CN103936311A - Method of combination of joint treatment of organic polluted soil and municipal wastes with cement kiln - Google Patents
Method of combination of joint treatment of organic polluted soil and municipal wastes with cement kiln Download PDFInfo
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- CN103936311A CN103936311A CN201410147439.7A CN201410147439A CN103936311A CN 103936311 A CN103936311 A CN 103936311A CN 201410147439 A CN201410147439 A CN 201410147439A CN 103936311 A CN103936311 A CN 103936311A
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- organic contamination
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- soil
- cement kiln
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- 239000002689 soil Substances 0.000 title claims abstract description 124
- 239000002699 waste material Substances 0.000 title claims abstract description 95
- 239000004568 cement Substances 0.000 title claims abstract description 70
- 238000000034 method Methods 0.000 title claims abstract description 39
- 238000011282 treatment Methods 0.000 title abstract description 5
- 239000000654 additive Substances 0.000 claims abstract description 64
- 230000000996 additive effect Effects 0.000 claims abstract description 64
- 238000002309 gasification Methods 0.000 claims abstract description 18
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 15
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 238000011109 contamination Methods 0.000 claims description 72
- 239000000203 mixture Substances 0.000 claims description 25
- 239000002893 slag Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- 239000010794 food waste Substances 0.000 claims description 16
- 238000011284 combination treatment Methods 0.000 claims description 15
- 239000010791 domestic waste Substances 0.000 claims description 9
- 239000003209 petroleum derivative Substances 0.000 claims description 8
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 7
- 239000004571 lime Substances 0.000 claims description 7
- 239000000575 pesticide Substances 0.000 claims description 7
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 7
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 239000003987 organophosphate pesticide Substances 0.000 claims description 5
- 239000010881 fly ash Substances 0.000 claims description 4
- 230000000361 pesticidal effect Effects 0.000 claims description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 21
- 239000002957 persistent organic pollutant Substances 0.000 abstract description 13
- 239000003245 coal Substances 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 238000003756 stirring Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 5
- 238000002360 preparation method Methods 0.000 abstract description 4
- 238000010304 firing Methods 0.000 abstract description 2
- 238000000197 pyrolysis Methods 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000003473 refuse derived fuel Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 6
- 238000001125 extrusion Methods 0.000 description 6
- 239000002910 solid waste Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000003900 soil pollution Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 231100001261 hazardous Toxicity 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000003905 agrochemical Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000009545 invasion Effects 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 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
- 239000003802 soil pollutant Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
Landscapes
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a method of combination of joint treatment of organic polluted soil and municipal wastes with a cement kiln. The method comprises a PDF (Refuse Derived Fuel) preparation process and a cement kiln production process. In the cement kiln production process, the combustion-supporting air fed into a decomposing furnace at the tail part of the kiln to serve as tertiary air is provided. The PDF preparation process comprises the following steps: mixing, stirring and squeezing the municipal wastes, the organic polluted soil and an additive so as to form the PDF, and then feeding the PDF into the cement kiln for pyrolysis gasification. According to the method, based on the treatment modes of POPs (Persistent Organic Pollutants) polluted soil and the municipal solid wastes, the heat energy in the POPs polluted soil and the municipal solid wastes is utilized; and the treated polluted soil can be directly prepared into cement in a firing manner or is taken as an accessory material of a cement raw material, namely, the polluted soil and the municipal solid wastes are simultaneously treated, so that the cost of individual treatment of the polluted soil and the municipal solid wastes is reduced. In addition, the coal consumption of the cement kiln is decreased; and the discharge of nitrogen oxides in the cement kiln is reduced.
Description
Technical field
The present invention relates to solid waste recycling field, particularly a kind of organic contamination soil and urban waste
The method that thing combination treatment is combined with cement kiln is for city solid waste combination treatment technology such as POPs organic polluted soil and domestic waste, mud, changing food waste, old rubbish.
Background technology
Soil is the basic substance 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, in agricultural, in being widely used of fertilizer and pesticide, trade effluent, hazardous and noxious substances invasion and attack farmland, solid waste are stacked the leakage etc. of the hazardous and noxious substances that landfill causes, make various pollution substances by different approaches constantly accumulation in soil, purification capacity of soil day hastens towards saturation, soil quality obviously declines, and China's soil pollution situation has started Sustainable Use of Soil Resources and agricultural-food ecological safety to constitute a threat to.According to statistics, the farmland that the whole nation is polluted by organic pollutant (agricultural chemicals, petroleum hydrocarbon and PAHs) reaches 3.6 * 10
7hm
2, these contaminated sites show that type is many, source of pollution are complicated, endanger the features such as wide, and the grain that lose because of soil pollution every year in the whole nation reaches 1.2 * 10
10kg.Soil pollution not only causes quality of agricultural product to decline, and is detrimental to health, and also causes atmosphere and water body environment pollution.Soil pollution has typical time bomb character, once big area outburst will cause impact difficult to the appraisal to national sustainable development, therefore, how rationally disposing contaminated soil becomes current urgent problem, carries 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, and same Ye Shi China is in important topic and the research direction of field of Environment Protection.
POPs organic pollutant in soil, as the special soil pollutant of a class, has its polluting property that is different from other pollutents, and because of its complicated component and hazardness, is listed in the toxic pollutent that potentially danger in environment is large, should preferentially control.Therefore, external many developed countries expressly provide, to being subject to many cyclophanes
The soil of hydrocarbon contamination must carry out appropriate disposal, to guarantee the safety of biology and environment thereof.
The domestic at present treatment technology of POPs Polluted Soil being mainly contained: hot analytic technique, high-level oxidation technology and biological extracting, biological restoration etc.But each technology all has certain limitation, and the topsoil of pyrolysis after analysing can not be ignored.
Summary of the invention
The object of the present invention is to provide a kind of organic contamination soil and urban waste combination treatment and cement kiln knot
The method of closing.Be for POPs contaminated soil, adopt the mode of Polluted Soil and urban waste combination treatment, and utilize cement kiln, reach the simultaneously treated object of Some Organic Pollutants.
To achieve these goals, technical scheme of the present invention is: a kind of method that organic contamination soil is combined with cement kiln with urban waste combination treatment, comprise that RDF makes and cement kiln production technique, in described cement kiln production technique, include and send into the interior combustion air as tertiary air of kiln tail decomposing furnace, wherein, it is that urban waste, organic contamination soil, the extruding of additive mix and blend are formed to RDF that described RDF makes, the moisture control of described RDF, between 20%-40%, is then sent into RDF cement kiln pyrolytic gasification; The weight fraction of described urban waste, machine Polluted Soil, additive compares respectively:
Urban waste: 10～70
Organic contamination soil: 15～35
Additive: 5～35
Wherein: described urban waste is domestic waste, mud, changing food waste, old rubbish; Described organic contamination soil is polycyclic aromatic hydrocarbons contaminated soil, petroleum hydrocarbon contaminated soil, organic pesticide Polluted Soil; Described additive is carbide slag, flyash.
Method is further: described RDF is sent in described cement kiln tail decomposing furnace, introduce cement kiln tertiary air, the air quantity of controlling tertiary air is RDF 25%～30% while fully burning, and the pyrolytic gasification temperature in kiln tail decomposing furnace is controlled at 650 degrees Celsius to 750 degrees Celsius.
Method is further: the weight fraction of described urban waste, organic contamination soil, additive is than respectively:
Urban waste: 65
Organic contamination soil: 25
Additive: 5
Wherein: described urban waste is to be crushed to the domestic waste that 10cm granularity is following, water ratio is 60%; Described organic contamination soil is except the polycyclic aromatic hydrocarbons contaminated soil after building waste; Described additive is carbide slag.
Method is further: the weight fraction of described urban waste, organic contamination soil, additive is than respectively:
Urban waste: 75
Organic contamination soil: 25
Additive: 5
Wherein: described urban waste is that water ratio is 80% mud; Described organic contamination soil is except the petroleum hydrocarbon contaminated soil after building waste; Described additive is carbide slag.
Method is further: the weight fraction of described urban waste, organic contamination soil, additive is than respectively:
Urban waste: 65
Organic contamination soil: 25
Additive: 10
Wherein: described urban waste is that water ratio is 70% changing food waste; Described organic contamination soil is except the organic pesticide Polluted Soil after building waste; Described additive is carbide slag.
Method is further: the weight fraction of described urban waste, organic contamination soil, additive is than respectively:
Urban waste: 60
Organic contamination soil: 30
Additive: 10
Wherein: described urban waste is to be crushed to the old rubbish that 10cm granularity is following, water ratio is 35%; Described organic contamination soil is except the organophosphorus pesticide pollution soil after building waste; Described additive is carbide slag.
Method is further: the weight fraction of described urban waste, organic contamination soil, additive is than respectively:
Urban waste: 75
Organic contamination soil: 15
Additive: 10
Wherein: described urban waste is that water ratio is 80% changing food waste and the combination of domestic refuse and lime dewatered sludge, changing food waste, domestic refuse and the combination of lime dewatered sludge are than being 50:25; Described organic contamination soil is except the DDT pesticidal contamination soil after building waste; Described additive is carbide slag.
The present invention compared with prior art tool has the following advantages: as the processing mode of POPs contaminated soil and municipal solid wastes, not only can utilize the heat energy in POPs contaminated soil and municipal solid wastes, contaminated soil after gained is processed is cement baking or use as cement raw mix proportioning directly, can locate simultaneously
Manage soil and city solid waste, greatly reduce the cost of individual curing.This method also can reduce cement kiln coal consumption, reduces discharge of nitrogen oxide in cement kiln.
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment
A kind of method that organic contamination soil is combined with cement kiln with urban waste combination treatment, comprise RDF(solid waste derivatived fuel) make and cement kiln production technique, in described cement kiln production technique, include and send into the interior combustion air as tertiary air of kiln tail decomposing furnace, wherein, it is that urban waste, organic contamination soil, the extruding of additive mix and blend are formed to RDF that described RDF makes, and then RDF is sent into cement kiln pyrolytic gasification; The weight fraction of described urban waste, machine Polluted Soil, additive compares respectively:
Urban waste: 10～70
Organic contamination soil: 15～35
Additive: 5～35
Wherein: described urban waste is domestic waste, mud, changing food waste, old rubbish; Described organic contamination soil is polycyclic aromatic hydrocarbons contaminated soil, petroleum hydrocarbon contaminated soil, organic pesticide Polluted Soil; Described additive is carbide slag, flyash.
In embodiment: described RDF is sent in described cement kiln tail decomposing furnace, introduce cement kiln tertiary air, the air quantity of controlling tertiary air is RDF 25%～30% while fully burning, and the pyrolytic gasification temperature in kiln tail decomposing furnace is controlled at 650 degrees Celsius to 750 degrees Celsius.
In embodiment: the moisture control of described RDF is between 20%-40%.
In embodiment: described quality coal in cement kiln systems tertiary air is to derive from gas blower to send into freezing air and the grog of grate-cooler and carry out the high temperature air after heat exchange; This high temperature air is the vertical shaft that is connected with grate-cooler through rotary kiln, enters the kiln head cover of rotary kiln.Wherein a part enters rotary kiln as the combustion air of kiln hood, and remaining part is described tertiary air.Tertiary air is sent into the interior combustion air as fuel and incineration firing of kiln tail decomposing furnace through airduct.The temperature range of tertiary air is 650 ℃～900 ℃, and the flow of unit grog is 0.48～0.60Nm3/kg grog.
The processing that aforesaid method carries out POPs Polluted Soil: its step is further summarized as follows:
A, domestic waste, mud, changing food waste, old rubbish etc. are removed after foreign material, sorting, fragmentation, proportionally mix with the Polluted Soil of removing after building waste, mix the carbide slag, flyash etc. of 5-10% as additive, the water ratio of mixture is advisable between 20%-40%;
B, several mixtures are sent into stirrer, mix;
C, employing egg-type coal briquetting machine, by mixture extrusion molding, are prepared into RDF;
D, the RDF of preparation is sent into cement kiln decomposing furnace bottom, adjust the air quantity of decomposing furnace and control the oxygen level of decomposing furnace, make RDF gasification.Or, the RDF of preparation is sent into the plug-in vapourizing furnace of cement kiln, introduce tertiary air, 25 ~ 30% when the air quantity of controlling tertiary air is fully burning, Control for Kiln Temperature, in 700 degree left and right, makes RDF gasification.
After E, gasification, combustion gas enters decomposing furnace, and end slag can be used as cement mixture configuration cement or uses as cement kiln raw meal proportioning.Wherein, the addition as cement mixture configuration cement should not surpass 20%.
Below the embodiment of several collectives:
Embodiment 1:
Get 650Kg, water ratio is 60% domestic waste, through sorting, remove foreign material, after being crushed to below 10cm, mix 250Kg, remove the polycyclic aromatic hydrocarbons contaminated soil after building waste, then add the carbide slag that mixes 50Kg as additive, send into stirrer and stir after 10 minutes, adopt flat die forming machine by mixture extrusion molding, be prepared into RDF.RDF is sent into cement kiln decomposing furnace bottom, and control oxygen level, below 5%, makes RDF gasification, and the inflammable gas that gasification produces enters and decomposes kiln burning together with tertiary air, and the residue after gasification directly enters rotary kiln and is prepared into cement.After this processes, cement kiln Reducing Coal Consumption 5%, discharge of nitrogen oxide in cement kiln total amount reduces more than 15%.
Be equivalent to the weight fraction ratio of described urban waste, organic contamination soil, additive respectively:
Urban waste: 65
Organic contamination soil: 25
Additive: 5
Wherein: described urban waste is to be crushed to the domestic waste that 10cm granularity is following, water ratio is 60%; Described organic contamination soil is except the polycyclic aromatic hydrocarbons contaminated soil after building waste; Described additive is carbide slag.
Embodiment 2:
Get mud 750Kg, that water ratio is 80%, mix 250Kg, remove the petroleum hydrocarbon contaminated soil after building waste, then add the carbide slag that mixes 50Kg as additive, send into stirrer and stir after 10 minutes, adopt flat die forming machine by mixture extrusion molding, be prepared into RDF.RDF is sent into the plug-in vapourizing furnace of cement kiln, pass into tertiary air, the air quantity of controlling tertiary air is 10000Nm
3below/h, controlling furnace temperature is 700 degree, makes RDF gasification, and the inflammable gas that gasification produces enters decomposition kiln and burns, and residue enters cement kiln raw mill.After this processes, cement kiln is saved 20% siliceous raw material, Reducing Coal Consumption 8%, and discharge of nitrogen oxide in cement kiln total amount reduces more than 20%.
Be equivalent to the weight fraction ratio of described urban waste, organic contamination soil, additive respectively:
Urban waste: 75
Organic contamination soil: 25
Additive: 5
Wherein: described urban waste is that water ratio is 80% mud; Described organic contamination soil is except the petroleum hydrocarbon contaminated soil after building waste; Described additive is carbide slag.
Embodiment 3:
Get 650Kg, water ratio is 70% changing food waste, through sorting, remove foreign material, after being crushed to below 10cm, mix organophosphorus pesticide pollution 250Kg, that remove after building waste native, then add the carbide slag that mixes 100Kg as additive, send into stirrer and stir after 10 minutes, adopt flat die forming machine by mixture extrusion molding, be prepared into RDF.RDF is sent into the plug-in vapourizing furnace of cement kiln, pass into tertiary air, the air quantity of controlling tertiary air is 9000Nm
3/ h, controlling furnace temperature is 700 degree, makes RDF gasification, and the inflammable gas that gasification produces enters decomposition kiln and burns, and residue enters cement kiln raw mill.After this processes, cement kiln is saved 20% siliceous raw material, Reducing Coal Consumption 3.5%, and discharge of nitrogen oxide in cement kiln total amount reduces more than 10%.
Be equivalent to the weight fraction ratio of described urban waste, organic contamination soil, additive respectively:
Urban waste: 65
Organic contamination soil: 25
Additive: 10
Wherein: described urban waste is that water ratio is 70% changing food waste; Described organic contamination soil is except the organic pesticide Polluted Soil after building waste; Described additive is carbide slag.
Embodiment 4:
Get old rubbish 600Kg, that water ratio is 35%, through sorting, remove foreign material, after being crushed to below 10cm, mix organophosphorus pesticide pollution 300Kg, that remove after building waste native, then add the carbide slag that mixes 100Kg as additive, send into stirrer and stir after 10 minutes, adopt flat die forming machine by mixture extrusion molding, be prepared into RDF.RDF is sent into cement kiln decomposing furnace bottom, control oxygen level, residue enters rotary kiln cement baking.After this processes, cement kiln is saved 30% siliceous raw material, Reducing Coal Consumption 1.5%, and discharge of nitrogen oxide in cement kiln total amount reduces more than 10%.
Be equivalent to the weight fraction ratio of described urban waste, organic contamination soil, additive respectively:
Urban waste: 60
Organic contamination soil: 30
Additive: 10
Wherein: described urban waste is to be crushed to the old rubbish that 10cm granularity is following, water ratio is 35%; Described organic contamination soil is except the organophosphorus pesticide pollution soil after building waste; Described additive is carbide slag.
Embodiment 5:
The changing food waste that the water ratio of getting 100Kg is 80% and the domestic refuse of 400Kg, through sorting, remove foreign material, after being crushed to below 10cm, mix the lime dewatered sludge of 250Kg, the DDT pesticidal contamination after the removal building waste of 150Kg is native, then add the carbide slag that mixes 100Kg as additive, send into stirrer and stir after 10 minutes, adopt flat die forming machine by mixture extrusion molding, be prepared into RDF.RDF is sent into cement kiln decomposing furnace bottom, control oxygen level, residue enters rotary kiln cement baking.After this processes, cement kiln is saved 35% siliceous raw material, Reducing Coal Consumption 2.5%, and discharge of nitrogen oxide in cement kiln total amount reduces more than 15%.
Be equivalent to the weight fraction ratio of described urban waste, organic contamination soil, additive respectively:
Urban waste: 75
Organic contamination soil: 15
Additive: 10
Wherein: described urban waste is that water ratio is 80% changing food waste and the combination of domestic refuse and lime dewatered sludge, changing food waste, domestic refuse and the combination of lime dewatered sludge are than being 50:25; Described organic contamination soil is except the DDT pesticidal contamination soil after building waste; Described additive is carbide slag.
Claims (8)
1. the method that organic contamination soil is combined with cement kiln with urban waste combination treatment, comprise that RDF makes and cement kiln production technique, in described cement kiln production technique, include and send into the interior combustion air as tertiary air of kiln tail decomposing furnace, it is characterized in that, it is that urban waste, organic contamination soil, the extruding of additive mix and blend are formed to RDF that described RDF makes, the moisture control of described RDF, between 20%-40%, is then sent into RDF cement kiln pyrolytic gasification; The weight fraction of described urban waste, machine Polluted Soil, additive compares respectively:
Urban waste: 10～70
Organic contamination soil: 15～35
Additive: 5～35
Wherein: described urban waste is domestic waste, mud, changing food waste, old rubbish; Described organic contamination soil is polycyclic aromatic hydrocarbons contaminated soil, petroleum hydrocarbon contaminated soil, organic pesticide Polluted Soil; Described additive is carbide slag, flyash.
2. the method that a kind of organic contamination soil according to claim 1 is combined with cement kiln with urban waste combination treatment, it is characterized in that, described RDF is sent in described cement kiln tail decomposing furnace, introduce cement kiln tertiary air, the air quantity of controlling tertiary air is RDF 25%～30% while fully burning, and the pyrolytic gasification temperature in kiln tail decomposing furnace is controlled at 650 degrees Celsius to 750 degrees Celsius.
3. the method that a kind of organic contamination soil according to claim 2 is combined with cement kiln with urban waste combination treatment, is characterized in that, the weight fraction of described urban waste, organic contamination soil, additive compares respectively:
Urban waste: 65
Organic contamination soil: 25
Additive: 5
Wherein: described urban waste is to be crushed to the domestic waste that 10cm granularity is following, water ratio is 60%; Described organic contamination soil is except the polycyclic aromatic hydrocarbons contaminated soil after building waste; Described additive is carbide slag.
4. the method that a kind of organic contamination soil according to claim 2 is combined with cement kiln with urban waste combination treatment, is characterized in that, the weight fraction of described urban waste, organic contamination soil, additive compares respectively:
Urban waste: 75
Organic contamination soil: 25
Additive: 5
Wherein: described urban waste is that water ratio is 80% mud; Described organic contamination soil is except the petroleum hydrocarbon contaminated soil after building waste; Described additive is carbide slag.
5. the method that a kind of organic contamination soil according to claim 2 is combined with cement kiln with urban waste combination treatment, is characterized in that, the weight fraction of described urban waste, organic contamination soil, additive compares respectively:
Urban waste: 65
Organic contamination soil: 25
Additive: 10
Wherein: described urban waste is that water ratio is 70% changing food waste; Described organic contamination soil is except the organic pesticide Polluted Soil after building waste; Described additive is carbide slag.
6. the method that a kind of organic contamination soil according to claim 2 is combined with cement kiln with urban waste combination treatment, is characterized in that, the weight fraction of described urban waste, organic contamination soil, additive compares respectively:
Urban waste: 60
Organic contamination soil: 30
Additive: 10
Wherein: described urban waste is to be crushed to the old rubbish that 10cm granularity is following, water ratio is 35%; Described organic contamination soil is except the organophosphorus pesticide pollution soil after building waste; Described additive is carbide slag.
7. the method that a kind of organic contamination soil according to claim 2 is combined with cement kiln with urban waste combination treatment, is characterized in that, the weight fraction of described urban waste, organic contamination soil, additive compares respectively:
Urban waste: 75
Organic contamination soil: 15
Additive: 10
Wherein: described urban waste is that water ratio is 80% changing food waste and the combination of domestic refuse and lime dewatered sludge, changing food waste, domestic refuse and the combination of lime dewatered sludge are than being 50:25; Described organic contamination soil is except the DDT pesticidal contamination soil after building waste; Described additive is carbide slag.
8. the method that a kind of organic contamination soil according to claim 2 is combined with cement kiln with urban waste combination treatment, is characterized in that, described pyrolytic gasification temperature is controlled at 700 degrees Celsius.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104496135A (en) * | 2014-12-19 | 2015-04-08 | 北京金隅股份有限公司 | Method for treating sludge by using cement kiln, and sludge gasifying cement kiln system |
| CN104531218A (en) * | 2014-12-24 | 2015-04-22 | 北京建筑材料科学研究总院有限公司 | Cement kiln capable of realizing waste gasification outside same and gasification method thereof |
| CN107120663A (en) * | 2017-04-20 | 2017-09-01 | 金圆水泥股份有限公司 | A kind of organic contamination soil and solid waste combination treatment method |
| CN109290342A (en) * | 2018-11-07 | 2019-02-01 | 南京凯盛开能环保能源有限公司 | A kind of cement kiln collaboration Venous Industrial garden system and method |
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| CN102218444A (en) * | 2011-03-24 | 2011-10-19 | 华新环境工程有限公司 | Method for cooperative treatment of polluted soil with cement kiln |
| CN103396021A (en) * | 2013-08-16 | 2013-11-20 | 华新环境工程有限公司 | RDF (Refuse Derived Fuel) off-line burning technology and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102218444A (en) * | 2011-03-24 | 2011-10-19 | 华新环境工程有限公司 | Method for cooperative treatment of polluted soil with cement kiln |
| CN103396021A (en) * | 2013-08-16 | 2013-11-20 | 华新环境工程有限公司 | RDF (Refuse Derived Fuel) off-line burning technology and system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104496135A (en) * | 2014-12-19 | 2015-04-08 | 北京金隅股份有限公司 | Method for treating sludge by using cement kiln, and sludge gasifying cement kiln system |
| CN104531218A (en) * | 2014-12-24 | 2015-04-22 | 北京建筑材料科学研究总院有限公司 | Cement kiln capable of realizing waste gasification outside same and gasification method thereof |
| CN107120663A (en) * | 2017-04-20 | 2017-09-01 | 金圆水泥股份有限公司 | A kind of organic contamination soil and solid waste combination treatment method |
| CN107120663B (en) * | 2017-04-20 | 2019-01-08 | 金圆水泥股份有限公司 | A kind of organic contamination soil and solid waste combination treatment method |
| CN109290342A (en) * | 2018-11-07 | 2019-02-01 | 南京凯盛开能环保能源有限公司 | A kind of cement kiln collaboration Venous Industrial garden system and method |
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