Background technology
Grow continuously and fast in economy, when standard of living improves rapidly, urbanization process constantly accelerates, the output of China's domestic waste also grows with each passing day.The objectionable constituent that contained in the rubbish with produce can pollute atmosphere, soil, water body, not only have a strong impact on city environmental quality, and the direct threats HUMAN HEALTH, become one of social effects of pollution.Therefore, domestic waste is treated as the great environmental problem that needs to be resolved hurrily.China on the basis of using for reference developed country's advanced experience, confirms that the sanitary landfill treatment technology is one of practical disposal technology of optimum China's national situation during the Seventh Five-Year Plan period.The Ministry of Construction and the Department of Science and Technology formally confirm as the one preferred technique that China promotes in the recent period with the sanitary landfill treatment technology in September, 1991.In the sanitary landfill treatment technology, the selection of covering material all is vital to refuse treatment cost and treatment technology, and therefore, the research and development of covering material are the main contents of Sanitation Landfill Technology for Refuse.
Overwhelming majority refuse landfill adopts clay as covering material in China, and mainly there is following drawback in this method: 1) over-all properties of clay covering material is relatively poor; 2) clay covering material source is limited; 3) waste garbage sanitary filling field storage capacity; 4) the mosquitos and flies worm's ovum ratio under the tectum is easier to the hatching growth; 5) the excavation clay can cause the destruction of vegetation.Modern garbage sanitary filling field also is just to obtain recent years applying; Because there is the higher requirement of ratio aspects such as garbage sanitary filling technology; Running cost is also than higher, a lot of garbage sanitary filling fields of China to covering material select for use and construct on the improved place of needs is all arranged.Though an aspect selecting garbage sanitary filling just and refuse treatment for use of covering material, new covering material research with use, will promote garbage sanitary filling field the applying of China, help promoting the garbage treatment of China.
Summary of the invention
Cover the drawback of being brought in order to solve clay, invented this rubbish capping material.This product has promptly solved the insufficient problem of clay source, has saved the running time again, has alleviated labor intensity of operating personnel; Because tectum is thinner, therefore the storage capacity of refuse landfill is increased greatly, economic benefit is obvious; Effectively suppress the dust of refuse landfill in the landfill process to atmospheric pollution; Effectively control pathogen growth breeding; The effectively diffusion of control refuse tip stink.
But the rubbish capping material of a kind of sprayed construction of the present invention, this product are pale powder shape solid, add water and stir after can use powder: water=1.0: 2.0~3.0.Wherein in the powder each component volume is following by weight percentage:
Said ordinary Portland cement label is No. 42.5 ordinary Portland cements.
Said ether of cellulose is that ether of cellulose is a hydroxypropyl methyl cellulose ether, and viscosity is 10000mPa.s.
Said water reducer is a sulfonation ultrapas high efficiency water reducing agent.
Said trevira is that staple length is 4mm, and said skimmer is a silicone antifoam agent.
Adopt rubbish capping material provided by the invention not only can effectively solve the insufficient problem of clay source, saved the running time again, alleviated labor intensity of operating personnel; Because tectum is thinner, therefore the storage capacity of refuse landfill is increased greatly, economic benefit is obvious; Effectively suppress the dust of refuse landfill in the landfill process to atmospheric pollution; Effectively control pathogen growth breeding; The effectively diffusion of control refuse tip stink.
Embodiment
For further setting forth the present invention, provide embodiment below and explain.
Bird repellent: Hefei Bai Chuan bio tech ltd
Reodorant: the clean gloomy Genie et Environnement in Shanghai
In the present invention, said ordinary Portland cement label is P.O 42.5 ordinary Portland cements.
Said ether of cellulose is a hydroxypropyl methyl cellulose ether, and viscosity is 10000mPa.s.
Said water reducer is a sulfonation ultrapas high efficiency water reducing agent.
Said trevira is that staple length is at 4mm.
Said skimmer is silicone based powder skimmer.
The constructional method of this material is following: rubbish must carry out overwrite job again after the refuse tip compacting; Rubbish capping material is put into the storage tank of spraying machine; After adding water by a certain percentage and stirring, just can form a kind of nontoxic, non-flammable slurry, utilize spraying machine slurry to be sprayed at uniformly on the rubbish that needs to cover; Form an airtight uniform tectum, thickness is about 0.5mm.
Based on above-mentioned scope, first embodiment that the present invention provides, the concrete weight proportion of each component is following:
1) formula for a product
2) constructional method:
Powder and water by after 1: 4 the mixed, in the spraying machine of packing into, are sprayed on the refuse tip uniformly, form an airtight uniform coverage rate.
Based on above-mentioned scope, second embodiment that the present invention provides, the concrete weight proportion of each component is following:
1) formula for a product
2) constructional method:
Powder and water by after 1: 4 the mixed, in the spraying machine of packing into, are sprayed on the refuse tip uniformly, form an airtight uniform coverage rate.
Based on above-mentioned scope, the 3rd embodiment that the present invention provides, the concrete weight proportion of each component is following:
1) formula for a product
2) constructional method:
Powder and water by after 1: 4 the mixed, in the spraying machine of packing into, are sprayed on the refuse tip uniformly, form an airtight uniform coverage rate.
Based on above-mentioned scope, the 4th embodiment that the present invention provides, the concrete weight proportion of each component is following:
1) formula for a product
2) constructional method:
Powder and water by after 1: 4 the mixed, in the spraying machine of packing into, are sprayed on the refuse tip uniformly, form an airtight uniform coverage rate.
Based on above-mentioned scope, the 5th embodiment that the present invention provides, the concrete weight proportion of each component is following:
1) formula for a product
2) constructional method:
Powder and water by after 1: 3.5 the mixed, in the spraying machine of packing into, are sprayed on the refuse tip uniformly, form an airtight uniform coverage rate.
Based on above-mentioned scope, the 6th embodiment that the present invention provides, the concrete weight proportion of each component is following:
1) formula for a product
2) constructional method:
Powder and water by after 1: 4.5 the mixed, in the spraying machine of packing into, are sprayed on the refuse tip uniformly, form an airtight uniform coverage rate.