects, the floating bed has poor corrosion resistance, is easy to age, cannot be used for a long time, and is inconvenient to maintain. What is more serious is that these materials are easily damaged and broken under the action of stress, and it is difficult to salvage if lost in water, which will cause secondary environmental pollution and safety hazards. , has become one of the main factors restricting its large-scale promotion; the third category is inorganic carriers. Compared with organic polymer materials, inorganic materials have obvious advantages in environmental protection benefits and raw material sources, so inorganic material carriers will undoubtedly become floating bed carriers. It is the mainstream trend of development, but at present, most of them are laboratory research, and there are no research results that can be put into practical application.

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