CN104858217A - Comprehensive treatment technology for household garbage - Google Patents

Comprehensive treatment technology for household garbage Download PDF

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Publication number
CN104858217A
CN104858217A CN201510292526.6A CN201510292526A CN104858217A CN 104858217 A CN104858217 A CN 104858217A CN 201510292526 A CN201510292526 A CN 201510292526A CN 104858217 A CN104858217 A CN 104858217A
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rubbish
garbage
treatment technology
screening
comprehensive treatment
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CN201510292526.6A
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CN104858217B (en
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丰二中
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Hangzhou Yang Zhong Science And Technology Ltd
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Hangzhou Yang Zhong Science And Technology Ltd
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Abstract

The invention discloses a comprehensive treatment technology for household garbage, and belongs to the technical field of environmental protection. The comprehensive treatment technology for the household garbage is characterized by comprising the following steps: entering of fresh garbage, biological pretreatment, biodegradation, innocent treatment of garbage, classified screening of resources and resource collection; through combination of biological enzyme treatment, biomineralization degradation and mechanization, sorting treatment and resource application of the household garbage are realized; shortening of the treatment cycle on the garbage is facilitated by garbage screening after biological treatment; compared with a direct screening method without treatment, the screening difficulty is greatly lowered; the phenomenon of intertwining of the garbage can be effectively avoided; screening is carried out through mechanical equipment, so that the labor intensity of a worker is alleviated; improvement of the work efficiency is facilitated; according to the technical scheme, through biological treatment and screening of resources, the garbage can be absolutely cleaned; air pollution generated by waste incineration or soil pollution generated by garbage landfill is avoided.

Description

One way of life garbage comprehensive treatment technology
Technical field
The present invention relates to environmental technology field, more particularly, it relates to life-garbage comprehensive treatment technology.
Background technology
Current Prediction for Solid Waste Treatment Technology both domestic and external, all turn to target with innoxious, minimizing, resource, the most frequently used processing method mainly contains landfill, burning and compost, the scope of application that they are had nothing in common with each other and condition, from the angle analysis of recycling economy, only manage from the overall process of the source that rubbish produces, collection, transport and process, innoxious, minimizing and the resource of rubbish could be accomplished veritably.
Until at present, domestic a lot of cities and towns still adopt simple method of stacking, because rubbish is a kind of extremely complicated refuse, due to biodegradation and chemical action, As time goes on can rot gradually and biodegradation, produce and have the percolate of serious harm and have the biogas of explosion potential, percolate is possibility polluted underground water further also, causes serious threat to the health of humans and animals.Sanitary landfill method, bottom landfill yard and around be covered with impervious material, and lay catchment and weeper drain to discharge percolate, leachate contamination underground water problem can be solved.But the biodegradable component content of China's townm refuse is high at present, water content large, directly adopt landfill disposal method, cost of transportation is high, and land occupation area is large, and landfill process will produce a large amount of percolate, and process percolate difficulty is large; Perishable organic matter can be made debirs slaking and stabilisation by method that is aerobic or anaerobic composting by composting process, kill harmful germ and worm's ovum, thus reach innoxious, and can organic nutrient soil be made, but compost is only applicable to, and biodegradable kitchen is remaining waits organic waste, domestic rubbish generally adopts mixed collection at present, and compost impurity content is high, fertilizer efficiency is too low directly to adopt compost treatment technology to cause, and cannot apply; Burning method is a kind of high-temperature process technology of rubbish, its great advantage is that minimizing and innoxious degree are higher, burn the heat produced and can be used for generating and heat supply, residue can direct landfill, the volume and weight of refuse can be greatly reduced, the modern city of developed country and domestic economy prosperity abroad is all widely used at present, but burning method requires higher to the calorific value of rubbish, and the situation of the most of townm refuse of China is all not suitable for carrying out direct burning disposal.And high-moisture percentage waste of low heating value easily produces the pollutants such as dioxin in burning process, and operating cost is high.
In view of the respective limitation of the actual characteristic of China's rubbish and sanitary landfills, burning and compost treatment, adopt the garbage comprehensive treatment technology of various garbage processing method optimum organization, to obtain best environmental benefit, Social benefit and economic benefit.
Disclose in prior art application number be 200710011116.5 a kind of house refuse based on Biological Pretreatment of patent document carry out the technique of integrated treatment, belong to environmental technology field, it is characterized in that forming primarily of the artificial Pre-sorting of rubbish, Biological Pretreatment, garbage compost and garbage incineration process, house refuse is after artificial Pre-sorting, rubbish is divided into 4 classes, brick and tile stone component is used for building the road or filling out hole, and recyclable component is recycled; Hazardous waste send hazardous waste treatment plant to centrally dispose; After residual refuse carries out Biological Pretreatment, be divided into biodegradable component and combustible component through mechanical sorting, after biodegradable component compost treatment, carry out Land_use change, combustible component burning disposal.The present invention is first by carrying out artificial Pre-sorting to house refuse, there is the drawback that the efficiency of separation is lower, and the house refuse not doing any process is easily intertwined, further improve sorting difficulty again undoubtedly, the technical program carries out burning disposal to combustible component, a large amount of pernicious gas such as easy generation dioxin, if directly discharge can cause air pollution, if process gas, then greatly improve processing cost, in sum, there is the weak point needing to improve.
Summary of the invention
For prior art exist deficiency, the object of the present invention is to provide a kind of pollution-free, the cycle is short and the garbage comprehensive treatment technology of resource.
For achieving the above object, the invention provides following technical scheme: one way of life garbage comprehensive treatment technology, this technique comprises the following steps:
(1) new refuse is marched into the arena: marched into the arena by domestic waste collection by haulage vehicle or conveying arrangement;
(2) Biological Pretreatment: being positioned over Biological Pretreatment workshop by collecting the rubbish of marching into the arena, spraying the liquor with particular organisms enzyme, by biology enzyme, the organic matter in rubbish being carried out aerobic fermentation process, making organic matter change into fertilizer;
(3) biodegradation: the rubbish after Biological Pretreatment is positioned over rubbish and fills up field, carries out the process of rubbish mineralising, by rubbish mineralising, is decomposed further by the organic matter in rubbish, thus makes garbage decrement;
(4) discarded object harmless treatment: the rubbish after biodegradation is carried out heavy metal analysis, carries out removal heavy metal process to the underproof rubbish of detection;
(5) resource classification screening: the rubbish after discarded object harmless treatment is carried out screening process by setting screening mechanism, sieves as fertilizer and inorganic refuse;
(6) resource is collected: fertilizer and inorganic refuse are collected and do respective handling by setting resource recovery device respectively.
The present invention is set to further: described step (2) is further comprising the steps of:
By biology enzyme, aerobic fermentation is carried out to organic waste, organic waste is made to be decomposed into fertilizer, reduce garbage bulk, in aerobic fermentation process, carry out interval to stockpile stir, by means of biological respinse heat and the draught effect of preprocessing process, make moist part evaporation in rubbish, the percolate produced in this process can be reduced simultaneously; Biological Pretreatment process 15-150 days.
The present invention is set to further: described refuse landfill comprises the native layer of sand be arranged under rubbish, be disposed with three-dimensional composite drainage network, macromolecule watertight composition and viscous soil horizon under soil layer of sand, in described refuse landfill, also include leachate collection exhaust system and percolate detection system.
The present invention is set to further: described step (4) is further comprising the steps of:
Rubbish after biodegradation is divided into the calibrated bolck that some volumes are a cubic metre, each calibrated bolck random selecting three points carry out heavy metal analysis, detect qualified after enter step (5), detect defective, after Extraction of Heavy Metals technique is carried out to the calibrated bolck of this rubbish, enter step (5).
The present invention is set to further: described screening mechanism comprises drum screen and separator, and described drum screen comprises thick level drum screen, smart level drum screen and thin level drum screen, and described separator comprises winnowing machine, water concentrator and magnetic separator.
The present invention is set to further: described step (5) is further comprising the steps of: by drum screen, the rubbish after discarded object harmless treatment is separated into fertilizer and inorganic refuse.
The present invention is set to further: the rubbish after discarded object harmless treatment carries out being separated of fertilizer and inorganic refuse by thick level drum screen, smart level drum screen and thin level drum screen successively.
The present invention is set to further: setting sorting object is plastics, uses winnowing machine, utilizes the plastics characteristic different from other inorganic refuse phase specific masses to be separated, thus obtain plastic components.
The present invention is set to further: setting sorting object is stone, uses water concentrator, utilizes the stone characteristic different from other inorganic refuse phase specific densitys to be separated, thus obtain stone composition.
The present invention is set to further: setting sorting object is metal, uses magnetic separator, utilizes metal can be separated by the characteristic of magnet adsorption compared with other inorganic refuses, thus obtain metal ingredient.
By adopting technique scheme, the present invention is beneficial effect: one way of life garbage comprehensive treatment technology provided by the invention, pass through biology enzyme, biomineralization degraded and mechanical type combine and realize the application of categorized consumer waste Treatment and recovery, in the screening carrying out rubbish after biological treatment, be conducive to the treatment cycle shortening rubbish, with do not do compared with any process just directly sieves, screening difficulty reduces greatly, the phenomenon that can effectively avoid rubbish to be mutually wound around occurs, sieved by plant equipment, reduce the labour intensity of workman, be conducive to increasing work efficiency, by carrying out a biological disposal upon and sieving resource before and after the technical program, absolutely garbage-cleaning can be reached, waste incineration is avoided to produce air pollution or the pollution of garbage bury generation soil property.
Accompanying drawing explanation
Fig. 1 is the process chart of one way of life garbage comprehensive treatment technology embodiment of the present invention.
Detailed description of the invention
With reference to Fig. 1, one way of life garbage comprehensive treatment technology embodiment of the present invention is described further.
One way of life garbage comprehensive treatment technology, this technique comprises the following steps:
(1) new refuse is marched into the arena: marched into the arena by domestic waste collection by haulage vehicle or conveying arrangement;
(2) Biological Pretreatment: be positioned over Biological Pretreatment workshop by collecting the rubbish of marching into the arena, spray the liquor with particular organisms enzyme, by biology enzyme, the organic matter in rubbish is carried out aerobic fermentation process, biodegradable enzyme is mainly PD enzyme, mainly biological decomposition is carried out to protide, carbohydrate and fruit-vegetable fibre class in rubbish, make organic matter change into fertilizer; Reduce garbage bulk, rubbish reduced volume 20% can be reached, reduce the native amount of landfill of later stage biomineralization process, in aerobic fermentation process, carry out interval to stockpile stir, by means of biological respinse heat and the draught effect of preprocessing process, make moist part evaporation in rubbish, the percolate produced in this process can be reduced simultaneously; Carry out Biological Pretreatment process 15-150 days at normal temperatures, according to the quality of rubbish and reality, the number of days of Biological Pretreatment reflects that temperature is for further adjustments, regularly carry out sample collection in Biological Pretreatment workshop, carry out sample analysis after collection, adjust the Biological Pretreatment time according to analysis result in good time.
(3) biodegradation: the rubbish after Biological Pretreatment is positioned over rubbish and fills up field, carries out the process of rubbish mineralising, by rubbish mineralising, is decomposed further by the organic matter in rubbish, thus makes garbage decrement; Refuse landfill comprises the native layer of sand be arranged under rubbish, three-dimensional composite drainage network, macromolecule watertight composition and viscous soil horizon is disposed with under soil layer of sand, leachate collection exhaust system and percolate detection system is also included in described refuse landfill, the percolate that during biomineralization, rubbish produces by native layer of sand to downstream to three-dimensional composite drainage network, that carries out percolate by three-dimensional composite drainage network is guided to leachate collection exhaust system, oozes and cause soil property to be polluted under the setting of macromolecule watertight composition can avoid percolate.Biomineralization is conducive to reducing garbage disposal cost, makes organic waste minimizing, avoids the mutual winding of fresh rubbish and inorganic refuse in follow-up screening.
(4) discarded object harmless treatment: the rubbish after biodegradation is carried out heavy metal analysis, carries out removal heavy metal process to the underproof rubbish of detection; Rubbish after biodegradation is divided into the calibrated bolck that some volumes are a cubic metre, each calibrated bolck random selecting three points carry out heavy metal analysis, detect qualified after enter step (5), detect defective, after Extraction of Heavy Metals technique is carried out to the calibrated bolck of this rubbish, enter step (5), be conducive to the quality ensureing fertilizer.
(5) resource classification screening: the rubbish after discarded object harmless treatment is carried out screening process by setting screening mechanism, sieves as fertilizer and inorganic refuse; Screening mechanism comprises drum screen and separator, and drum screen comprises thick level drum screen, smart level drum screen and thin level drum screen, and separator comprises winnowing machine, water concentrator and magnetic separator.
By drum screen, the rubbish after discarded object harmless treatment is separated into fertilizer and inorganic refuse.Rubbish after discarded object harmless treatment carries out being separated of fertilizer and inorganic refuse by thick level drum screen, smart level drum screen and thin level drum screen successively, after three road drum screens, most fertilizer is all separated, remainder can stick on inorganic refuse, residue inorganic refuse is entered next process, setting sorting object is plastics, use winnowing machine, utilize the plastics characteristic different from other inorganic refuse phase specific masses to be separated, thus obtain plastic components; Setting sorting object is stone, use water concentrator, utilize the stone characteristic different from other inorganic refuse phase specific densitys to be separated, under the fertilizer on inorganic refuse surface can being cleaned while wet concentration, reach the object of collecting fertilizer further, thus obtain stone composition; Setting sorting object is metal, uses magnetic separator, utilizes metal can be separated by the characteristic of magnet adsorption compared with other inorganic refuses, thus obtain metal ingredient.
(6) resource is collected: fertilizer and inorganic refuse are collected and do respective handling by setting resource recovery device respectively.Pack after the collection of fertilizer as production marketing; The plastics that selection by winnowing obtains can do further recycling, for making plastic products; The stone that wet concentration obtains may be used for landfill; The metal that magnetic separation obtains can do further recycling, also can as direct distribution.
One way of life garbage comprehensive treatment technology provided by the invention, pass through biology enzyme, biomineralization degraded and mechanical type combine and realize the application of categorized consumer waste Treatment and recovery, in the screening carrying out rubbish after biological treatment, be conducive to the treatment cycle shortening rubbish, with do not do compared with any process just directly sieves, screening difficulty reduces greatly, the phenomenon that can effectively avoid rubbish to be mutually wound around occurs, sieved by plant equipment, reduce the labour intensity of workman, be conducive to increasing work efficiency, by carrying out a biological disposal upon and sieving resource before and after the technical program, absolutely garbage-cleaning can be reached, waste incineration is avoided to produce air pollution or the pollution of garbage bury generation soil property.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. one way of life garbage comprehensive treatment technology, is characterized in that, this technique comprises the following steps:
(1) new refuse is marched into the arena: marched into the arena by domestic waste collection by haulage vehicle or conveying arrangement;
(2) Biological Pretreatment: being positioned over Biological Pretreatment workshop by collecting the rubbish of marching into the arena, spraying the liquor with particular organisms enzyme, by biology enzyme, the organic matter in rubbish being carried out aerobic fermentation process, making organic matter change into fertilizer;
(3) biodegradation: the rubbish after Biological Pretreatment is positioned over rubbish and fills up field, carries out the process of rubbish mineralising, by rubbish mineralising, is decomposed further by the organic matter in rubbish, thus makes garbage decrement;
(4) discarded object harmless treatment: the rubbish after biodegradation is carried out heavy metal analysis, carries out removal heavy metal process to the underproof rubbish of detection;
(5) resource classification screening: the rubbish after discarded object harmless treatment is carried out screening process by setting screening mechanism, sieves as fertilizer and inorganic refuse;
(6) resource is collected: fertilizer and inorganic refuse are collected and do respective handling by setting resource recovery device respectively.
2. one way of life garbage comprehensive treatment technology according to claim 1, is characterized in that, described step (2) is further comprising the steps of:
By biology enzyme, aerobic fermentation is carried out to organic waste, organic waste is made to be decomposed into fertilizer, reduce garbage bulk, in aerobic fermentation process, carry out interval to stockpile stir, by means of biological respinse heat and the draught effect of preprocessing process, make moist part evaporation in rubbish, the percolate produced in this process can be reduced simultaneously; Biological Pretreatment process 15-150 days.
3. one way of life garbage comprehensive treatment technology according to claim 1, it is characterized in that, described refuse landfill comprises the native layer of sand be arranged under rubbish, be disposed with three-dimensional composite drainage network, macromolecule watertight composition and viscous soil horizon under soil layer of sand, in described refuse landfill, also include leachate collection exhaust system and percolate detection system.
4. one way of life garbage comprehensive treatment technology according to claim 1, is characterized in that, described step (4) is further comprising the steps of:
Rubbish after biodegradation is divided into the calibrated bolck that some volumes are a cubic metre, each calibrated bolck random selecting three points carry out heavy metal analysis, detect qualified after enter step (5), detect defective, after Extraction of Heavy Metals technique is carried out to the calibrated bolck of this rubbish, enter step (5).
5. one way of life garbage comprehensive treatment technology according to claim 1, it is characterized in that, described screening mechanism comprises drum screen and separator, and described drum screen comprises thick level drum screen, smart level drum screen and thin level drum screen, and described separator comprises winnowing machine, water concentrator and magnetic separator.
6. one way of life garbage comprehensive treatment technology according to claim 5, is characterized in that, described step (5) is further comprising the steps of: by drum screen, the rubbish after discarded object harmless treatment is separated into fertilizer and inorganic refuse.
7. one way of life garbage comprehensive treatment technology according to claim 6, is characterized in that, the rubbish after discarded object harmless treatment carries out being separated of fertilizer and inorganic refuse by thick level drum screen, smart level drum screen and thin level drum screen successively.
8. one way of life garbage comprehensive treatment technology according to claim 7, is characterized in that, setting sorting object is plastics, uses winnowing machine, utilizes the plastics characteristic different from other inorganic refuse phase specific masses to be separated, thus obtain plastic components.
9. one way of life garbage comprehensive treatment technology according to claim 8, is characterized in that, setting sorting object is stone, uses water concentrator, utilizes the stone characteristic different from other inorganic refuse phase specific densitys to be separated, thus obtain stone composition.
10. one way of life garbage comprehensive treatment technology according to claim 9, it is characterized in that, setting sorting object is metal, uses magnetic separator, utilize metal can be separated by the characteristic of magnet adsorption compared with other inorganic refuses, thus obtain metal ingredient.
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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105399549A (en) * 2015-12-29 2016-03-16 淄博永辰环境影响评价有限公司 Method for preparing organic fertilizer by using domestic wastes
CN105562425A (en) * 2016-02-23 2016-05-11 广西鸿生源环保股份有限公司 Recycling treatment process and system for household garbage
CN106734118A (en) * 2017-02-17 2017-05-31 刘波 A kind of processing method of house refuse foul smell
CN108580526A (en) * 2018-05-22 2018-09-28 阿尔法环能生物能源有限公司 A kind of method for comprehensively treating rubbish
CN110314917A (en) * 2018-03-30 2019-10-11 福建鑫盛润环境咨询合伙企业(有限合伙) A method of house refuse is handled using hyperthermophilic aerobic microbiological fermentative degradation

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CN101036916A (en) * 2007-04-24 2007-09-19 大连理工大学 Domestic waste comprehensive treatment technology based on the pre-processing
CN203541068U (en) * 2013-10-21 2014-04-16 环境保护部南京环境科学研究院 Solid particle sorting and mixing proportioning equipment
CN104028546A (en) * 2014-06-24 2014-09-10 济南英威特环保科技有限公司 Method for circularly processing garbage mountain

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Publication number Priority date Publication date Assignee Title
JP2000325993A (en) * 1999-05-24 2000-11-28 Seiichi Futaboshi Garbage treatment method and equipment
CN1394701A (en) * 2001-07-11 2003-02-05 周大成 Urban garbage centralized treatment and regeneration method
CN1513615A (en) * 2002-12-31 2004-07-21 上海思特经济技术开发公司 Domestic waste harmless comprehensive freatment technology and equipment system
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Cited By (6)

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Publication number Priority date Publication date Assignee Title
CN105399549A (en) * 2015-12-29 2016-03-16 淄博永辰环境影响评价有限公司 Method for preparing organic fertilizer by using domestic wastes
CN105562425A (en) * 2016-02-23 2016-05-11 广西鸿生源环保股份有限公司 Recycling treatment process and system for household garbage
CN106734118A (en) * 2017-02-17 2017-05-31 刘波 A kind of processing method of house refuse foul smell
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CN110314917A (en) * 2018-03-30 2019-10-11 福建鑫盛润环境咨询合伙企业(有限合伙) A method of house refuse is handled using hyperthermophilic aerobic microbiological fermentative degradation
CN108580526A (en) * 2018-05-22 2018-09-28 阿尔法环能生物能源有限公司 A kind of method for comprehensively treating rubbish

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