Garbage landfill covering material and preparation method thereof
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A covering material and garbage technology, applied in the field of landfill covering material and its preparation, to achieve the effects of strong biodegradability, enhanced erosion resistance, and good tolerance
Active Publication Date: 2019-03-15
GUIZHOU OURUIXIN ENVIRONMENTAL PROTECTION TECH
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[0003] The purpose of the present invention is to provide a kind of landfill cover material, to overcome t
Method used
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Embodiment 1
[0018] Embodiment 1, a kind of cover material of landfill, the raw material that comprises is counted as in parts by weight: 50 parts of reverse flotation phosphorus tailings, 20 parts of mineralized garbage, 20 parts of modified cement-bentonite materials, 3 parts Parts of microbial inoculum.
Embodiment 2
[0019] Embodiment 2, a kind of waste landfill cover material, the raw material that comprises is counted as in parts by weight: 55 parts of reverse flotation phosphorus tailings, 25 parts of mineralized garbage, 15 parts of modified cement-bentonite materials, 4 parts Parts of microbial inoculum.
Embodiment 3
[0020] In Example 3, the raw materials included in parts by weight are: 60 parts of reverse flotation phosphorus tailings, 30 parts of mineralized waste, 10 parts of modified cement-bentonite material, and 5 parts of microbial seed liquid.
[0021] Taking Example 3 as an example, the preparation includes the following steps, step 1, material preparation: prepare 60 parts of reverse flotation phosphorus tailings, 30 parts of mineralized waste, 10 parts of modified cement-bentonite material , 5 parts of microbial strain liquid, crush the reverse flotation phosphorus tailings into gravel with a diameter of 5-20 cm, place it at 900-1000 ° C for 1.5-2 hours, and crush it again into a particle size of 10-20 cm Mesh particles;
[0022] Step 2, preparation of the outer covering layer: select 20 parts of reverse flotation phosphorus tailings and 15 parts of mineralized waste in step 1 to mix to obtain the outer covering layer;
[0023] Step 3, preparation of the inner covering layer: ...
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Abstract
The invention discloses a garbage landfill covering material in the field of environmental treatment materials, comprising the following raw materials in parts by weight: 50-60 parts of reverse flotation phosphate tailing, 20-30 parts of mineralized garbage, 10-20 parts of modified cement-bentonite material and 3-5 parts of microbial strain liquid, wherein the modified cement-bentonite material iscomposed of four materials: ordinary portland cement, bentonite, blast furnace slag and fly ash, and the mineralized garbage is the mineralized garbage buried in a landfill for 3 years at least, andthe microbial strain liquid is the microbial solution cultured by garbage leachate. In this invention, the reverse flotation phosphate tailing and modified cement-bentonite materials are used as adhesion agents, and are used as waterproof and breathable materials in soilless spraying covering materials; the mineralized garbage is used as a framework while providing microorganisms; after spraying,the covering materials have triple effects of ventilation, waterproof and rain wash resistance; and a core microbial technology for culturing the microbial liquid by adding garbage leachate uniquely and with a rapid degradation effect can effectively deodorize and kill flies for a long time.
Description
technical field [0001] The invention belongs to the field of environmental treatment materials, and in particular relates to a landfill covering material and a preparation method thereof. Background technique [0002] While the economy continues to grow at a high speed, the living standard improves rapidly, and the urbanization process continues to accelerate, the output of urban domestic waste in my country is also increasing day by day. The harmful components contained and produced in garbage will pollute the atmosphere, soil, and water, which not only seriously affects the quality of the urban environment, but also directly threatens human health, becoming one of the social hazards. Therefore, the disposal of municipal solid waste has become a major environmental problem to be solved urgently. Modern sanitary landfill engineering is the main method of dealing with urban waste all over the world. During the design and operation of sanitary landfills, the spread, compactio...
Claims
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