CN103878172B - A kind of method of polycyclic aromatic hydrocarbons contaminated soil and city organic waste Combined Treatment - Google Patents
A kind of method of polycyclic aromatic hydrocarbons contaminated soil and city organic waste Combined Treatment Download PDFInfo
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- CN103878172B CN103878172B CN201410147551.0A CN201410147551A CN103878172B CN 103878172 B CN103878172 B CN 103878172B CN 201410147551 A CN201410147551 A CN 201410147551A CN 103878172 B CN103878172 B CN 103878172B
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- 239000002689 soil Substances 0.000 title claims abstract description 91
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 title claims abstract description 61
- 239000010815 organic waste Substances 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 49
- 238000011282 treatment Methods 0.000 title claims abstract description 19
- 239000002028 Biomass Substances 0.000 claims abstract description 38
- 239000000654 additive Substances 0.000 claims abstract description 38
- 230000000996 additive effect Effects 0.000 claims abstract description 35
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 17
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000010411 cooking Methods 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 15
- 238000000855 fermentation Methods 0.000 claims abstract description 10
- 230000004151 fermentation Effects 0.000 claims abstract description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 9
- 210000003608 fece Anatomy 0.000 claims abstract description 9
- 244000144972 livestock Species 0.000 claims abstract description 9
- 244000144977 poultry Species 0.000 claims abstract description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 8
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims abstract description 5
- 239000002023 wood Substances 0.000 claims abstract description 5
- 241000609240 Ambelania acida Species 0.000 claims abstract description 4
- 235000007164 Oryza sativa Nutrition 0.000 claims abstract description 4
- 239000010905 bagasse Substances 0.000 claims abstract description 4
- 239000010903 husk Substances 0.000 claims abstract description 4
- 235000009566 rice Nutrition 0.000 claims abstract description 4
- 240000007594 Oryza sativa Species 0.000 claims abstract 2
- 239000002245 particle Substances 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 abstract description 7
- 239000002910 solid waste Substances 0.000 abstract description 7
- 239000003337 fertilizer Substances 0.000 abstract description 4
- 239000010794 food waste Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 7
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 5
- 238000003756 stirring Methods 0.000 description 5
- 238000009264 composting Methods 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 238000003900 soil pollution Methods 0.000 description 4
- 239000002361 compost Substances 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 241000209094 Oryza Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- CKMXBZGNNVIXHC-UHFFFAOYSA-L ammonium magnesium phosphate hexahydrate Chemical compound [NH4+].O.O.O.O.O.O.[Mg+2].[O-]P([O-])([O-])=O CKMXBZGNNVIXHC-UHFFFAOYSA-L 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009267 in-vessel composting Methods 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000003516 soil conditioner Substances 0.000 description 1
- 239000003802 soil pollutant Substances 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of method of polycyclic aromatic hydrocarbons contaminated soil and city organic waste Combined Treatment, comprise and rubbish from cooking, mud, changing food waste, feces of livestock and poultry, polycyclic aromatic hydrocarbons contaminated soil and stalk, rice husk, wood chip, bark, bagasse and mushroom residue are carried out mixed-stacking fermentation; Wherein, carry out adding by diatomite, active carbon, FeCl in the process of mixed-stacking at described organic waste, polycyclic aromatic hydrocarbons contaminated soil and abandoned biomass
3and the additive of magnesia mixture composition, the present invention can process soil and city organic solid waste simultaneously, greatly reduces the cost of process separately.That material obtains is convenient, method simple, effectively, fast, soil after process need not add fertilizer or other additives just can be directly used in agricultural planting, while the polycyclic aromatic hydrocarbons contaminated soil of process also to city in a large amount of rubbish from cooking, mud, changing food waste, feces of livestock and poultry process, greatly reduce the occupation of land of these treatments of urban garbage.
Description
Technical field
The present invention relates to solid waste recycling field, in particular to a kind of method of polycyclic aromatic hydrocarbons contaminated soil and city organic waste Combined Treatment, be a kind of for organic solid waste Combined Treatment technology such as multiring aromatic hydrocarbon organic polluted soil and rubbish from cooking, mud, feces of livestock and poultry.
Background technology
Soil is the material base that the mankind depend on for existence, is the important component part of human ecological environment.Along with the development of industrial or agricultural and the expansion of urbanization process, agriculturally poisonous and harmful substance invasion and attack farmland in the widely using of fertilizer and pesticide, industrial wastewater, solid waste stack the leakage etc. of the poisonous and harmful substance that landfill causes, various polluter is constantly accumulated in soil by different approaches, purification capacity of soil day hastens towards saturation, soil quality obviously declines, and China's soil pollution situation has started to constitute a threat to Sustainable Use of Soil Resources and agricultural product ecological safety.According to statistics, the farmland that the whole nation is polluted by organic pollution (agricultural chemicals, petroleum hydrocarbon and PAHs) reaches 3.6 × 10
7hm
2, these contaminated sites show that type is many, pollution sources are complicated, endanger the features such as wide, and the grain that the whole nation is lost because of soil pollution every year reaches 1.2 × 10
10kg.Soil pollution not only causes quality of agricultural product to decline, and is detrimental to health, and also causes air and water body environment pollution.Soil pollution has typical time bomb character, once large area outburst, impact difficult to the appraisal will be caused on national sustainable development, therefore, how rationally to dispose contaminated soil and become current urgent problem, carry out the research of contaminated soil disposal technology very urgent.The recovery technique research of contaminated soil is becoming the emphasis of countries in the world research, with
Yang Yeshi China is in an important topic of field of Environment Protection and research direction.
Multiring aromatic hydrocarbon organic pollution in soil, as the special soil pollutant of a class, has it to be different from the polluting property of other pollutants, and because of its complicated component and harmfulness, is listed in the toxic pollutant that potentially danger in environment is large, answer priority acccess control.Therefore, external many developed countries expressly provide, to being subject to
Multiring aromatic hydrocarbon contaminated soil must carry out appropriate disposal, to ensure the safety of biology and environment thereof.
Domesticly at present the treatment technology of organic contamination soil to be mainly contained: Thermal desorption technology, high-level oxidation technology and biological extracting, biological prosthetic etc.Except the soil after biological prosthetic can continue agricultural except, the soil after the technical finesses such as Thermal desorption technology, advanced oxidation can agricultural profit after all needing to add fertilizer or other additives
With.Therefore, administering method is more effectively lacked.
Summary of the invention
The object of the present invention is to provide a kind of method of polycyclic aromatic hydrocarbons contaminated soil and city organic waste Combined Treatment, the present invention is directed to multiring aromatic hydrocarbon organic polluted soil, adopt the mode by Polluted Soil and organic waste Combined Treatment, process soil in position, the soil after process can be directly used in agricultural planting etc.
To achieve these goals, technical scheme of the present invention is:
A method for polycyclic aromatic hydrocarbons contaminated soil and city organic waste Combined Treatment, is included under environment temperature is not less than the condition of subzero 10 degrees Celsius and organic waste, polycyclic aromatic hydrocarbons contaminated soil and abandoned biomass is carried out mixed-stacking fermentation; Wherein, carry out adding by diatomite, active carbon, FeCl in the process of mixed-stacking at described organic waste, polycyclic aromatic hydrocarbons contaminated soil and abandoned biomass
3and the additive of magnesia mixture composition, the ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 40 ~ 50
Polycyclic aromatic hydrocarbons contaminated soil: 25 ~ 40
Abandoned biomass: 5 ~ 10
Additive: 5 ~ 30
Wherein: described organic waste comprises: rubbish from cooking, mud, feces of livestock and poultry or combination; Described abandoned biomass comprises: stalk, rice husk, wood chip, bark, bagasse and mushroom residue or combination.
Method is further: described diatomite, active carbon, FeCl
3and the quality proportioning of magnesia is 2:4:1:1.
Method is further: the moisture control after described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive mixed-stacking is between for 55%-60%.
Method is further: described accumulation is piled up under the slot type opened wide or closed storehouse formula condition, and the width of described groove is 5 ~ 6m, and the height of groove is 2.0 ~ 2.5m; The width in described storehouse is 9 ~ 10m, and the height in storehouse is 2.5 ~ 3.0m; Described accumulation adopts trapezoidal bar buttress mode to pile up, and the width of trapezoidal bar buttress is 4 ~ 6m, is highly 1.5 ~ 2.0m.
Method is further: the process of described fermentation is: by the trapezoidal bar buttress turning in every 3 to 7 days after piling up once, stop turning after 3 weeks, in buttress, temperature rises to after more than 55 degree and keeps at least 5 days, fermentation ends.
The present invention compared with prior art tool has the following advantages: can process soil and city organic solid waste simultaneously, greatly reduces the cost of process separately.That material obtains is convenient, method simple, effectively, fast, soil after process need not add fertilizer or other additives just can be directly used in agricultural planting, while the polycyclic aromatic hydrocarbons contaminated soil of process also to city in a large amount of rubbish from cooking, mud, changing food waste, feces of livestock and poultry process, greatly reduce the occupation of land of these treatments of urban garbage.
Below in conjunction with embodiment, the present invention is described in detail.
Detailed description of the invention
A kind of method of polycyclic aromatic hydrocarbons contaminated soil and city organic waste Combined Treatment: described method is included under environment temperature is not less than the condition of subzero 10 degrees Celsius carries out mixed-stacking fermentation by organic waste, polycyclic aromatic hydrocarbons contaminated soil and abandoned biomass; Wherein, carry out adding by diatomite, active carbon, FeCl in the process of mixed-stacking at described organic waste, polycyclic aromatic hydrocarbons contaminated soil and abandoned biomass
3and the additive of magnesia mixture composition, the ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 40 ~ 50
Polycyclic aromatic hydrocarbons contaminated soil: 25 ~ 40
Abandoned biomass: 5 ~ 10
Additive: 5 ~ 30
Wherein: described organic waste comprises: rubbish from cooking, mud, feces of livestock and poultry or combination; Described abandoned biomass comprises: stalk, rice husk, wood chip, bark, bagasse and mushroom residue or combination.
In embodiment: described diatomite, active carbon, FeCl
3and the quality proportioning of magnesia (weight fraction ratio) is 2:4:1:1, the Main Function of additive removes the stink in composting process, wherein: the effect of diatomite, active carbon is the foul smell volatilized in absorption composting process, FeCl
3and the effect of magnesia generates guanite crystal with the ammonia in material.
In embodiment: the moisture control after described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive mixed-stacking is between for 55%-60%.
In embodiment: described accumulation is piled up under the slot type opened wide or closed storehouse formula condition, and the width of described groove is 5 ~ 6m, and the height of groove is 2.0 ~ 2.5m; The width in described storehouse is 9 ~ 10m, and the height in storehouse is 2.5 ~ 3.0m; Described accumulation adopts trapezoidal bar buttress mode to pile up, and the width of trapezoidal bar buttress is 4 ~ 6m, is highly 1.5 ~ 2.0m.
In embodiment: the process of described fermentation is: the trapezoidal bar after piling up is piled up neatly turning in every 3 to 7 days once, turning is stopped after 3 weeks, in buttress, temperature rises to after more than 55 degree and keeps at least 5 days, fermentation ends, usually temperature is remained between 55 degrees Celsius to 70 degrees Celsius.
Said method have employed bar buttress formula compost, trough composting or storehouse formula compost, polycyclic aromatic hydrocarbon organic contamination soil is mixed according to different proportion with the organic solid waste such as rubbish from cooking, mud, feces of livestock and poultry, as degraded and the in-situ treatment mode of polycyclic aromatic hydrocarbon organic contamination soil, contaminated soil after gained process can directly use as agricultural planting soil, soil and city organic solid waste can be processed simultaneously, greatly reduce the cost of process separately.
Be destitute of smell in this method banking process and distribute; Pile up multiring aromatic hydrocarbon organic pollution in last finished product and obtain decomposition as the carbon source of compost microbe; Usually, after surrounding of banking up, the degrading polycyclic aromatic hydrocarbons rate of soil reaches national Soil standard; Product can directly Planting Crops or can be used as soil conditioner use.
It is below the embodiment of several reality.
Embodiment 1:
The ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 50
Polycyclic aromatic hydrocarbons contaminated soil: 30
Abandoned biomass: 10
Additive: 10
That is: the moisture content getting 500Kg is the mud of 80%, mix 100Kg, particle diameter is the agricultural stalk of 10cm, send into mixer fully to mix together with the polycyclic aromatic hydrocarbons contaminated soil of 300Kg after removing foreign material and the additive of 100Kg, stir after 10 minutes, heap is set to wide 6m, the bar buttress of high 1.5m, heap postpone turning in every 4 days once, turning is stopped after 3 weeks, temperature in heap controls between 55 degree to 65 degree, and after surrounding of banking up, the polycyclic aromatic hydrocarbon in soil reduces to 0.02mg/kg, soil as planting soil, direct Planting Crops.
Embodiment 2:
The ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 45
Polycyclic aromatic hydrocarbons contaminated soil: 20
Abandoned biomass: 10
Additive: 20.
That is: the moisture content getting 450Kg is the rubbish from cooking of 70%, mix 100Kg, particle diameter is the mushroom residue of 6cm, send into mixer with the polycyclic aromatic hydrocarbons contaminated soil of the 200Kg after impurity elimination thing and 200Kg additive and fully mix, stir after 10 minutes, send into into wide 5m, the trough composting storehouse of high 2.0m, heap postpone turning in every 6 days once, stops turning after 3 weeks, temperature in heap is between 55 degree to 65 degree, after surrounding of banking up, the polycyclic aromatic hydrocarbon in soil reduces to 0.01mg/kg, direct Planting Crops.
Embodiment 3:
The ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 45
Polycyclic aromatic hydrocarbons contaminated soil: 30
Abandoned biomass: 15
Additive: 10.
That is: the moisture content getting 450Kg is the feces of livestock and poultry of 60%, mix 150Kg, particle diameter is the wood chip of 8cm, with remove after building waste, large part foreign material, the polycyclic aromatic hydrocarbons contaminated soil of 300Kg and the additive of 100Kg, send into mixer fully to mix, stir after 10 minutes, send into in-vessel composting system, heap is set to wide 10m, the heap body of high 2.5m, heap postpone turning in every 5 days once, stops turning after 3 weeks, temperature in heap is between 55 degree to 65 degree, after surrounding of banking up, the polycyclic aromatic hydrocarbon in soil reduces to 0.005mg/kg, direct Planting Crops.
Embodiment 4:
The ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 50, wherein: mud 30, rubbish from cooking 20
Polycyclic aromatic hydrocarbons contaminated soil: 30
Abandoned biomass: 10
Additive: 10.
That is: the moisture content getting 300Kg is the mud of 80%, the moisture content getting 200Kg is the rubbish from cooking of 70%, mix 100Kg, particle diameter is the agricultural stalk of 10cm and the additive of 100Kg, with remove building waste, large part foreign material after, the polycyclic aromatic hydrocarbons contaminated soil of 300Kg sends into mixer and fully mixes, stir after 10 minutes, heap is set to wide 6m, the bar buttress of high 2m, the every 6d turning of heap postpone once, stops turning after 3 weeks.After surrounding of banking up, the temperature in heap is between 55 degree to 65 degree, and the polycyclic aromatic hydrocarbon in soil reduces to 0.02mg/kg, uses as the soil improvement after Thermal desorption.
Embodiment 5:
The ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 50
Polycyclic aromatic hydrocarbons contaminated soil: 30
Abandoned biomass: 10
Additive: 10.
That is: the moisture content getting 500Kg is the rubbish from cooking of 80%, mix the agricultural stalk that 100Kg particle diameter is 10cm, send into mixer fully to mix together with the polycyclic aromatic hydrocarbons contaminated soil of 300Kg and the additive of 100Kg, stir after 10 minutes, heap is set to wide 6m, the bar buttress of high 1.5m, the every 7d turning of heap postpone once, stops turning after 3 weeks.Temperature in heap is between 55 degree to 65 degree, and after surrounding of banking up, the polycyclic aromatic hydrocarbon in soil reduces to 0.03mg/kg, uses as the soil improvement after Thermal desorption.
Claims (6)
1. a method for polycyclic aromatic hydrocarbons contaminated soil and city organic waste Combined Treatment, is included under environment temperature is not less than the condition of subzero 10 degrees Celsius and organic waste, polycyclic aromatic hydrocarbons contaminated soil and abandoned biomass is carried out mixed-stacking fermentation; It is characterized in that, carry out adding by diatomite, active carbon, FeCl in the process of mixed-stacking at described organic waste, polycyclic aromatic hydrocarbons contaminated soil and abandoned biomass
3and the additive of magnesia mixture composition, the ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 40 ~ 50
Polycyclic aromatic hydrocarbons contaminated soil: 25 ~ 40
Abandoned biomass: 5 ~ 10
Additive: 5 ~ 30
Wherein: described organic waste comprises: rubbish from cooking, mud, feces of livestock and poultry or combination; Described abandoned biomass comprises: stalk, rice husk, wood chip, bark, bagasse, mushroom residue or combination;
Described diatomite, active carbon, FeCl
3and the quality proportioning of magnesia is 2:4:1:1;
Moisture control after described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive mixed-stacking is between for 55%-60%.
2. the method for a kind of polycyclic aromatic hydrocarbons contaminated soil according to claim 1 and city organic waste Combined Treatment, it is characterized in that, described accumulation is piled up under the slot type opened wide or closed storehouse formula condition, and the width of described groove is 5 ~ 6m, and the height of groove is 2.0 ~ 2.5m; The width in described storehouse is 9 ~ 10m, and the height in storehouse is 2.5 ~ 3.0m; Described accumulation adopts trapezoidal bar buttress mode to pile up, and the width of trapezoidal bar buttress is 4 ~ 6m, is highly 1.5 ~ 2.0m.
3. the method for a kind of polycyclic aromatic hydrocarbons contaminated soil according to claim 2 and city organic waste Combined Treatment, it is characterized in that, the process of described fermentation is: the trapezoidal bar after piling up is piled up neatly turning in every 3 to 7 days once, turning is stopped after 3 weeks, in buttress, temperature rises to after more than 55 degree and keeps at least 5 days, fermentation ends.
4. the method for a kind of polycyclic aromatic hydrocarbons contaminated soil according to claim 1 and city organic waste Combined Treatment, is characterized in that, described organic waste to be moisture content be 80% the agricultural stalk of mud, abandoned biomass to be particle diameter be 10cm; The ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 50
Polycyclic aromatic hydrocarbons contaminated soil: 30
Abandoned biomass: 10
Additive: 10.
5. the method for a kind of polycyclic aromatic hydrocarbons contaminated soil according to claim 1 and city organic waste Combined Treatment, it is characterized in that, the agricultural stalk of described organic waste to be moisture content the be mud of 80% and rubbish from cooking mixture, the abandoned biomass of 70% to be particle diameter be 10cm; The ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 50, wherein: mud 30, rubbish from cooking 20
Polycyclic aromatic hydrocarbons contaminated soil: 30
Abandoned biomass: 10
Additive: 10.
6. the method for a kind of polycyclic aromatic hydrocarbons contaminated soil according to claim 1 and city organic waste Combined Treatment, is characterized in that, described organic waste to be moisture content be 80% the agricultural stalk of rubbish from cooking, abandoned biomass to be particle diameter be 10cm; The ratio of weight and number of described organic waste, polycyclic aromatic hydrocarbons contaminated soil, abandoned biomass and additive is:
Organic waste: 50
Polycyclic aromatic hydrocarbons contaminated soil: 30
Abandoned biomass: 10
Additive: 10.
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