CN104690070A - Treatment method of municipal domestic waste - Google Patents
Treatment method of municipal domestic waste Download PDFInfo
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- CN104690070A CN104690070A CN201510078717.2A CN201510078717A CN104690070A CN 104690070 A CN104690070 A CN 104690070A CN 201510078717 A CN201510078717 A CN 201510078717A CN 104690070 A CN104690070 A CN 104690070A
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Abstract
The invention discloses a treatment method of municipal domestic waste. Treatment is carried out through the procedures of sorting, crushing, fermenting, comprehensive classification and the like. The method mainly comprises the following steps: (1) sorting for the first time, namely sorting into a light material and a heavy material, wherein the light material is mainly formed by organic matter, and the heavy metal is mainly formed by inorganic matter; (2) sorting for the second time, namely crushing the heavy material of the inorganic matter by virtue of a ball mill, and sorting the crushed heavy material into a magnetic heavy material and a non-magnetic heavy material; (3) sorting for the third time, namely classifying the sorted non-magnetic heavy material again into recoverable substances and materials without recovery value; and (4) carrying out comprehensive treatment on the sorted waste. The recycling comprehensive treatment is carried out on the municipal domestic waste; the cost is relatively low; recycling utilization or regeneration of various substances of the waste is implemented; waste pollution is thoroughly treated; and reduction, harmless and recycling treatment targets are realized.
Description
Technical field
The present invention relates to a kind of waste disposal method, particularly relate to a kind of processing method of domestic waste.
Background technology
Existing life refuse processing method, mainly comprises following several processing mode: one is sanitary landfill method, garbage compost method, waste incineration method, sorting process method etc.These processing methods have his own strong points, but all there are some problem and shortage, govern the development of China's garbage disposal cause.
Sanitary landfill method is inserted by rubbish in ready hole to cover compacting, makes it biology, physics, chemical change occur, decomposing organic matter, reach minimizing and innoxious object.Although this method is simple, small investment, treating capacity large, occupy a large amount of non-renewable land resource, and percolate disposal cost is large, easily causes groundwater resources to pollute, and atmosphere pollution, there is serious potential safety hazard, secondary pollution is serious.
Garbage compost method is Urban Garbage Treatment in China use is also that commitment makes to be used as many modes the earliest.Compost can produce fertilizer, and be conducive to large ecological benign cycle, have certain economic benefit, but composting cycle be long, area occupied is large, the shortcoming that nutrient content is low, and Long-Time Service easily causes soil compaction to close groundwater quality and degenerates.
Waste incineration method is that rubbish is placed in high temperature furnace, makes wherein combustible component fully oxidized, and the heat of generation is used for generating and heating; If but deal with improperly, very easily produce extremely toxic substance, and with in fume emission air.
Sorting process method to utilize in rubbish the physical propertys such as various composition proportion, magnetic different, adopts the methods such as gravity treatment, magnetic separation and air-flow by each separating substances respectively, but investment goods is large, and for developing country, economic pressures are larger.
Summary of the invention
The object of the invention is to overcome prior art deficiency, there is provided that a kind of construction investment is few, operating cost is low, simple to operate, treatment effect good, resource circulation utilization degree is high, the garbage disposal of different scales can be widely used, and the city house refuse treatment method of non-secondary pollution.
For realizing above-mentioned technical problem, technical scheme of the present invention is:
A processing method for domestic waste, is characterized in that: mainly comprise the following steps:
(1) first time sorting: divide the light material elected as and form primarily of organic matter and the heavy material formed primarily of inorganic matter;
(2) second time sorting: utilize ball mill that inorganic matter heavy material is broken, and the heavy material after fragmentation is divided elect magnetic heavy material and non-magnetic weights material as;
(3) third time sorting: the non-magnetic weights material sub-elected is segmented again: non-magnetic weights material is divided into recoverable material and the material without recovery value;
(4) integrated treatment is carried out to the rubbish sub-elected, washing and sterilizing, fermentation are carried out to organic matter, then carry out abrasive dust, stirring, make composite fertilizer, and carry out packing, selling; To the magnetic material washing and sterilizing such as iron, nickel that step (2) sub-elects, after carrying out drying process, carry out packing and selling; To waste paper, old metal, cullet, non-plastic that step (3) sub-elects, after the recoverable material such as aluminium, copper washing and sterilizing, carry out fragmentation, reproducible utilization is carried out in classification; The recoverable material such as sandstone, dregs is used for doing construction material or brickmaking;
(5) to the rubbish without recoverable value that step (3) sub-elects, harmless treatment is carried out.
It is deep processing composting that described organic matter makes composite fertilizer, mainly comprises: clean, sterilizing, fermentation, and add nutritional labeling, be uniformly mixed, comminutor carries out granulation, dries, cooling, screening, packing and selling.
Described three sortings adopt pneumatic separating or wind-force to eliminate the mode of sorting.
The invention has the beneficial effects as follows: according to the general characteristic of municipal refuse material, simple technical process is adopted to be the material that can be recycled by these feed separation, such as magnetic heavy material, due to wherein containing metallics, can be used as metallurgical raw material; For non-magnetic weights material, due to wherein mainly inorganic mineral, the raw material of construction material or the fill material of some occasion can be used as; Biogas organic matter being carried out to fermentation generation can be used as fuel, for urban heat supplying etc.; Processing procedure is totally-enclosed, and pernicious gas is without outer row, and all rubbish all recycles, and process thoroughly, can effectively reduce environment, air pollution, create good human settlement.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is described in further details;
(1) first time sorting: divide the light material elected as and form primarily of organic matter and the heavy material formed primarily of inorganic matter; The mode that sorting can adopt pneumatic separating or wind-force to eliminate sorting is carried out, and this sorting Method compare is simple, and effective.
(2) second time sorting: utilize ball mill that inorganic matter heavy material is broken, object is that the particle of heavy material is reduced further, meet the requirement of follow-up magnetic separation and recycling, and the heavy material after fragmentation is divided elect magnetic heavy material and non-magnetic weights material as;
Wherein magnetic heavy material has metallurgical value mostly, can carry out ore dressing, can be used for metallurgical raw material for the concentrate sorted out as ore in sand form according to existing metallurgical technology; Non-magnetic weights mostly is does not have the metallurgical mineral matter be worth, and may be used for manufacturing building materials or brickmaking etc.
(3) third time sorting: the non-magnetic weights material sub-elected is segmented again: non-magnetic weights material is divided into recoverable material and the material without recovery value;
(4) integrated treatment is carried out to the rubbish sub-elected, washing and sterilizing, fermentation are carried out to organic matter, then carry out abrasive dust, stirring, make composite fertilizer, and carry out packing, selling; To the magnetic material washing and sterilizing such as iron, nickel that step (2) sub-elects, after carrying out drying process, carry out packing and selling; To waste paper, old metal, cullet, non-plastic that step (3) sub-elects, after the recoverable material such as aluminium, copper washing and sterilizing, carry out fragmentation, reproducible utilization is carried out in classification; The recoverable material such as sandstone, dregs is used for doing construction material or brickmaking;
(5) to the rubbish without recoverable value that step (3) sub-elects, harmless treatment is carried out.
It is deep processing composting that described organic matter makes composite fertilizer, mainly comprises: clean, sterilizing, fermentation, and add nutritional labeling, be uniformly mixed, comminutor carries out granulation, dries, cooling, screening, packing and selling.
Described three sortings adopt pneumatic separating or wind-force to eliminate the mode of sorting.
Those skilled in the art can carry out various remodeling and change to the present invention.Therefore, present invention covers the various remodeling in the scope falling into appending claims and equivalent thereof and change.
Claims (3)
1. a processing method for domestic waste, is characterized in that: mainly comprise the following steps:
(1) first time sorting: divide the light material elected as and form primarily of organic matter and the heavy material formed primarily of inorganic matter;
(2) second time sorting: utilize ball mill that inorganic matter heavy material is broken, and the heavy material after fragmentation is divided elect magnetic heavy material and non-magnetic weights material as;
(3) third time sorting: the non-magnetic weights material sub-elected is segmented again: non-magnetic weights material is divided into recoverable material and the material without recovery value;
(4) integrated treatment is carried out to the rubbish sub-elected, washing and sterilizing, fermentation are carried out to organic matter, then carry out abrasive dust, stirring, make composite fertilizer, and carry out packing, selling; To the magnetic material washing and sterilizing such as iron, nickel that step (2) sub-elects, after carrying out drying process, carry out packing and selling; To waste paper, old metal, cullet, non-plastic that step (3) sub-elects, after the recoverable material such as aluminium, copper washing and sterilizing, carry out fragmentation, reproducible utilization is carried out in classification; The recoverable material such as sandstone, dregs is used for doing construction material or brickmaking;
(5) to the rubbish without recoverable value that step (3) sub-elects, harmless treatment is carried out.
2. the processing method of a kind of domestic waste according to claim 1; it is characterized in that: it is deep processing composting that described organic matter makes composite fertilizer, mainly comprises: clean, sterilizing; fermentation; add nutritional labeling, be uniformly mixed, comminutor carries out granulation; dry; cooling, screening, packing and selling.
3. the processing method of a kind of domestic waste according to claim 1, is characterized in that: described three sortings adopt pneumatic separating or wind-force to eliminate the mode of sorting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510078717.2A CN104690070A (en) | 2015-02-14 | 2015-02-14 | Treatment method of municipal domestic waste |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510078717.2A CN104690070A (en) | 2015-02-14 | 2015-02-14 | Treatment method of municipal domestic waste |
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| CN104690070A true CN104690070A (en) | 2015-06-10 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215044A (en) * | 2015-10-29 | 2016-01-06 | 上海燎燊环保成套设备有限公司 | Household-garbage processing process and equipment |
| CN107716507A (en) * | 2017-09-18 | 2018-02-23 | 大庆天之草生物新材料科技有限公司 | A kind of Herbaceous Fiber biology refines technique waste residue administering method and equipment |
| CN109047297A (en) * | 2018-09-30 | 2018-12-21 | 广东惜福环保科技有限公司 | House refuse centralization separation system and sorting process |
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| CN101259479A (en) * | 2008-04-18 | 2008-09-10 | 北京恒业村科技有限公司 | Consumer waste reutilization method |
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| JP4860325B2 (en) * | 2006-03-31 | 2012-01-25 | シャープ株式会社 | Recycling method and recycling apparatus for display substrate processed metal and / or metal compound |
| CN103658155A (en) * | 2012-09-26 | 2014-03-26 | 王惠莹 | Processing method of household garbage |
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| CN1177525A (en) * | 1996-09-23 | 1998-04-01 | 中国科学院成都生物研究所 | Process for treatment of organic garbage of city |
| CN1416972A (en) * | 2002-10-11 | 2003-05-14 | 韩洪波 | Fast and economic comprehensive city domestic refuse treating method |
| JP4860325B2 (en) * | 2006-03-31 | 2012-01-25 | シャープ株式会社 | Recycling method and recycling apparatus for display substrate processed metal and / or metal compound |
| CN101244423A (en) * | 2007-12-29 | 2008-08-20 | 北京恒业村科技有限公司 | Specification process method for urban pollutant |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215044A (en) * | 2015-10-29 | 2016-01-06 | 上海燎燊环保成套设备有限公司 | Household-garbage processing process and equipment |
| CN107716507A (en) * | 2017-09-18 | 2018-02-23 | 大庆天之草生物新材料科技有限公司 | A kind of Herbaceous Fiber biology refines technique waste residue administering method and equipment |
| CN107716507B (en) * | 2017-09-18 | 2020-06-16 | 大庆天之草生物新材料科技有限公司 | Method and equipment for treating waste residues in grass fiber biological refining process |
| CN109047297A (en) * | 2018-09-30 | 2018-12-21 | 广东惜福环保科技有限公司 | House refuse centralization separation system and sorting process |
| CN109047297B (en) * | 2018-09-30 | 2024-01-23 | 广东惜福环保科技有限公司 | Household garbage centralized sorting system and sorting process |
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Application publication date: 20150610 |