CN101579682A - Mixing disposal method of incineration ash of municipal sludge and domestic garbage - Google Patents
Mixing disposal method of incineration ash of municipal sludge and domestic garbage Download PDFInfo
- Publication number
- CN101579682A CN101579682A CNA2009100993668A CN200910099366A CN101579682A CN 101579682 A CN101579682 A CN 101579682A CN A2009100993668 A CNA2009100993668 A CN A2009100993668A CN 200910099366 A CN200910099366 A CN 200910099366A CN 101579682 A CN101579682 A CN 101579682A
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- Prior art keywords
- incineration ash
- municipal sludge
- domestic garbage
- mixing
- ash
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- 239000010802 sludge Substances 0.000 title claims abstract description 32
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 28
- 238000002156 mixing Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 238000004056 waste incineration Methods 0.000 claims abstract description 5
- 239000002956 ash Substances 0.000 claims description 27
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical group [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 14
- 239000000292 calcium oxide Substances 0.000 claims description 7
- 235000012255 calcium oxide Nutrition 0.000 claims description 7
- 239000010882 bottom ash Substances 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 2
- 238000006297 dehydration reaction Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000007711 solidification Methods 0.000 abstract description 2
- 230000008023 solidification Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 239000002689 soil Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000004576 sand Substances 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002910 solid waste Substances 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000005213 imbibition Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- -1 light weight Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000010801 sewage sludge Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a mixing disposal method of incineration ash of municipal sludge and domestic garbage. The mixing mass ratio of the incineration ash of the municipal sludge and the domestic garbage is 1:0.5-1.0, the blending quantity of curing agent is 15-25% of the total weight of the incineration ash of the domestic garbage, the non-confined compressive strength is 50-120kPa, the volume of the incineration ash mixture of the municipal sludge and the domestic garbage is 91-98% of that before being mixed, and the incineration ash is not disintegrated when being soaked in water. The method utilizes the aggregate characteristics, hydroscopic property and hydraulic active property of waste incineration ash, treats the defects of low strength, high compressibility and water content as well as unsuitability for sanitary landfills of mud with direction, and solves the disposal problem of two municipal solid wastes which are the incineration ash of the municipal sludge and the domestic garbage at the same time. The invention uses less doped curing agent, reduces the total volume of the mixed incineration ash of the municipal sludge and the domestic garbage, and obviously lowers the curing cost and has no problem of compatibilization compared with the existing sludge solidification technology.
Description
Technical field
The present invention relates to the processing method of solid waste, especially relate to a kind of municipal sludge and incineration ash of household rubbish mixing disposal method.
Background technology
Municipal sludge and incineration ash of household rubbish are two kinds of harmful solid waste in the city.
It is the environmental issue that solution is badly in need of in present each city that the up to ten million tons of present China 400 Duo Jia municipal sewage plants annual generation mud, its safety, health are disposed.The present most sewage treatment plants of China adopt mechanical means to carry out processed, and the moisture percentage in sewage sludge that dispatches from the factory is up to more than 80%, and mechanical property is poor, and intensity is low, and compressibility is big.The main method of disposal of municipal sludge comprises sanitary landfills, soil utilization, building materials utilization and burning etc. at present, and wherein small investment is disposed in sanitary landfills, and is simple to operate, and instant effect is the main method that China disposes municipal sludge.But because the water content height of municipal sludge, mechanical property is poor, very easily cause engineering project disasters such as landfill body unstability, or mud landfill height is restricted, cause that the landfill yard storage capacity is little, floor space is big, so that the contradiction of each municipal sludge landfill and soil anxiety is outstanding day by day.The mechanical property of mud has appearred improving by the interpolation cement-based solidified material at present, make it be more suitable for landfill, but because the water content and the content of organic matter height of mud, cause the curing materials large usage quantity, and often need to add framework materials such as a large amount of sand, soil, make this solidification technology cost height (up to more than 200 yuan/tons), and aggregate such as the sand that is added, soil has taken the capacity of landfill yard.This curing technology is difficult to promote at home at present.
Incineration ash of household rubbish is the inevitable outcome of municipal solid waste incinerator.Incinerator ash comprise burning back left in stove bottom ash and flue gas purification system in the flying dust collected.Wherein bottom ash accounts for greatly and burns 80%～90% of grey gross mass, mainly formed by dregs, ceramic-like material fragment and some other material not flammable and not combustion, after removing bulk matter, its outward appearance is similar with gravel to mushy, grayish fine sand, light weight, water absorbing capacity is strong, meets a lot of specification requirements as aggregate.Flying dust accounts for 10%～20% greatly, is the lower fine particle of moisture content, contains more silica, aluminium oxide, iron oxide isoreactivity composition, under the effect of exciting agent, has certain hydraulically active.The safe disposal method of incinerator ash mainly is sanitary landfills at present.
Summary of the invention
The object of the present invention is to provide a kind of municipal sludge and incineration ash of household rubbish mixing disposal method,
The technical solution used in the present invention is:
Municipal sludge is 1: 0.5～1.0 with the mixing quality ratio of incineration ash of household rubbish, the curing agent volume is 15～25% of an incineration ash of household rubbish gross weight, unconfined compressive strength is 50～120kPa, municipal sludge is for 91%～98% before mixing with the volume of incineration ash of household rubbish mixture, and not disintegration is steeped in water logging.
Described municipal sludge is the mud behind the city domestic sewage treatment plant mechanical dehydration.
Described incineration ash of household rubbish is waste incineration bottom ash, incineration of refuse flyash or both mixing.
Described curing agent is a quick lime.
The beneficial effect that the present invention has is:
(1) the present invention has utilized aggregate characteristic, water imbibition and the hydraulicity characteristics of incinerator ash, the intensity that specific aim is handled mud is low, compressibility is big, moisture content is high, be not suitable for problem such as sanitary landfills, reach the mechanical property requirements of landfill after both mixed processing, solved the handling problems of mud and two kinds of municipal solid wastes of incinerator ash with killing two birds with one stone.
(2) the present invention does not use cement-based solidified material, has certain hydraulically active composition in the incinerator ash but utilized, the a spot of curing agent of admixture, through hydration reaction, form hydraulicity gum material, make the intensity of mud reach the landfill operation requirement, and unlikely disintegration and influence the stable of landfill yard under the immersion condition.
(3) to adopt quick lime be curing agent in the present invention, and this material excites the hydraulically active that burns ash except possessing, and is also highly beneficial to the diminishing of mud.
(4) this invention financial cost is low, and sludge curing totle drilling cost per ton is no more than 100 yuan, and the sludge curing cost of prior art reaches 200 yuan/ton in the market.
(5) the present invention has utilized mud can fill the character in incinerator ash space, the curing agent that adds also is about 20% of an incinerator ash weight, it is about 10% of mixture total weight amount, cumulative volume reduces to some extent behind feasible burning ash and the sludge curing, and there is tangible increase-volume problem in existing sludge curing technology.
The specific embodiment
Embodiment 1:
Municipal sludge is 1: 0.8: 0.2 with the mixing quality ratio of consumer waste incineration bottom ash and flying ash, the quick lime volume is for burning 15% of grey gross mass, unconfined compressive strength reached 75kPa in 10 days, and the volume of mixture is for 91% before mixing, and not disintegration is steeped in water logging.
Embodiment 2:
The mass ratio of municipal sludge and consumer waste incineration bottom ash is 1: 1.0, and the quick lime volume reaches 50kPa for 25%, 10 day unconfined compressive strength of burning grey quality, and the volume of mixture is to mix precedingly 95%, and not disintegration is steeped in water logging.
Embodiment 3:
Municipal sludge is 1: 0.8 with the mixing quality ratio of domestic garbage incineration flyash, and the quick lime volume reaches 120kPa for 15%, 10 day unconfined compressive strength of burning grey weight, and the volume of mixture is for 96% before mixing, and not disintegration is steeped in water logging.
Embodiment 4:
Mud is 1: 0.5 with the mixing quality ratio of incineration of refuse flyash, and the quick lime volume reaches 70kPa for 20%, 10 day unconfined compressive strength of burning grey weight, and the volume of mixture is for 98% before mixing, and not disintegration is steeped in water logging.
Claims (4)
1, a kind of municipal sludge and incineration ash of household rubbish mixing disposal method, it is characterized in that: municipal sludge is 1: 0.5～1.0 with the mixing quality ratio of incineration ash of household rubbish, the curing agent volume is 15～25% of an incineration ash of household rubbish gross weight, unconfined compressive strength is 50～120kPa, municipal sludge is for 91%～98% before mixing with the volume of incineration ash of household rubbish mixture, and not disintegration is steeped in water logging.
2, a kind of municipal sludge according to claim 1 and incineration ash of household rubbish mixing disposal method is characterized in that: described municipal sludge is the mud behind the city domestic sewage treatment plant mechanical dehydration.
3, a kind of municipal sludge according to claim 1 and incineration ash of household rubbish mixing disposal method is characterized in that: described incineration ash of household rubbish is waste incineration bottom ash, incineration of refuse flyash or both mixing.
4, a kind of municipal sludge according to claim 1 and incineration ash of household rubbish mixing disposal method is characterized in that: described curing agent is a quick lime.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100993668A CN101579682A (en) | 2009-06-04 | 2009-06-04 | Mixing disposal method of incineration ash of municipal sludge and domestic garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100993668A CN101579682A (en) | 2009-06-04 | 2009-06-04 | Mixing disposal method of incineration ash of municipal sludge and domestic garbage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101579682A true CN101579682A (en) | 2009-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2009100993668A Pending CN101579682A (en) | 2009-06-04 | 2009-06-04 | Mixing disposal method of incineration ash of municipal sludge and domestic garbage |
Country Status (1)
| Country | Link |
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| CN (1) | CN101579682A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319713A (en) * | 2011-06-02 | 2012-01-18 | 福建工程学院 | The burying method that mixes health rubbish |
| CN102941209A (en) * | 2012-11-07 | 2013-02-27 | 浙江理工大学 | Method for curing dredged sludge by doping incinerated bottom ash of domestic garbage |
| CN106642152A (en) * | 2016-12-26 | 2017-05-10 | 重庆文渠环保科技有限公司 | Method for harmless disposal and comprehensive utilization by mixed incineration of sludge and garbage fly ash |
| CN106765159A (en) * | 2016-12-26 | 2017-05-31 | 重庆文渠环保科技有限公司 | A kind of industrial organic solid castoff burns the innoxious method for coexisting and putting with sludge high temperature |
| CN107512746A (en) * | 2017-09-14 | 2017-12-26 | 清远绿由环保科技有限公司 | A kind of filtering agent and its manufacture method produced with municipal sludge for handling sewage |
| CN110631021A (en) * | 2018-06-22 | 2019-12-31 | 汤广武 | Safe treatment method of fly ash |
| CN110818345A (en) * | 2019-10-25 | 2020-02-21 | 中交第三航务工程局有限公司 | Clay stratum shield improved muck environment-friendly baking-free brick and preparation method thereof |
| CN113020197A (en) * | 2021-02-26 | 2021-06-25 | 吉安创成环保科技有限责任公司 | Landfill treatment mode for treating wastes with wastes |
| CN114907073A (en) * | 2022-05-27 | 2022-08-16 | 江苏科技大学 | Modified municipal sludge for covering soil of landfill and preparation method thereof |
-
2009
- 2009-06-04 CN CNA2009100993668A patent/CN101579682A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319713A (en) * | 2011-06-02 | 2012-01-18 | 福建工程学院 | The burying method that mixes health rubbish |
| CN102941209A (en) * | 2012-11-07 | 2013-02-27 | 浙江理工大学 | Method for curing dredged sludge by doping incinerated bottom ash of domestic garbage |
| CN106642152A (en) * | 2016-12-26 | 2017-05-10 | 重庆文渠环保科技有限公司 | Method for harmless disposal and comprehensive utilization by mixed incineration of sludge and garbage fly ash |
| CN106765159A (en) * | 2016-12-26 | 2017-05-31 | 重庆文渠环保科技有限公司 | A kind of industrial organic solid castoff burns the innoxious method for coexisting and putting with sludge high temperature |
| CN107512746A (en) * | 2017-09-14 | 2017-12-26 | 清远绿由环保科技有限公司 | A kind of filtering agent and its manufacture method produced with municipal sludge for handling sewage |
| CN110631021A (en) * | 2018-06-22 | 2019-12-31 | 汤广武 | Safe treatment method of fly ash |
| CN110631021B (en) * | 2018-06-22 | 2021-07-06 | 汤广武 | Safe treatment method of fly ash |
| CN110818345A (en) * | 2019-10-25 | 2020-02-21 | 中交第三航务工程局有限公司 | Clay stratum shield improved muck environment-friendly baking-free brick and preparation method thereof |
| CN113020197A (en) * | 2021-02-26 | 2021-06-25 | 吉安创成环保科技有限责任公司 | Landfill treatment mode for treating wastes with wastes |
| CN114907073A (en) * | 2022-05-27 | 2022-08-16 | 江苏科技大学 | Modified municipal sludge for covering soil of landfill and preparation method thereof |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091118 |