CN107027541A - A kind of method of the utilization municipal solid wastes production afforestation raw-soil again - Google Patents
A kind of method of the utilization municipal solid wastes production afforestation raw-soil again Download PDFInfo
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- CN107027541A CN107027541A CN201710205070.4A CN201710205070A CN107027541A CN 107027541 A CN107027541 A CN 107027541A CN 201710205070 A CN201710205070 A CN 201710205070A CN 107027541 A CN107027541 A CN 107027541A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
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Abstract
The invention discloses a kind of method of utilization municipal solid wastes production afforestation raw-soil again, by base-materials such as municipal sludge, landfill waste soil, garden wastes, by 20 ~ 40%:30~60%:20 ~ 40% volume ratios are transported to mixer, while adding a small amount of microbial bacterial agent, humic acid fertilizer and soda lime, soil stabilizer etc., are sufficiently mixed, and are configured to greening soil.Nutrient content needed for plant is higher in the raw-soil again for the afforestation that is formed of the present invention, contain a small amount of humus, demand of the plant growth to nutrient can be met, and, after planting plants, elapse over time, then plant residue, the organic substance in the raw-soil etc. can be decomposed further, humic acidifying, with root system of plant reciprocation, soil property can be continuously available lifting.
Description
Technical field
The present invention relates to environmental protection and afforestation field, and in particular to is that one kind produces gardens using municipal solid wastes
The method for afforesting again the raw-soil.
Background technology
With the fast development of urbanization, municipal solid wastes are sharply increased, and how safety, decrement with disposing admittedly in time
Body discarded object is the pressing problem that the current whole world is faced with.Municipal sludge is sewage treatment plant in processing plant and sanitary wastewater mistake
The solid-state castoff produced in journey, land use, landfill, burn be disposing sludge in the world major way, in China nearly one
Half sludge landfill characteristics.Municipal sludge contains rich in a variety of nutriments needed for organic matter and plant growth, full nitrogen with full phosphorus
Amount, which is far above in hog manure, but sludge, also contains detection device for multi metallic elements and harmful organic compounds, such as that municipal sludge is direct
For agricultural production, the harmful substance such as these heavy metals can enter food chain by crop, injure food security.Therefore how
Food chain is avoided, safe and efficient low cost is urgent problem using municipal sludge.
China's domestic waste is largely produced, and garbage-surrounded city phenomenon occurs.Separate waste collection is carried out due to not strict,
Component of refuse is complicated, main at present mainly including kitchen garbage, plastics and paper productses, finishing waste wood, metal, glass etc.
It is disposed by garbage loading embeading, because surrounding city land resource is deficient, many big city refuse landfills are in saturation shape
State, urgent need clears out landfill waste to be recycled so as to fill field energy, and thick slag is more in rubbish, containing part harmful substance, supports
Divide content not high, how safe and efficient landfill waste of disposing is the another problem that urban environment department is badly in need of solving.
With the development of urban landscaping, city trees and shrubs discarded object drastically increases, garden waste be mainly trimming and
The ornamental plant limb dropped and fallen leaves, can cause fire and environmental sanitation problem without collection processing, and therefore, gardens are discarded
The safe and efficient disposal of thing is the department of afforestation in recent years urgent problem.
Meanwhile, need to use a large amount of soil moved in improve the originals in Ecological Projects in Urban Gardens, and urban area soil resource is deficient, because
This, solves afforestation with native problem by using municipal solid wastes, solid waste is used for into garden plantses
Plantation, had both avoided crop food chain, and will not bring food-safety problem, realizes that solid waste becomes and discards as precious physical norm for soils
Utilize, farmland soil resource is protected again, and there is provided the native new sources of afforestation.
The content of the invention
It is an object of the invention to provide a kind of low cost, municipal solid wastes are effectively digested, production afforestation soil
Method；Concrete technical scheme is：
A kind of method of the utilization municipal solid wastes production afforestation raw-soil again, the municipal solid wastes include city
Domestic sewage sludge, domestic waste and afforestation discarded object；The urban domestic sewage sludge produces for sewage treatment plant
Raw undressed wet mud；The afforestation discarded object is the trimming of afforestation department, the trunk of hygienic cleaning, tree
Root, branch, leaf, weeds；The domestic waste comes from refuse landfill；Comprise the following steps：
1）The debris such as stone big in the domestic waste, mixed mud block, working of plastics are removed, then through 2cm aperture sieves, sieve
Remove the domestic waste base-material of larger block part, as configuration greening soil；
2）It will be crushed after the afforestation waste gathering through pulverizer, cross 2cm aperture sieves and remove larger plant block, it is remaining
Thing is the afforestation discarded object base-material of configuration greening soil；
3）By urban domestic sewage sludge, domestic waste base-material, afforestation discarded object base-material, by percent by volume 20 ~
40%:30~60%:20 ~ 40%, which are transported to mixer, is stirred；
4）By the greening mound configured into not less than 5m3Mound, pours permeable, then is completely covered with plastic foil, and 3 are stacked out of doors
- 6 months individual month；
5）The greening soil be can be directly used for into Nursery Stock production, greening construction, or mixed with the existing soil in place
Conjunction is used, and is adapted to the various afforestation of plantation and is used plant.
Further, the urban domestic sewage sludge water content 70% to 90%.
Further, Sludge deodorant is added in the urban domestic sewage sludge.
Further, the domestic waste is decomposed to form for more than 10 years for landfill through filling heap corruption, includes stone, glass
The debris such as quarrel, wire, working of plastics, and the organic soil being decomposed to form through heap corruption.
Further, step 3）Middle addition microbial bacterial agent, humic acid fertilizer and soda lime, soil stabilizer, are carried out abundant
Mixing, is configured to greening soil.
Further, the microbial bacterial agent is the rotten special microbial bacterial agent of heap, by 5-10g/m3Ratio is added；Humic acid
For commercially available humic acid fertilizer, by 500-1000g/m3Ratio is added, and soda lime presses 1 ~ 3kg/m3Ratio is added, and soil stabilizer is pressed
200-500 g/m3Addition.
Further, to step 3）Base-material has been configured through lab analysis, unit weight, organic matter, NPK contents etc., a huge sum of money is determined
Category；If test rating up to requiring, can not carry out specific aim adjustment by adding garden waste, turfy soil, rural area soil etc.；Add
Plus turfy soil be domestic conventional turfy soil.
Further, the unit weight of the greening soil is less than 1.0g/cm3, pH value 6.5-7.5, quality of organic matter fraction is more than
10%, effective nitrogen content is more than 200 mg/kg, and available phosphorus mass fraction is more than 100 mg/kg, and effective potassium mass fraction is big
In 100mg/kg, heavy metal reaches《Standard of soil environment quality》（GB15618-1995）Primary standard.
The quality of the afforestation that is formed of the present invention raw-soil again is close to loam, from landfill waste soil and garden waste
In contain a certain proportion of coarse granule, it is ensured that gas permeability and water penetration；The content of organic matter is high in the raw-soil again, and unit weight is low, is difficult
Hardened, with preferable physical behavior, it is contemplated that urban soil is trampleed on many, the problem of degree of packing is big, the raw-soil again is special
It is suitable for use as urban area afforestation.
Nutrient content needed for plant is higher in the raw-soil again for the afforestation that is formed of the present invention, containing a small amount of humus,
Demand of the plant growth to nutrient can be met, moreover, after planting plants, elapse over time, then plant residue in the raw-soil, is had
Machine material etc. can be decomposed further, humic acidifying, and with root system of plant reciprocation, soil property can be continuously available lifting.
The afforestation soil that the present invention is formed is safe in the environment.Contain heavy metal element in the raw-soil again and have
Evil organic substance, and glass, metal, plastics etc., essentially from sludge and landfill waste soil, by controlling sludge and landfill rubbish
The formula rate of rubbish soil so that the content of the nuisance such as heavy metal reaches national soil environment primary standard.Glass, metal, modeling
The fragment proportions such as material are not high, and below 5%, harm will not be brought to environment, is conducive to improving again the aeration of the raw-soil on the contrary
Etc. physical behavior.Therefore, the raw-soil again is safe in the environment.
Brief description of the drawings
Fig. 1 produces the method process chart of the afforestation raw-soil again for the present invention using municipal solid wastes.
Embodiment
The present invention is more fully illustrated below with embodiment.The present invention can be presented as a variety of multi-forms,
It is not construed as the exemplary embodiment for being confined to describe here.
Embodiment 1
The method of the utilization municipal solid wastes production afforestation raw-soil again in the present embodiment, can make full use of including city
City's domestic sewage sludge, city landfill house refuse, the municipal solid wastes of afforestation discarded object.
Wherein municipal sludge be preferably sewage treatment plant produce undressed wet mud, water content should 70% to
90%.Pollution of the Sludge deodorant reduction to production environment can be added if desired.
Landfill waste soil comes from refuse landfill, and preferably landfill of life waste is decomposed for more than 10 years through filling heap corruption
Formed, may comprising the debris such as stone, fragments of glass, wire, working of plastics, main component be through heap corruption be decomposed to form it is organic
Soil.Need to remove the debris such as the big stone of landfill waste, mixed mud block, working of plastics, residue is again through 2cm aperture sieves, sieve
Larger block part is gone, the base-material of the raw-soil is as configured again.
Afforestation discarded object is mainly the trimming of afforestation department, the trunk of hygienic cleaning, tree root, branch, leaf, miscellaneous
The materials such as grass, are crushed after collection through pulverizer, are crossed 2cm aperture sieves and are removed larger plant block part, as configure again the base of the raw-soil
Material.
By above-mentioned urban domestic sewage sludge, city landfill house refuse, afforestation discarded object, specific proportioning is 30%：
40%：30% volume accounting, is transported to mixer, can also add simultaneously if desired a small amount of microbial bacterial agent, humic acid fertilizer with
And soda lime, soil stabilizer etc., it is sufficiently mixed, is configured to the raw-soil again.
By the regeneration mound configured into not less than 3m3Mound, pours permeable, then is completely covered with plastic foil, out of doors heap
Put -6 months 3 months and can be used.
Addition microbial bacterial agent should be the rotten special microbial bacterial agent of heap, preferably by 5-10g/m3Ratio is added；Humic
Acid is commercially available humic acid fertilizer, preferably by 500-1000g/m3Ratio is added, and soda lime preferably presses 1 ~ 3kg/m3Ratio is added, soil
Stabilizer preferably presses 200-500 g/m3Addition.
After preparation, the native index of regeneration is that gravel mass fraction is 5.3%, and unit weight is 0.76g/cm3, pH value 7.1, organic matter
Mass fraction is 13.1%, and alkaline hydrolysis nitrogen content is 389mg/kg, and available phosphorus mass fraction is 278mg/kg, effective potassium quality
Fraction is 191mg/kg, and heavy metal mass fraction is Cd0.43 mg/kg, Zn77mg/kg, Pb32 mg/kg, and heavy metal reaches
《Standard of soil environment quality》（GB15618-1995）.By through examining qualified base-material to be packed.If test rating does not reach
It is required that, specific aim adjustment can be carried out by adding garden waste, turfy soil, rural area soil etc..The turfy soil of addition is domestic normal
Advise turfy soil.
Container cultivating seedlings will be used for by the raw-soil again, regeneration soil is filled in flowerpot, pours permeable, directly sowing is through low temperature sand storage
Tree-of-heaven, acer truncatum seed, turfy soil covering, sowing in May, daily management, 2 kinds of plant seed germinations are normal, are grown just after emerging
Often, do not occur withered burnt leaf situation, September investigation plant growth situation, plant strain growth is good, the average plant height 1.2m of tree-of-heaven, ingot
The average plant height 0.8m of maple.
Embodiment 2
The handling process of embodiment 2 is same as Example 1, is distinguished as the proportioning of raw material.Raw material are that city domestic sewage is dirty
Mud, city landfill house refuse, garden waste, specific proportioning is 20%：50%：30%.
After preparation, the native index of regeneration is that gravel mass fraction is 6.9%, and unit weight is 0.94, and pH value is 7.2, quality of organic matter
Fraction is 12.3%, the mg/kg of alkaline hydrolysis nitrogen content 320, the mg/kg of available phosphorus mass fraction 237, effective potassium mass fraction
158mg/kg；Heavy metal mass fraction is Cd0.38 mg/kg, Zn 68mg/kg, Pb31 mg/kg.
It the raw-soil will be planted again for Garden Greenland, and plant Chinese scholar tree, juniper big tree May, Routine Management, investigation life in October
Long situation, plant survival rate 100%, Chinese scholar tree and juniper healthy growth, do not occur dead leaf phenomenon.
Embodiment 3
The handling process of embodiment 3 is same as Example 1, is distinguished as the proportioning of raw material.Raw material are that city domestic sewage is dirty
Mud, city landfill house refuse, garden waste, specific proportioning is 40%：40%：20%.
After preparation, the native index of regeneration is that the native index of regeneration is that gravel mass fraction is 3.4%, and unit weight is 0.73, and pH value is
6.8, quality of organic matter fraction is 15.3%, and alkaline hydrolysis nitrogen content is 521mg/kg, and available phosphorus mass fraction is 378mg/kg,
Effective potassium mass fraction is 218mg/kg, and heavy metal mass fraction is Cd0.78 mg/kg, Zn 95mg/kg, Pb39 mg/kg.
Planting lawn will be used for by the raw-soil again, and plant rye grass June, investigate lawn Cheng Ping and growing state November, grass
Level ground grass well-grown, coverage rate is more than 95%, and rye grass leaf color jade green, summer does not occur burnt leaf situation.
Above-mentioned example is only intended to the explanation present invention, in addition, also a variety of different embodiments, and these are implemented
Mode be all those skilled in the art after comprehension inventive concept it is also envisioned that therefore, will not enumerate herein.
Claims (8)
1. a kind of method of the utilization municipal solid wastes production afforestation raw-soil again, the municipal solid wastes include city
City's domestic sewage sludge, domestic waste and afforestation discarded object；The urban domestic sewage sludge is sewage treatment plant
The undressed wet mud produced；The afforestation discarded object is the trimming of afforestation department, the trunk of hygienic cleaning, tree
Root, branch, leaf, weeds；The domestic waste comes from refuse landfill；It is characterised in that it includes following steps：
1）The debris such as stone big in the domestic waste, mixed mud block, working of plastics are removed, then through 2cm aperture sieves, sieve
Remove the domestic waste base-material of larger block part, as configuration greening soil；
2）It will be crushed after the afforestation waste gathering through pulverizer, cross 2cm aperture sieves and remove larger plant block, it is remaining
Thing is the afforestation discarded object base-material of configuration greening soil；
3）By urban domestic sewage sludge, domestic waste base-material, afforestation discarded object base-material, by percent by volume 20 ~
40%:30~60%:20 ~ 40%, which are transported to mixer, is stirred；
4）By the greening mound configured into not less than 5m3Mound, pours permeable, then is completely covered with plastic foil, and 3 are stacked out of doors
- 6 months individual month；
5）The greening soil be can be directly used for into Nursery Stock production, greening construction, or mixed with the existing soil in place
Conjunction is used, and is adapted to the various afforestation of plantation and is used plant.
2. the method for the afforestation raw-soil again is produced using municipal solid wastes as claimed in claim 1, it is characterised in that
The urban domestic sewage sludge water content 70% to 90%.
3. the method for the afforestation raw-soil again is produced using municipal solid wastes as claimed in claim 1, it is characterised in that
Sludge deodorant is added in the urban domestic sewage sludge.
4. the method for the afforestation raw-soil again is produced using municipal solid wastes as claimed in claim 1, it is characterised in that
The domestic waste is decomposed to form for more than 10 years for landfill through filling heap corruption, includes stone, fragments of glass, wire, plastics
The debris such as part, and the organic soil being decomposed to form through heap corruption.
5. the method for the afforestation raw-soil again is produced using municipal solid wastes as claimed in claim 1, it is characterised in that
Step 3）Middle addition microbial bacterial agent, humic acid fertilizer and soda lime, soil stabilizer, are sufficiently mixed, are configured to greening
With soil.
6. the method for the afforestation raw-soil again is produced using municipal solid wastes as claimed in claim 1, it is characterised in that
The microbial bacterial agent is the rotten special microbial bacterial agent of heap, is added in 5-10g/m3 ratios；Humic acid is commercially available humic acid fertilizer,
Added in 500-1000g/m3 ratios, soda lime is added in 1 ~ 3kg/m3 ratios, soil stabilizer is added by 200-500 g/m3.
7. the method for the afforestation raw-soil again is produced using municipal solid wastes as claimed in claim 1, it is characterised in that
To step 3）Base-material has been configured through lab analysis, unit weight, organic matter, NPK contents etc., heavy metal is determined；If test rating
Not up to requiring, specific aim adjustment can be carried out by adding garden waste, turfy soil, rural area soil etc.；The turfy soil of addition is state
The conventional turfy soil of production.
8. the method for the afforestation raw-soil again is produced using municipal solid wastes as claimed in claim 1, it is characterised in that
The unit weight of the greening soil is less than 1.0g/cm3, pH value 6.5-7.5, and quality of organic matter fraction is more than 10%, effective nitrogen content
More than 200 mg/kg, available phosphorus mass fraction is more than 100 mg/kg, and effective potassium mass fraction is more than 100mg/kg, and heavy metal reaches
Arrive《Standard of soil environment quality》（GB15618-1995）Primary standard.
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| CN109589785A (en) * | 2019-02-15 | 2019-04-09 | 中国科学院武汉岩土力学研究所 | The preparation method and application of the original position landfill yard VOCs efficient degradation carbon-based material based on castoff regenerative |
| CN110326518A (en) * | 2019-07-26 | 2019-10-15 | 贵州甲克虫环境科技有限责任公司 | A kind of matrix and its preparation process and the method for slope greening |
| CN111348961A (en) * | 2020-03-25 | 2020-06-30 | 厦门市液污生物技术有限公司 | Disposal method for producing first-class soil by using municipal sludge and municipal construction waste |
| CN112239313A (en) * | 2020-09-24 | 2021-01-19 | 杭州国泰环保科技股份有限公司 | Method for preparing landscaping special material by using sludge |
| CN112273190A (en) * | 2020-07-29 | 2021-01-29 | 北京林业大学 | Device for resource utilization of urban garden waste and urban sludge |
| CN114365671A (en) * | 2022-01-17 | 2022-04-19 | 易之泰生物科技(福建)有限公司 | Nonmetal solid waste reconstructed surface soil and preparation method thereof |
| CN115777487A (en) * | 2022-11-29 | 2023-03-14 | 上海市园林科学规划研究院 | Prepared soil prepared by using solid waste as raw material and application thereof |
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| CN112239313A (en) * | 2020-09-24 | 2021-01-19 | 杭州国泰环保科技股份有限公司 | Method for preparing landscaping special material by using sludge |
| CN114365671A (en) * | 2022-01-17 | 2022-04-19 | 易之泰生物科技(福建)有限公司 | Nonmetal solid waste reconstructed surface soil and preparation method thereof |
| CN115777487A (en) * | 2022-11-29 | 2023-03-14 | 上海市园林科学规划研究院 | Prepared soil prepared by using solid waste as raw material and application thereof |
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Application publication date: 20170811 |