CN108772408A - Municipal refuse comprehensive processing technique - Google Patents

Municipal refuse comprehensive processing technique Download PDF

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Publication number
CN108772408A
CN108772408A CN201810663505.4A CN201810663505A CN108772408A CN 108772408 A CN108772408 A CN 108772408A CN 201810663505 A CN201810663505 A CN 201810663505A CN 108772408 A CN108772408 A CN 108772408A
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CN
China
Prior art keywords
parts
processing technique
municipal refuse
water
comprehensive processing
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Pending
Application number
CN201810663505.4A
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Chinese (zh)
Inventor
谭强
唐聪
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CHENGDU MUNICIPAL ENGINEERING (GROUP) Co Ltd
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CHENGDU MUNICIPAL ENGINEERING (GROUP) Co Ltd
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Priority to CN201810663505.4A priority Critical patent/CN108772408A/en
Publication of CN108772408A publication Critical patent/CN108772408A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • B09B3/40Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
    • B09B5/00Operations not covered by a single other subclass or by a single other group in this subclass

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  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Processing Of Solid Wastes (AREA)
  • Micro-Organisms Or Cultivation Processes Thereof (AREA)

Abstract

The invention discloses municipal refuse comprehensive processing techniques, include the following steps:(1) garbage classification:Rubbish is divided by solid substance not soluble in water, lightweight combustible and waste water by hydrometer method first, then solid substance not soluble in water is divided by metal and nonmetallic substance by magnetic method;(2) classification is handled:The lightweight combustible is filled after being burnt using combustion method;The waste water discharges after being handled by waste water treatment process;The metal is separated and recovered from using furnace process;The nonmetallic substance rebuild after being crushed.The present invention, which integrates, combines several waste disposal methods and waste water, waste gas processing method, realizes rubbish synthesization, economy, environmental protection treatment, and safety simultaneously is conducive to realize, is truly realized the recycling transformation of city integrated rubbish.

Description

Municipal refuse comprehensive processing technique
Technical field
The present invention relates to a kind of municipal refuse comprehensive processing techniques, belong to technical field of waste treatment.
Background technology
In terms of global point, as economic is grown continuously and fast, living standards of the people improve rapidly, and urbanization process is not It is disconnected to accelerate, but the environmental problem faced simultaneously is also on the rise, the especially processing of rubbish.How municipal solid wastes are solved Problem, also one health of the mankind, clean living environment, have caused the great attention in the whole world.China's house refuse production in 2010 1.58 hundred million tons are measured, the accumulative stockpiling rubbish of surrounding city takes up an area ten thousand mu about more than 80, almost has in 661 cities up to 7,000,000,000 ton 2/3 city is surrounded by rubbish, and serious harm is produced to environment.
Domestic rubbish disposal mode includes mainly the side such as sanitary landfills, burning, compost, pyrolysis and comprehensive garbage disposal Method.Although wherein filling technically simple maturation, Construction and operation expense is low, and treating capacity is big, needs to occupy a large amount of soils, site Select Consideration extremely complex, recycling level is low, and there is also certain difficulty for loading embeading percolation liquid and biogas treatment;Rubbish Burning is that solid waste is carried out to the process of pyrolytic and deep oxidation, has volume reduction, decrement larger, can recycle thermal energy The advantages that, still, burning secondary pollution is serious, and especially incineration flue gas Zhong bioxin all causes environmental and human health impacts Harm, some burning disposal projects are because the suspension that is strongly opposed to have to of the common people is built;Garbage compost processing is mainly used in The higher rural garbage of China's content of organics, straw waste and vast small and medium-sized cities.Although composting technology can effective volume reduction Decrement, reaches recycling effect, but compost is since there is also many problems, such as adaptability to raw material for the limitation of itself Difference, heavy metal pollution problem is serious, and composting production sales volume is bad etc..
China's domestic waste be mainly derived from the daily daily life of family life, the food debris of diet, all kinds of devices, The packaging bag of article, wrapping paper, large quantities of waste paper and textile, old metal etc., component of refuse is complicated, mostly composting.Mesh Preceding garbage disposal still based on sanitary landfills, is aided with the modes such as waste incineration, compost.Wherein waste incineration is applied to south more Developed area, and most parts of the north then use landfill disposal rubbish.It is this to handle rubbish only with single treatment mode The waste disposal method that rubbish or landfill are combined with burning, or can not effectively be directed to garbage property and carry out thoroughly innoxious minimizing Either recycling level is low or secondary pollution seriously cannot reach good treatment effect for processing.Therefore it needs to be directed to me State's house refuse characteristic, using novel integrated conduct method, reach the abundant recycling of all the components in rubbish, minimizing, Harmless treatment.
Invention content
General Office being carried out according to the characteristic of each sorting rubbish after garbage classification the purpose of the present invention is to provide a kind of The municipal refuse comprehensive processing technique of reason.
The purpose of the present invention is what is be achieved through the following technical solutions:
Municipal refuse comprehensive processing technique, includes the following steps:
(1) garbage classification:First by hydrometer method by rubbish be divided into solid substance not soluble in water, lightweight combustible and Waste water, then solid substance not soluble in water is divided by metal and nonmetallic substance by magnetic method;
(2) classification is handled:The lightweight combustible is filled after being burnt using combustion method;The waste water passes through wastewater treatment work It is discharged after skill processing;The metal is separated and recovered from using furnace process;The nonmetallic substance rebuild after being crushed.
Further, the thermal energy generated after the combustion method burning can be used for producing electricl energy.
Further, the waste water treatment process includes the following steps:
(1) it adjusts:It adjusting pH value and is passed through oxygen, the adjusting pH value refers to adjusting pH value by adding acid-base material, The range 7~9 of pH value;
(2) it handles and discharges:Complex microbial inoculum is added and carries out sewage disposal;It specifically refers to be added in every liter of sewage 5~8g complex microbial inoculums, and 30~40min is stirred, stirring while, is passed through oxygen, then is discharged after standing.
Further, the complex microbial inoculum includes following components of the dry cell weight than part:Nitrobacteria 20~28 Part, 15~18 parts of saccharomycete, 12~15 parts of bacillus subtilis, 30~36 parts of bacillus coagulans, bacillus licheniformis 14~ 17 parts and 9~12 parts of lactic acid bacteria, and added and its parts by weight C toward above-mentioned microbial inoculum12H22O117~9 parts.
Further, the complex microbial inoculum includes following components of the dry cell weight than part:25 parts of nitrobacteria, ferment 11 parts of 16 parts of female bacterium, 13 parts of bacillus subtilis, 33 parts of bacillus coagulans, 15 parts of bacillus licheniformis and lactic acid bacteria, and Toward the addition of above-mentioned microbial inoculum and its parts by weight C12H22O118 parts.
Further, the clear water that complex microbial inoculum elder generation temperature in use is 30~40 ° is prepared into liquid bacterial agent, and It is 6~8 hours to keep the temperature, time.
The present invention, which integrates, combines several waste disposal methods and waste water, waste gas processing method, realizes rubbish synthesis Change, economy, environmental protection treatment, safety are simultaneously conducive to realization, are truly realized the recycling transformation of city integrated rubbish.
Specific implementation mode
Embodiment 1
Municipal refuse comprehensive processing technique provided in this embodiment, includes the following steps:
(1) garbage classification:First by hydrometer method by rubbish be divided into solid substance not soluble in water, lightweight combustible and Waste water, then solid substance not soluble in water is divided by metal and nonmetallic substance by magnetic method;The hydrometer method refers to basis The weight of rubbish is classified, and rubbish is put in water, general solid substance not soluble in water can overweight water, this substance generally comprises Metal, masonry etc.;The lightweight incendivity object is normally suspended in water, and the metal in solid substance not soluble in water generally passes through Electromagnet can will be isolated.
(2) classification is handled:The lightweight combustible is filled after being burnt using combustion method, the thermal energy generated in the combustion method Electric energy can be converted to by the prior art, and the smog for generation of burning can filter wherein harmful gas by filtering technique Body, the filtering technique include that gas is passed through to water purifying module, oxidation module, active carbon module and irradiation modules successively to remove Harmful substance, particle, peculiar smell of gas etc. are finally discharged into air, and the sewage after the processing gas of the water purifying module is logical Subsequent waste water treatment process processing is crossed, pollution environment is prevented.
The waste water discharges after being handled by waste water treatment process;The waste water treatment process includes the following steps:(1) it adjusts It saves pH value and is passed through oxygen, the adjusting pH value refers to by addition acid-base material adjusting pH value, the range 7~9 of pH value, preferentially It is 8 to adjust pH value, and wherein pH value is adjusted using industrial sulphuric acid or calcium hydroxide and realized;The oxygen that is passed through refers to passing through exposure Tracheae is passed through the realization that air realizes oxygen, also waste water is made to seethe, but the pH value and oxygen content in waste water take the lead in reaching micro- Biological compound fungi agent control environment;
(2) it handles and discharges:Complex microbial inoculum is added and carries out sewage disposal;It specifically refers to be added in every liter of waste water The complex microbial inoculum of 5~8g, and 30~40min is stirred, stirring while, is passed through oxygen, then stands (water and flocculate point Until layer is apparent), wherein complex microbial inoculum elder generation temperature in use is prepared into liquid bacterial agent for 30~40 ° of clear water, and It is 6~8 hours to keep the temperature, time, can C12H22O11Fully activation nitrobacteria, saccharomycete, bacillus subtilis, condensation Bacillus, bacillus licheniformis and lactic acid bacteria keep wastewater treatment efficiency more preferable, the water discharged after sample process.
Wherein, the complex microbial inoculum includes following components of the dry cell weight than part:20~28 parts of nitrobacteria, ferment 15~18 parts of female bacterium, 12~15 parts of bacillus subtilis, 30~36 parts of bacillus coagulans, 14~17 parts of bacillus licheniformis and 9~12 parts of lactic acid bacteria, and added and its parts by weight C toward above-mentioned microbial inoculum12H22O117~9 parts.
Preferably, the complex microbial inoculum includes following components of the dry cell weight than part:25 parts of nitrobacteria, yeast 11 parts of 16 parts of bacterium, 13 parts of bacillus subtilis, 33 parts of bacillus coagulans, 15 parts of bacillus licheniformis and lactic acid bacteria and past Above-mentioned microbial inoculum addition and its parts by weight C12H22O118 parts.
The metal is separated and recovered from using furnace process, and the furnace process includes that metal is carried out break process first After be put into melting furnace fusing after detach, it is described separation be according between different metal fusing point fusing be separated by solid-liquid separation, liquid It is cooled and shaped after separation, you can realization is recycling.
The nonmetallic substance rebuild after being crushed, and the nonmetallic substance generally comprises building materials and masonry etc., this Kind substance can again be utilized by being molded again after being crushed, realize resource reutilization.
The present invention, which integrates, combines several waste disposal methods and waste water, waste gas processing method, realizes rubbish synthesis Change, economy, environmental protection treatment, safety are simultaneously conducive to realization, are truly realized the recycling transformation of city integrated rubbish.
The above is only the preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto, any The transformation and replacement that are carried out based on technical solution provided by the present invention and inventive concept should all cover the protection model in the present invention In enclosing.

Claims (6)

1. municipal refuse comprehensive processing technique, it is characterised in that include the following steps:
(1) garbage classification:Rubbish is divided by solid substance not soluble in water, lightweight combustible by hydrometer method first and is given up Water, then solid substance not soluble in water is divided by metal and nonmetallic substance by magnetic method;
(2) classification is handled:The lightweight combustible is filled after being burnt using combustion method;The waste water by waste water treatment process at It is discharged after reason;The metal is separated and recovered from using furnace process;The nonmetallic substance rebuild after being crushed.
2. municipal refuse comprehensive processing technique according to claim 1, it is characterised in that:It is generated after the combustion method burning Thermal energy can be used for producing electricl energy.
3. municipal refuse comprehensive processing technique according to claim 1, it is characterised in that:The waste water treatment process includes Following steps:
(1) it adjusts:It adjusts pH value and is passed through oxygen, the adjusting pH value refers to adjusting pH value, pH value by adding acid-base material Range 7~9;
(2) it handles and discharges:Complex microbial inoculum is added and carries out sewage disposal;Specifically refer in every liter of sewage be added 5~ 8g complex microbial inoculums, and 30~40min is stirred, stirring while, is passed through oxygen, then is discharged after standing.
4. municipal refuse comprehensive processing technique according to claim 3, it is characterised in that:The complex microbial inoculum packet Include following components of the dry cell weight than part:20~28 parts of nitrobacteria, 15~18 parts of saccharomycete, bacillus subtilis 12~15 Part, 30~36 parts of bacillus coagulans, 14~17 parts of bacillus licheniformis and 9~12 parts of lactic acid bacteria, and add toward above-mentioned microbial inoculum Add and its parts by weight C12H22O117~9 parts.
5. municipal refuse comprehensive processing technique according to claim 3, it is characterised in that:The complex microbial inoculum packet Include following components of the dry cell weight than part:25 parts of nitrobacteria, 16 parts of saccharomycete, 13 parts of bacillus subtilis, condensation gemma bar 11 parts of 33 parts of bacterium, 15 parts of bacillus licheniformis and lactic acid bacteria, and added and its parts by weight C toward above-mentioned microbial inoculum12H22O118 parts.
6. municipal refuse comprehensive processing technique according to claim 4 or 5, it is characterised in that:The microbial composite bacteria Agent elder generation temperature in use is that 30~40 ° of clear water is prepared into liquid bacterial agent, and keeps the temperature, and the time is 6~8 hours.
CN201810663505.4A 2018-06-25 2018-06-25 Municipal refuse comprehensive processing technique Pending CN108772408A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113020223A (en) * 2021-03-26 2021-06-25 广东省科学院资源综合利用研究所 Method for recycling urban resident domestic garbage through full-recycling comprehensive treatment

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Publication number Priority date Publication date Assignee Title
CN113020223A (en) * 2021-03-26 2021-06-25 广东省科学院资源综合利用研究所 Method for recycling urban resident domestic garbage through full-recycling comprehensive treatment

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