CN110436711A - Handle the system and method for small towns rubbish and sewage - Google Patents
Handle the system and method for small towns rubbish and sewage Download PDFInfo
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- CN110436711A CN110436711A CN201910754643.8A CN201910754643A CN110436711A CN 110436711 A CN110436711 A CN 110436711A CN 201910754643 A CN201910754643 A CN 201910754643A CN 110436711 A CN110436711 A CN 110436711A
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 115
- 239000010865 sewage Substances 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 27
- 230000018044 dehydration Effects 0.000 claims abstract description 43
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 43
- 239000010815 organic waste Substances 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 238000005188 flotation Methods 0.000 claims abstract description 30
- 239000002893 slag Substances 0.000 claims abstract description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000003895 organic fertilizer Substances 0.000 claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 32
- 238000000855 fermentation Methods 0.000 claims description 27
- 239000005416 organic matter Substances 0.000 claims description 20
- 239000012535 impurity Substances 0.000 claims description 17
- 238000000746 purification Methods 0.000 claims description 12
- 230000020477 pH reduction Effects 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 238000012216 screening Methods 0.000 claims description 6
- 239000002361 compost Substances 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 description 10
- 239000002699 waste material Substances 0.000 description 10
- 230000004151 fermentation Effects 0.000 description 9
- 238000001914 filtration Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 239000004033 plastic Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011148 porous material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 238000007885 magnetic separation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000001728 nano-filtration Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000000108 ultra-filtration Methods 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000003196 chaotropic effect Effects 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000011026 diafiltration Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007781 pre-processing Methods 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/16—Treatment of sludge; Devices therefor by de-watering, drying or thickening using drying or composting beds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses the system and methods of processing small towns rubbish and sewage, system includes: small towns rubbish pretreatment unit, small towns sewage filter device, flotation acidizing device, anaerobic ferment devices, dehydration device and heap turning over device, and small towns rubbish pretreatment unit has small towns garbage inlet, organic waste outlet and inorganic refuse outlet；Small towns sewage filter device has small towns sewage inlet and discharge channel；There is flotation acidizing device organic waste entrance, separating liquid entrance, lightweight object entrance, organic liquor outlet and the outlet of heavy object, organic waste entrance to be connected with organic waste outlet, and separating liquid entrance is connected with discharge channel；There is anaerobic ferment devices organic liquor entrance, methane outlet and biogas residue outlet, organic liquor entrance to be connected with organic liquor outlet；There is dehydration device biogas residue entrance, the outlet of dehydration slag and outlet of sewer, biogas residue entrance to be connected with biogas residue outlet；Heap turning over device has dehydration slag entrance and organic fertilizer outlet, and dehydration slag entrance is connected with the outlet of dehydration slag.
Description
Technical field
The invention belongs to field of solid waste resource utilization, and in particular to a kind of system and side for handling small towns rubbish and sewage
Method.
Background technique
Small towns rubbish includes the house refuse of the daily generation of small towns user, including conventional rubbish from cooking, plastics, paper,
Clinker, scrap iron, building waste etc. have the characteristics that complicated component, type are more, perishable, and easily raw harmful bacteria gives an offensive smell
Environmental pollution.
At present, the classification such as following small towns at county level and village individual poor consciousness causes to influence tail end disposition, such as house refuse
Calorific value low rubbish when tail end burning is carried out, is had a significant impact to overall efficiency.Consumer waste filling and embedding is easy to produce diafiltration when disposing
Liquid, leachate generation sharply increases when leading to summer, increases landfill yard operation cost, influences landfill yard operating environment.
Small towns refuse production is about 0.8~1.2kg/ people d, and general County finance population 100,000 is hereinafter, small towns rubbish
Yield is in 100t/d, compared to conventional domestic garbage burning electricity generation project, without scale benefit.
Small towns sewage includes the sanitary sewage that small towns is used for daily generation, and small towns sewage yield is 120-180L/ people
D, because of not set drainage pipeline networks, conveying distance is remote in most areas, is not effectively addressed, disorderly arranges phenomenon on the spot.Small towns sewage is very
There is no scale benefit in big degree.
Therefore, it handles to scale small towns rubbish and sewage is urgently probed into.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to propose a kind of system and method for handling small towns rubbish and sewage, and small towns rubbish may be implemented using the system
It is handled with the recycling of sewage and minimizing, to fundamentally solve the problems, such as that small towns environment is poor.
In one aspect of the invention, the invention proposes a kind of systems for handling small towns rubbish and sewage.According to this hair
Bright embodiment, the system comprises:
There is small towns garbage inlet, organic waste to go out for small towns rubbish pretreatment unit, the small towns rubbish pretreatment unit
Mouth and inorganic refuse outlet；
Small towns sewage filter device, the small towns sewage filter device have small towns sewage inlet, solid impurity outlet and
Discharge channel；
Flotation acidizing device, the flotation acidizing device have organic waste entrance, separating liquid entrance, lightweight object entrance,
Organic liquor outlet and the outlet of heavy object, the organic waste entrance are connected with organic waste outlet, the separating liquid entrance
It is connected with the discharge channel；
Anaerobic ferment devices, the anaerobic ferment devices have organic liquor entrance, methane outlet and biogas residue outlet, described to have
Machine liquid entrance is connected with organic liquor outlet；
Dehydration device, the dehydration device have biogas residue entrance, dehydration slag outlet and outlet of sewer, the biogas residue entrance with
The biogas residue outlet is connected；
Heap turning over device, the heap turning over device have dehydration slag entrance and organic fertilizer outlet, the dehydration slag entrance with it is described
Slag outlet is dehydrated to be connected.
The system of processing small towns rubbish and sewage according to an embodiment of the present invention after the pretreatment of small towns rubbish by will separate
Organic waste mixed with the separating liquid after the sewage water filtration of small towns carry out flotation acidification, it is aqueous effectively to compensate for small towns rubbish
The problems such as rate is low, poor fluidity and stirring are difficult, and additional make-up water is no longer needed, realize organic waste and separating liquid-liquid mixtures
The organic liquor for efficiently separating, and efficiently separating of middle lightweight object, organic liquor and heavy object carries out anaerobic fermentation processing, biogas again
Yield is high, and the biogas residue generated in fermentation process is used to produce organic fertilizer after being dehydrated, i.e., will be in small towns rubbish and sewage
Organic matter is converted into biogas and organic fertilizer, turns waste into wealth.The resource of small towns rubbish and sewage may be implemented using the system as a result,
Change and minimizing is handled, to fundamentally solve the problems, such as that small towns environment is poor.
In addition, the system of processing small towns rubbish according to the above embodiment of the present invention and sewage can also have following add
Technical characteristic:
In some embodiments of the invention, the small towns rubbish pretreatment unit include the crushing device being sequentially connected,
Concentration equipment and screening plant.Thus, it is possible to effectively recycle the metal in the rubbish of small towns and isolate inorganic impurity.
In some embodiments of the invention, above system further comprises: crushing-separating apparatus, the cracking and sorting dress
It sets and is connected with lightweight object entrance, inorganic impurity outlet and organic outlet, the lightweight object entrance with lightweight object outlet.
Thus, it is possible to efficiently separate out organic matter therein, which can be recycled, and realize the recycling benefit of waste
With.
In some embodiments of the invention, above system further comprises: burning boiler, and the burning boiler has cold
Condensate entrance, biogas entrance, combustion product gases outlet and steam (vapor) outlet, the biogas entrance is connected with the methane outlet, described
Steam (vapor) outlet is connected with the anaerobic ferment devices.Thus, it is possible to realize the self-sufficiency of system heat sources, reduce overall operation at
This.
In some embodiments of the invention, above system further comprises: purification device, and the purification device has dirt
Water inlet and water out up to standard, the sewage inlet are connected with the outlet of sewer.
In another aspect of the invention, the invention proposes a kind of methods for handling small towns rubbish and sewage.According to this
The embodiment of invention, which comprises
(1) small towns rubbish is supplied to the small towns rubbish pretreatment unit and is pre-processed, to obtain organic waste
And inorganic refuse；
(2) small towns sewage is supplied to the small towns sewage filter device and is filtered, to obtain solid impurity and to divide
Chaotropic；
(3) organic waste and the separating liquid are supplied to the flotation acidizing device and carry out flotation acidification,
To obtain lightweight object, organic liquor and heavy object；
(4) by the organic liquor supply to the anaerobic ferment devices carry out anaerobic fermentation processing, so as to obtain biogas and
Biogas residue；
(5) biogas residue is supplied to the dehydration device and is carried out dehydrating, to obtain dehydration slag and sewage；
(6) the dehydration slag is supplied to the heap turning over device and carries out compost treatment, to obtain organic fertilizer.
The method of processing small towns rubbish and sewage according to an embodiment of the present invention after the pretreatment of small towns rubbish by will separate
Organic waste mixed with the separating liquid after the sewage water filtration of small towns carry out flotation acidification, it is aqueous effectively to compensate for small towns rubbish
The problems such as rate is low, poor fluidity and stirring are difficult, and additional make-up water is no longer needed, realize organic waste and separating liquid-liquid mixtures
The organic liquor for efficiently separating, and efficiently separating of middle lightweight object, organic liquor and heavy object carries out anaerobic fermentation processing, biogas again
Yield is high, and the biogas residue generated in fermentation process is used to produce organic fertilizer after being dehydrated, i.e., will be in small towns rubbish and sewage
Organic matter is converted into biogas and organic fertilizer, turns waste into wealth.The resource of small towns rubbish and sewage may be implemented using the system as a result,
Change and minimizing is handled, to fundamentally solve the problems, such as that small towns environment is poor.
In addition, the method for processing small towns rubbish according to the above embodiment of the present invention and sewage can also have following add
Technical characteristic:
In some embodiments of the invention, the above method further comprises: the lightweight that (7) obtain step (3)
Object is supplied to crushing-separating apparatus and is sorted, to obtain inorganic impurity and organic matter.Thus, it is possible to efficiently separate out wherein
Organic matter, which can recycle, and realize the resource utilization of waste.
In some embodiments of the invention, the above method further comprises: the biogas that (8) obtain step (4)
Supply to burning boiler carries out burning and exchanges heat with condensed water, to obtain combustion product gases and steam, and the steam is returned
It is back in step (4) and indirect heating is carried out to the anaerobic ferment devices.Thus, it is possible to realize the self-sufficiency of system heat sources, reduce
Overall operation cost.
In some embodiments of the invention, the above method further comprises: the sewage that (9) obtain step (5) supplies
Purified treatment is carried out to purification device, to obtain water up to standard.
In some embodiments of the invention, in step (4), the temperature of the anaerobic fermentation is 35~39 degrees Celsius.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the system structure diagram of processing small towns rubbish according to an embodiment of the invention；
Fig. 2 is the system structure diagram of the processing small towns rubbish of further embodiment according to the present invention；
Fig. 3 is the method flow schematic diagram of processing small towns rubbish according to an embodiment of the invention；
Fig. 4 is the method flow schematic diagram of the processing small towns rubbish of further embodiment according to the present invention.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In one aspect of the invention, the invention proposes a kind of systems for handling small towns rubbish and sewage.According to this hair
Bright embodiment, with reference to Fig. 1, which includes: small towns rubbish pretreatment unit 100, small towns sewage filter device 200, flotation
Acidizing device 300, anaerobic ferment devices 400, dehydration device 500 and heap turning over device 600.
According to an embodiment of the invention, small towns rubbish pretreatment unit 100 has small towns garbage inlet 101, organic waste
Outlet 102 and inorganic refuse outlet 103, and be suitable for pre-processing small towns rubbish, to obtain organic waste and inorganic rubbish
Rubbish.Preferably, rubbish pretreatment unit in small towns includes the crushing device, concentration equipment and screening plant being sequentially connected, specifically,
Small towns rubbish carries out broken bag through apron feeder (processing capacity is 5~30t/h) supply to bag-breaking machine, is then supplied to broken dress
It sets (double-roll crusher) and carries out break process, obtain the granulated garbage of partial size 50mm or so, then through conveying device (screw conveyor
Or belt conveyor) it is delivered to concentration equipment progress magnetic separation separation, so that the irony object in rubbish is separated and recovered, residual refuse
It resupplies to screening plant (vibrating screen, sieve pore are 40~50mm) and is sieved, inorganic matter in rubbish such as brick stone etc. is big
Particulate inorganic rubbish is filled after separating from sieve, and the little particle organic waste in rubbish containing organic matter divides under sieve
From.
According to an embodiment of the invention, there is small towns sewage filter device 200 small towns sewage inlet 201, solid impurity to go out
Mouth 202 and discharge channel 203, and be suitable for being filtered processing to small towns sewage, so as to isolated separating liquid and contain
The solid impurity of bottle cap polybag etc..Specifically, small towns sewage filter device in have coarse rack (grid slot size be 1~
2mm), small towns sewage is separated through filter device by coarse rack therein.
According to an embodiment of the invention, flotation acidizing device 300 have organic waste entrance 301, separating liquid entrance 302,
Lightweight object entrance 303, organic liquor outlet 304 and heavy object outlet 305, organic waste entrance 301 exports 102 phases with organic waste
Even, separating liquid entrance 302 is connected with discharge channel 203, and is suitable for floating organic waste obtained above and separating liquid
Acidification is selected, so as to the isolated lightweight object containing paper, plastics etc. and contains little particle building waste such as sandy soil glass
Organic liquor containing organic matter of the heavy object and specific gravity of glass slag etc. between lightweight object and heavy object.Inventors have found that logical
It crosses to mix the organic waste separated after the pretreatment of small towns rubbish with the separating liquid after the sewage water filtration of small towns and carry out at flotation acidification
Reason effectively compensates for low small towns msw water content, poor fluidity and stirs the problems such as difficult, and no longer needs additional make-up water,
Efficiently separating for lightweight object in organic waste and separating liquid-liquid mixtures, organic liquor and heavy object is realized, thus for subsequent rubbish
Recycling and minimizing provide safeguard.Specifically, the flotation acidizing device is vertical stirring device, tank body is cylindrical steel
Tank body, residence time are 0.5~1d, and organic waste obtained in the rubbish pretreatment unit of small towns is sent through screw conveyor to flotation
Acidizing device, separating liquid obtained in the sewage filter device of small towns are sent through screw pump or submersible sewage pump to flotation acidizing device, and
Organic waste and the mass ratio of separating liquid are (0.8~1): 1.Thus, it is possible to significantly improve lightweight object, heavy object and organic liquor
Separative efficiency.
According to an embodiment of the invention, anaerobic ferment devices 400 have organic liquor entrance 401, methane outlet 402 and biogas residue
Outlet 403, organic liquor entrance 401 are connected with organic liquor outlet 304, and are suitable for above-mentioned isolated organic liquor carrying out anaerobism
Fermentation, to obtain biogas and biogas residue.Specifically, the anaerobic ferment devices are vertical stirring device, tank body is cylindrical steel
Tank body processed, residence time are 25~30d, and moisture content is 90~95wt% in organic liquor, by organic liquor obtained above through plunger
Pump or screw pump are supplied into anaerobic ferment devices, and the temperature of anaerobic fermentation process is 35~39 degrees Celsius.Pass through as a result,
Organic liquor after small towns rubbish and small towns sewage treatment is subjected to anaerobic fermentation processing, there is very high factor of created gase, to improve
Its economic value.
According to an embodiment of the invention, dehydration device 500 has biogas residue entrance 501, dehydration slag outlet 502 and outlet of sewer
503, biogas residue entrance 501 is connected with biogas residue outlet 403, and is suitable for being carried out dehydrating biogas residue obtained above, to obtain
It is dehydrated slag (water content is 70~80wt%) and sewage.It is filled specifically, supplying biogas residue obtained above through screw pump to dehydration
It sets, and the dehydration device is centrifugal dehydrator or frame dehydration machine.
According to an embodiment of the invention, heap turning over device 600 has dehydration slag entrance 601 and organic fertilizer outlet 602, it is dehydrated slag
Entrance 601 is connected with dehydration slag outlet 502, and use carries out compost to dehydration slag obtained above, should to obtain organic fertilizer
Organic fertilizer can be used for farmland gardens fertilising etc..
The system of processing small towns rubbish and sewage according to an embodiment of the present invention after the pretreatment of small towns rubbish by will separate
Organic waste mixed with the separating liquid after the sewage water filtration of small towns carry out flotation acidification, it is aqueous effectively to compensate for small towns rubbish
The problems such as rate is low, poor fluidity and stirring are difficult, and additional make-up water is no longer needed, realize organic waste and separating liquid-liquid mixtures
The organic liquor for efficiently separating, and efficiently separating of middle lightweight object, organic liquor and heavy object carries out anaerobic fermentation processing, biogas again
Yield is high, and the biogas residue generated in fermentation process is used to produce organic fertilizer after being dehydrated, i.e., will be in small towns rubbish and sewage
Organic matter is converted into biogas and organic fertilizer, turns waste into wealth.The resource of small towns rubbish and sewage may be implemented using the system as a result,
Change and minimizing is handled, to fundamentally solve the problems, such as that small towns environment is poor.
Further, with reference to Fig. 2, the system of above-mentioned processing small towns rubbish and sewage further include: crushing-separating apparatus 700,
Burning boiler 800 and purification device 900.
According to an embodiment of the invention, there is crushing-separating apparatus 700 lightweight object entrance 701, inorganic impurity to export 702 and
Organic outlet 703, lightweight object entrance 701 is connected with lightweight object outlet 303, and carries out brokenly to above-mentioned isolated lightweight object
Broken sorting, to separate inorganic impurity and organic matter.Specifically, the crushing-separating apparatus be centrifugal classifier, by high speed from
Heart separate mode isolates the organic matter containing plastics and paper etc. and is back to its original production process, and isolated inorganic miscellaneous
Matter landfill.
According to an embodiment of the invention, burning boiler 800 has condensing water inlet 801, biogas entrance 802, combustion product gases
Outlet 803 and steam (vapor) outlet 804, biogas entrance 802 are connected with methane outlet 402, steam (vapor) outlet 804 and anaerobic ferment devices
400 be connected, and be suitable for by above-mentioned anaerobic fermentation processing generate biogas supply burn into burning boiler to condensed water into
Row heating, obtains combustion product gases and steam, steam, which is supplied, provides heat source into anaerobic ferment devices.Thus, it is possible to realize system
The self-sufficiency of heat source reduces overall operation cost.
According to an embodiment of the invention, purification device 900 has sewage inlet 901 and water out up to standard 902, sewage inlet
901 are connected with outlet of sewer 503, and the sewage for being suitable for obtaining above-mentioned dehydration purifies, and obtains water up to standard.Specifically
, purification device is activated carbon adsorption device, ultrafiltration apparatus or nanofiltration device.
As described above, the system of processing small towns rubbish according to an embodiment of the present invention and sewage can have selected from following excellent
At least one point:
(1) system of processing small towns rubbish and sewage according to an embodiment of the present invention can separate the inorganic miscellaneous of small towns rubbish
Matter, organic matter, metal, heavy object, lightweight object etc. reach the purpose of " efficiently separating, resource utilization ".
(2) system of processing small towns rubbish and sewage according to an embodiment of the present invention is adopted by the organic liquor after efficiently separating
There is very high factor of created gase with anaerobic fermentation, do not need additionally to supplement dilution water, be diluted using small towns sewage, reach small towns
The complementation of rubbish and sewage.
(3) organic matter is converted biogas well by the system of processing small towns rubbish and sewage according to an embodiment of the present invention
Equal clean energy resourcies, energy recovery is high-efficient, and additional supplemental heat source is not needed in system, reduces overall operation cost.
(4) system of processing small towns rubbish and sewage according to an embodiment of the present invention is organic by generating after turning by rubbish
Fertilizer, apply fertilizer for farmland, gardens etc., recycling and minimizing degree are high, achieve the purpose that ecological circulation well.
In another aspect of the invention, the invention discloses a kind of methods for handling small towns rubbish and sewage.According to this
The embodiment of invention, with reference to Fig. 3, this method comprises:
S100: small towns rubbish is supplied to small towns rubbish pretreatment unit and is pre-processed
In the step, small towns rubbish is supplied to small towns rubbish pretreatment unit and is pre-processed, to obtain organic rubbish
Rubbish and inorganic refuse.Preferably, rubbish pretreatment unit in small towns includes the crushing device being sequentially connected, concentration equipment and screening dress
It sets, specifically, small towns rubbish carries out broken bag through apron feeder (processing capacity is 5~30t/h) supply to bag-breaking machine, then supplies
Break process is carried out to crushing device (double-roll crusher), obtains the granulated garbage of partial size 50mm or so, then through conveying device
(screw conveyor or belt conveyor) is delivered to concentration equipment and carries out magnetic separation separation, so that the irony object in rubbish is separated back
It receives, residual refuse is resupplied to screening plant (vibrating screen, sieve pore are 40~50mm) and sieved, the inorganic matter brick in rubbish
The bulky grains inorganic refuse such as stone is filled after separating from sieve, and the lower particle organic waste in rubbish containing organic matter exists
The lower separation of sieve.
S200: small towns sewage is supplied to small towns sewage filter device and is filtered
In the step, small towns sewage is supplied to small towns sewage filter device and is filtered, so as to isolated separating liquid
And the solid impurity containing bottle cap polybag etc..Specifically, having coarse rack in the sewage filter device of small towns, (grid sieve pore is big
Small is 1~2mm), small towns sewage is separated through filter device by coarse rack therein.
S300: organic waste and separating liquid are supplied to flotation acidizing device and carry out flotation acidification
In the step, organic waste obtained above and separating liquid are supplied to flotation acidizing device and carried out at flotation acidification
Reason, so as to the isolated lightweight object containing paper, plastics etc. and contains little particle building waste such as sandy soil glass dregs etc.
The organic liquor containing organic matter of heavy object and specific gravity between lightweight object and heavy object.Inventors have found that by by small towns
The organic waste separated after rubbish pretreatment is mixed with the separating liquid after the sewage water filtration of small towns carries out flotation acidification, effectively more
The problems such as having mended low small towns msw water content, poor fluidity and stirring difficulty, and additional make-up water is no longer needed, realize organic rubbish
Lightweight object in rubbish and separating liquid-liquid mixtures, organic liquor and heavy object efficiently separate, thus for subsequent rubbish recycling and subtract
Quantization provides safeguard.Specifically, the flotation acidizing device is vertical stirring device, tank body is cylindrical steel tank, is stopped
Time is 0.5~1d, and organic waste obtained in the rubbish pretreatment unit of small towns is sent through screw conveyor to flotation acidizing device,
Separating liquid obtained in the sewage filter device of small towns is sent through screw pump or submersible sewage pump to flotation acidizing device, and organic waste and
The mass ratio of separating liquid is (0.8~1): 1.Thus, it is possible to significantly improve the separative efficiency of lightweight object, heavy object and organic liquor.
S400: organic liquor is supplied to anaerobic ferment devices and carries out anaerobic fermentation processing
In the step, above-mentioned isolated organic liquor is supplied to anaerobic ferment devices and carries out anaerobic fermentation, so as to
To biogas and biogas residue.Specifically, the anaerobic ferment devices are vertical stirring device, tank body is cylindrical steel tank, is stopped
Time is 25~30d, and moisture content is 90~95wt% in organic liquor, and organic liquor obtained above is supplied through plunger pump or screw pump
To into anaerobic ferment devices, and the temperature of anaerobic fermentation process is 35~39 degrees Celsius.As a result, by by small towns rubbish and
Organic liquor after the sewage treatment of small towns carries out anaerobic fermentation processing, has very high factor of created gase, to improve its economic value.
S500: biogas residue is supplied to dehydration device and is carried out dehydrating
In the step, biogas residue obtained above is supplied to dehydration device and is carried out dehydrating, to obtain dehydration slag (water
Content is 70~80wt%) and sewage.Specifically, biogas residue obtained above is supplied through screw pump to dehydration device, and should
Dehydration device is centrifugal dehydrator or frame dehydration machine.
S600: dehydration slag is supplied to heap turning over device and carries out compost treatment
In the step, dehydration slag obtained above is supplied to heap turning over device compost, to obtain organic fertilizer, this has
Machine fertilizer can be used for farmland gardens fertilising etc..
The method of processing small towns rubbish and sewage according to an embodiment of the present invention after the pretreatment of small towns rubbish by will separate
Organic waste mixed with the separating liquid after the sewage water filtration of small towns carry out flotation acidification, it is aqueous effectively to compensate for small towns rubbish
The problems such as rate is low, poor fluidity and stirring are difficult, and additional make-up water is no longer needed, realize organic waste and separating liquid-liquid mixtures
The organic liquor for efficiently separating, and efficiently separating of middle lightweight object, organic liquor and heavy object carries out anaerobic fermentation processing, biogas again
Yield is high, and the biogas residue generated in fermentation process is used to produce organic fertilizer after being dehydrated, i.e., will be in small towns rubbish and sewage
Organic matter is converted into biogas and organic fertilizer, turns waste into wealth.The resource of small towns rubbish and sewage may be implemented using the system as a result,
Change and minimizing is handled, to fundamentally solve the problems, such as that small towns environment is poor.
Further, with reference to Fig. 4, the method for above-mentioned processing small towns rubbish and sewage further include:
S700: the lightweight object that step S300 is obtained is supplied to crushing-separating apparatus and is sorted
In the step, the lightweight object that step S300 is obtained is supplied to crushing-separating apparatus and carries out cracking and sorting, to divide
From inorganic impurity and organic matter.Specifically, the crushing-separating apparatus is centrifugal classifier, separated by the mode of being centrifuged at a high speed
Organic matter out containing plastics and paper etc. is back to its original production process, and isolated inorganic impurity landfill.
S800: the obtained biogas of step S400 is supplied and carries out burning to burning boiler and exchanges heat with condensed water, and general
Steam is back to step S400
In the step, the biogas that the processing of above-mentioned steps S400 anaerobic fermentation generates is supplied and is burnt into burning boiler
Condensed water is heated, obtains combustion product gases and steam, steam is supplied to anaerobic ferment devices to be detested as the holding of indirect heat source
The anaerobic fermentation temperature for being suitable in aerobe fermentation device.Thus, it is possible to realize the self-sufficiency of system heat sources, reduce overall operation at
This.
S900: the obtained sewage of step S500 is supplied to purification device and carries out purified treatment
In the step, the sewage that above-mentioned steps S500 dehydration obtains is supplied to purification device and is purified, is obtained
Water up to standard.Specifically, purification device is activated carbon adsorption device, ultrafiltration apparatus or nanofiltration device.
Below with reference to specific embodiment, present invention is described, it should be noted that these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment
Using the small towns rubbish and sewage disposal system of the embodiment of the present invention, it is as follows that process is embodied:
The small towns garbage disposal project of 100 ton/days of scales, through apron feeder, (processing capacity is 5~30t/ to small towns rubbish
H) supply to bag-breaking machine carries out broken bag, is then supplied to double-roll crusher and carries out break process, obtains the rubbish of partial size 50mm or so
Rubbish particle, then be delivered to concentration equipment through screw conveyor and carry out magnetic separation separation, so that the irony object in rubbish is separated and recovered,
Residual refuse is resupplied to vibrating screen, and sieve pore is that 40~50mm is sieved, and inorganic matter in rubbish such as brick stone etc. big
Grain inorganic refuse is filled after separating from sieve and (removes 20 ton/days of inorganic impurity), and small in rubbish containing organic matter
Grain organic waste separates under sieve, has coarse rack (grid slot size is 1~2mm), small towns in the sewage filter device of small towns
Sewage (small towns sewage quantity be 100 ton/days) is separated through filter device by coarse rack therein, isolated separating liquid with it is organic
Rubbish is supplied into flotation souring tank, 5 ton/days of heavy substance is removed after flotation, 5 ton/days of light materials, organic liquor is defeated by screw pump
It send to anaerobic fermentation tank, the organic liquor total amount into anaerobic fermentation tank is 170 ton/days, and the temperature in anaerobic ferment devices is kept
Biogas is generated at 35 ± 2 DEG C, after being fermented by pipeline to boiler combustion, the yield of biogas is 30~40m3/ ton has
Machine liquid, wherein methane content is methane, the carbon dioxide of 35~40v% etc. of 55~60v%；The biogas residue generated after fermentation is logical
It crosses screw pump and is delivered to filter-pressing device dehydration, the biogas residue amount into filter-pressing device is 162 ton/days, after being separated by filter-pressing device
Biogas residue amount be 16 ton/days, organic fertilizer yield after heap turning over device turning is 10 ton/days, and sewage yield is 146 ton/days.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of system for handling small towns rubbish and sewage characterized by comprising
Small towns rubbish pretreatment unit, the small towns rubbish pretreatment unit have small towns garbage inlet, organic waste outlet and
Inorganic refuse outlet；
Small towns sewage filter device, the small towns sewage filter device have small towns sewage inlet, solid impurity outlet and separation
Liquid outlet；
Flotation acidizing device, the flotation acidizing device have organic waste entrance, separating liquid entrance, lightweight object entrance, organic
Liquid outlet and the outlet of heavy object, the organic waste entrance are connected with organic waste outlet, the separating liquid entrance and institute
Discharge channel is stated to be connected；
Anaerobic ferment devices, the anaerobic ferment devices have organic liquor entrance, methane outlet and biogas residue outlet, the organic liquor
Entrance is connected with organic liquor outlet；
Dehydration device, the dehydration device have biogas residue entrance, dehydration slag outlet and outlet of sewer, the biogas residue entrance with it is described
Biogas residue outlet is connected；
Heap turning over device, the heap turning over device have dehydration slag entrance and organic fertilizer outlet, the dehydration slag entrance and the dehydration
Slag outlet is connected.
2. system according to claim 1, which is characterized in that the small towns rubbish pretreatment unit includes being sequentially connected
Crushing device, concentration equipment and screening plant.
3. system according to claim 1 or 2, which is characterized in that further comprise:
Crushing-separating apparatus, the crushing-separating apparatus has lightweight object entrance, inorganic impurity outlet and organic outlet, described
Lightweight object entrance is connected with lightweight object outlet.
4. system according to claim 3, which is characterized in that further comprise:
Burning boiler, the burning boiler has condensing water inlet, biogas entrance, combustion product gases outlet and steam (vapor) outlet, described
Biogas entrance is connected with the methane outlet, and the steam (vapor) outlet is connected with the anaerobic ferment devices.
5. system according to claim 1, which is characterized in that further comprise:
Purification device, the purification device have sewage inlet and water out up to standard, the sewage inlet and the outlet of sewer
It is connected.
6. a kind of method using system of any of claims 1-5 processing small towns rubbish and sewage, feature exist
In, comprising:
(1) small towns rubbish is supplied to the small towns rubbish pretreatment unit and is pre-processed, to obtain organic waste and nothing
Machine rubbish；
(2) small towns sewage is supplied to the small towns sewage filter device and is filtered, to obtain solid impurity and separating liquid；
(3) organic waste and the separating liquid are supplied to the flotation acidizing device and carries out flotation acidification, so as to
Obtain lightweight object, organic matter and heavy object；
(4) organic liquor is supplied to the anaerobic ferment devices and carries out anaerobic fermentation processing, to obtain biogas and biogas residue；
(5) biogas residue is supplied to the dehydration device and is carried out dehydrating, to obtain dehydration slag and sewage；
(6) the dehydration slag is supplied to the heap turning over device and carries out compost treatment, to obtain organic fertilizer.
7. according to the method described in claim 6, it is characterized in that, further comprising:
(7) the lightweight object for obtaining step (3), which is supplied to crushing-separating apparatus, sorts, so as to obtain inorganic impurity and
Organic matter.
8. method according to claim 6 or 7, which is characterized in that further comprise:
(8) biogas that step (4) obtains is supplied to burning boiler burn and is exchanged heat with condensed water, to obtain
Combustion product gases and steam, and the steam is back in step (4), indirect heating is carried out to the anaerobic ferment devices.
9. according to the method described in claim 6, it is characterized in that, further comprising:
(9) sewage that step (5) obtains is supplied to purification device and carries out purified treatment, to obtain water up to standard.
10. according to the method described in claim 6, it is characterized in that, the temperature of the anaerobic fermentation is 35 in step (4)
~39 degrees Celsius.
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| CN201910754643.8A CN110436711A (en) | 2019-08-15 | 2019-08-15 | Handle the system and method for small towns rubbish and sewage |
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| CN201910754643.8A CN110436711A (en) | 2019-08-15 | 2019-08-15 | Handle the system and method for small towns rubbish and sewage |
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| CN210736465U (en) * | 2019-08-15 | 2020-06-12 | 北京云水浩瑞环境科技有限公司 | System for handle garbage and sewage in villages and towns |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990007697A (en) * | 1998-10-22 | 1999-01-25 | 장기훈 | Combined treatment of food waste and sewage sludge |
| CN101988076A (en) * | 2009-07-31 | 2011-03-23 | 辽宁北方环境保护有限公司 | Method for producing biogas by garbage union fermentation |
| US20110315626A1 (en) * | 2009-11-04 | 2011-12-29 | Huge Asia Limited | Method and system for treating domestic sewage and organic garbage |
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