CN101215048A - Highly effective anaerobic reaction water treatment method and device for kitchen garbage - Google Patents
Highly effective anaerobic reaction water treatment method and device for kitchen garbage Download PDFInfo
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- CN101215048A CN101215048A CNA2007103060095A CN200710306009A CN101215048A CN 101215048 A CN101215048 A CN 101215048A CN A2007103060095 A CNA2007103060095 A CN A2007103060095A CN 200710306009 A CN200710306009 A CN 200710306009A CN 101215048 A CN101215048 A CN 101215048A
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- kitchen garbage
- anaerobic
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 21
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000002351 wastewater Substances 0.000 claims abstract description 26
- 230000020477 pH reduction Effects 0.000 claims abstract description 16
- 239000010865 sewage Substances 0.000 claims description 19
- 239000004744 fabric Substances 0.000 claims description 10
- 239000010802 sludge Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- 239000003513 alkali Substances 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 239000001117 sulphuric acid Substances 0.000 claims description 2
- 235000011149 sulphuric acid Nutrition 0.000 claims description 2
- 239000002912 waste gas Substances 0.000 claims 1
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000004065 wastewater treatment Methods 0.000 abstract 1
- 239000010794 food waste Substances 0.000 description 20
- 241000287828 Gallus gallus Species 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 235000013305 food Nutrition 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 241000272496 Galliformes Species 0.000 description 1
- 102000004895 Lipoproteins Human genes 0.000 description 1
- 108090001030 Lipoproteins Proteins 0.000 description 1
- 241000282887 Suidae Species 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 235000005911 diet Nutrition 0.000 description 1
- 230000037213 diet Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000011499 joint compound Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009885 systemic effect Effects 0.000 description 1
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses an anoxybiotic-anaerobic reactor for treating garbage and waste water of eat hutches and a method of waste water treatment using the reactor. The reactor sequentially comprises a reducing pipe line, an anoxybiotic acidification tank, an impulse water distributor, an anaerobic reactor and the like. The reactor used to treat the garbage and waste water of eat hutches can high-effectively entrap SS and avoid suspended matters blocking the anaerobic reactor and the pipeline, under the reaction condition of 35+-3DEG C, the removal rate of COD is 85%, the removal rate of BOD is 90%, the removal rate of SS is 98%, and simultaneously high-quality methane gas is produced.
Description
Technical field
The present invention relates to a kind of highly effective anaerobic reaction water technology, be specifically related to changing food waste highly effective anaerobic reaction water treatment method and device thereof.
Technical background
Along with urbanization process is accelerated, people's living standard significantly improves, the food and restaurant service industry fast development.Yet,, cause a large amount of changing food wastes to produce because China's inherent living and diet is accustomed to and is had the part wasting phenomenon.Changing food waste is the rotten organic waste of a kind of easy fermentation, past is often directly transported to the rural area as pig, chicken feed etc., because processes such as non-sterile, harmless treatment, changing food waste is directly fed domestic animals and fowls such as pig, chicken and is caused pathogenic bacteria to propagate and the homology biological pollution easily, and these " rubbish pigs ", " rubbish chicken " further enter the human foods chain and can form potential food safety hidden danger.
The direct sanitary landfill of changing food waste is handled, and will cause the landfill yard moisture content to increase, and the stench that rubbish fermentation produces also can cause serious secondary pollution to environment.The direct landfill disposal of changing food waste is forbidden by strictness in many developed countries.
At present, changing food waste handles that one of the most effective way is the dryingization processing.The dryingization processing is promptly directly or indirectly heated changing food waste by thermal medium, evaporating water, the pathogenic bacterium of deactivation simultaneously, and unchangeability such as the protein in the reservation changing food waste, fat, Mierocrystalline cellulose, make the feed that can be used as non-homology animals such as soil and fertilizer and fish after the processing of changing food waste dryingization.Dryingization processing changing food waste process is: 1, compression dehydration, and changing food waste compresses in compressor removes most of moisture; 2, fragmentation by crusher in crushing bulk rubbish, makes that moisture further discharges in the rubbish; 3, second-compressed is compressed in compressor, removes moisture; 4, evaporate to dryness, evaporate to dryness in moisture eliminator, but dryer temperature remains on direct heating or indirect heating between 90 ℃～120 ℃, and heating can be coal, diesel oil, Sweet natural gas etc. with fuel.
In whole dryization process, all will produce kitchen garbage, waste-water, wherein the waste water of 1,2,3 stages generation is high concentrated organic wastewater, contains a large amount of organism, animal grease, Vegetable oil lipoprotein, suspended substance etc., waste water is acid, yellow thickness, and the intensive acid smell is arranged.4 stages produced waste water and are steam condition, also contained a large amount of VFA, volatility grease etc.Kitchen garbage, waste-water directly discharges, can cause very big pollution to environment, when directly entering urban drainage pipe network, the a large amount of greases that contain in the waste water, can influence the urban drainage pipe network discharge capacity, also can increase it and handle load, reduce the water treatment efficiency of sewage work, have a strong impact on the normal operation of city domestic sewage treatment plant.
At the characteristic of kitchen garbage, waste-water, common treatment process adopts process meanses such as oil removal processing, acid-base neutralisation, anaerobic biological processing, aerobic biochemical processing, and wherein the anaerobic biological processing is the main undertaker who removes the organic pollutant load.The efficient that anaerobic biological is handled is just directly determining the working cost of entire treatment technology, also is the key factor that can the operation of decision technology successful.Traditional anaerobic biological treatment process faces following problem usually when handling kitchen garbage, waste-water:
1, contain fibrous object, hard particles foreign material, soft foreign material in the waste water, when this waste water entered water distribution system, dirty easily stifled water-distributing gap caused the water distribution difficulty to make systemic breakdown, and then causes anaerobic reactor to stop up.
2, suspension content height such as swill in the kitchen garbage, waste-water adopts common water distribution system, forms bias current in the waste water uphill process easily, causes localised load too high, and total system is removed efficient and reduced.
3, solution is acid, if directly enter anaerobic reactor, will suppress the growth of methanogen, thereby makes reaction only be retained in souring stage and can't carry out the methanation deep reaction.
4, anaerobic reactor water outlet after operation for some time, can produce serious fouling latch up phenomenon, causes rising pipe water outlet difficulty.
5, key component such as the triphase separator in anaeroic digestor such as the flow lifting type anaerobic sludge reaction bed (UASB), mud, water, gas separating effect are bad, mud can not effectively be back to the settling region, but flow out with water, cause anaerobic sludge to run off, suspension content also increases thereupon in the water outlet simultaneously.
Summary of the invention
In order to overcome above-mentioned defective of the prior art, the invention provides a kind of changing food waste highly effective anaerobic reaction water treatment device and method:
This changing food waste highly effective anaerobic reaction water treatment device comprises tapered pipeline, anoxic acidification pool, pulse water distribution device and anaerobic reactor etc. successively.
Described sewage source sewage that to be changing food waste produce in compression, fragmentation and second-compressed and high temperature organic exhaust gas water coolant etc.
Described tapered pipeline is followed successively by 6cm, 4cm, 3cm, connects by adapter flange between the pipe; Filter screen is housed in the pipeline, on the pipeline before and after the filter screen valve is housed, the filter screen aperture is 1～5mm, and filter screen is made by the pp material.
Described acidication trench bottom is installed vapour pipe and line temperature sensor.
Described pulse water-feeding pipe water outlet is equipped with stopping valve, and stopping valve is connected with pressure controller.
Described anaerobic reactor is 5 districts from bottom to top altogether: be respectively cloth pool, sludge reaction district, settling region, clear water zone, biogas district.Bottom, cloth pool has pulse water-feeding pipe, clear water zone that sewage internal circulation pump, water outlet overflow groove are housed.Four shore supports settling baths are positioned at the settling region, and the mud in the settling bath flows into reaction zone by return line.Scum silica frost skims device and is installed in settling bath top.Pressure detector, methane outlet pipe are equipped with in the biogas district, and the biogas that outlet pipe is discharged enters the marsh gas purifying case, in the marsh gas purifying case biologic packing material is housed.
The method of utilizing changing food waste highly effective anaerobic reaction water treatment device to dispose of sewage of the present invention comprises:
The sewage that produces in the drying processing changing food waste process is concentrated in the mixing pit, be promoted to tapered pipeline through corrosion-resistant sump pump, through after the pipeline of different apertures filter screen is housed, flow into the anoxic acidification pool, by the temperature in the online temperature controller control anoxic acidification pool at 25 ℃～40 ℃, behind the acidication 5～10 hours, pump into the pulse water distribution device, flow into the cloth pool of anaerobic reactor then, sewage rises successively through the cloth pool and flows out anaerobic reactor after entering sludge reaction district, settling region, clear water zone; The biogas that the anerobic sowage process produces rises to the collecting methane district, enters the marsh gas purifying case reach the pressure of setting when pressure after.
Remove the efficient height by the sewage pollution thing after the high efficiency anaerobic reactor processing of the present invention, COD, BOD clearance are respectively 85%, 90%, the water outlet ammonia nitrogen concentration rises to 1500～2000mg/l, and pH is 6.7～7.8, is not prone to the pipeline dirt and blocks up and do not produce secondary pollutant.Sewage through the subsequent technique advanced treatment can be back to washing, irrigation etc.Produce a large amount of biogas in the treating processes, can be used as methane boiler fuel, both saved the energy, improved the reusing of energy source rate again.
Description of drawings
Fig. 1 is efficient lacking-anaerobic reaction water treatment structure synoptic diagram.
1. tapered pipeline 2. filter screens 1
3. filter screen 2 4. filter screens 3
5. anoxic acidification pool 6. vapour pipes
7. line temperature sensor 8. pulse water distribution devices
9. add alkali groove 10.pH instrument
11. blower fan 12. sulphuric acid tanks
13. anaerobic reactor 14. cloth pools
15. 16. settling regions, sludge reaction district
17. collecting methane district 18. desulfurization dewatering jars
19. scum silica frost skimmer 20. settling baths
21. return line 22. rising pipes
Embodiment
The sewage that produces in the drying processing changing food waste process is concentrated in the mixing pit, sewage is pumped into tapered pipeline 1, be installed into water screen 1, filter screen 2 and filter screen 3 on pipeline, the filter screen mesh is 3～10mm, dismantled and assembled cleaning.Sewage behind strainer filtering enters anoxic acidification pool 5, vapour pipe 6 is installed in anoxic acidification pool bottom, by line temperature sensor 7 controlled temperature, open heating when temperature is lower than below 30 ℃ in the anoxic acidification pool, make the temperature in the acidification pool remain on 30 ℃, the acidified water trough inner water power residence time is 7h.The sewage that is come out by acidification pool enters cloth pool, anaerobic reactor bottom 14 by pulse water distribution device 8, water inlet rises to settling bath 20 through sludge reaction district 15, sludge settling is after return line flows into settling region 16,50% water outlet is flowed out anaerobic reactor through rising pipe 22, and 50% water outlet flows into the anaerobic reactor inhalant region by sewage (waste water) recirculating pump.The CO that organism anaerobic digestion in the waste water produces
2Rise to fluid surface with methane gas, enter collecting methane district 17, collecting methane district biogas enters desulfurization dewatering jar 18 purifying treatment, and biogas after treatment is used for replenishing the changing food waste dry heat.
Claims (7)
1. a kitchen garbage, waste-water is handled anoxic-anaerobic reaction apparatus, and it is characterized in that: this device comprises tapered pipeline, anoxic acidification pool, pulse water distribution device and anaerobic reactor successively.
2. kitchen garbage, waste-water according to claim 1 is handled anoxic-anaerobic reaction apparatus, it is characterized in that: the diameter of tapered pipeline is followed successively by 6cm, 4cm, 3cm, the filter screen in different apertures is housed in the pipeline, the filter screen aperture is respectively 5-10mm, 3-5mm, 1-3mm, and the filter screen compactedness of different tube diameters is respectively 30%, 50%, 80%.
3. kitchen garbage, waste-water according to claim 1 is handled anoxic-anaerobic reaction apparatus, it is characterized in that: steam heating tube is equipped with in anoxic acidification pool bottom, and sewage temperature is controlled at 25-40 ℃ by online temperature controller; Anoxic acidification pool top covered and enclosed, waste gas is connected by pipeline and blower fan in the pond; The anoxic acidification pool is furnished with the alkali of adding groove, adds the sewage pH control that alkali number is set by the acidifying water outlet by control valve.
4. kitchen garbage, waste-water according to claim 1 is handled anoxic-anaerobic reaction apparatus, and it is characterized in that: pulse water distribution device water outlet is equipped with pressure stop valve, and water distribution pipe top is connected with sulphuric acid tank, and by-pass valve control is housed on the pipeline.
5. kitchen garbage, waste-water according to claim 4 is handled anoxic-anaerobic reaction apparatus, it is characterized in that: when hydraulic pressure is lower than 5m, sulfuric acid is pumped into pipe blow-through.
6. kitchen garbage, waste-water according to claim 1 is handled anoxic-anaerobic reaction apparatus, and it is characterized in that: described anaerobic reactor is 5 districts from bottom to top altogether: be respectively cloth pool, sludge reaction district, settling region, clear water zone, biogas district; The pulse water-feeding pipe is equipped with in bottom, cloth pool, and clear water zone is equipped with sewage internal circulation pump, water outlet overflow groove; Four shore supports settling baths are positioned at the settling region, and the mud in the settling bath flows into reaction zone by return line; Scum silica frost skims device and is installed in settling bath top; Pressure detector, methane outlet pipe are equipped with in the biogas district, and the biogas that outlet pipe is discharged enters the marsh gas purifying case, in the marsh gas purifying case biologic packing material is housed.
7. utilize the described kitchen garbage, waste-water of claim 1-6 to handle anoxic-anaerobic reaction apparatus and carry out the treatment process of kitchen garbage, waste-water, it is characterized in that: earlier waste water is pumped into tapered pipeline, through after the pipeline of different apertures filter screen is housed, flow into the anoxic acidification pool, by the temperature in the online temperature controller control anoxic acidification pool at 25 ℃～40 ℃, behind the acidication 5～10 hours, pump into the pulse water distribution device, flow into the cloth pool of anaerobic reactor then, sewage rises successively through the cloth pool and flows out anaerobic reactor after entering sludge reaction district, settling region, clear water zone; The biogas that the anerobic sowage process produces rises to the collecting methane district, enters the marsh gas purifying case reach the pressure of setting when pressure after.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007103060095A CN100486912C (en) | 2007-12-28 | 2007-12-28 | Highly effective anaerobic reaction water treatment method and device for kitchen garbage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007103060095A CN100486912C (en) | 2007-12-28 | 2007-12-28 | Highly effective anaerobic reaction water treatment method and device for kitchen garbage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101215048A true CN101215048A (en) | 2008-07-09 |
| CN100486912C CN100486912C (en) | 2009-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007103060095A Active CN100486912C (en) | 2007-12-28 | 2007-12-28 | Highly effective anaerobic reaction water treatment method and device for kitchen garbage |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277295A (en) * | 2011-08-16 | 2011-12-14 | 万洪欣 | Renewable energy device for anaerobic digestion of indoor organic waste |
| CN104646390A (en) * | 2013-11-19 | 2015-05-27 | 深圳德瑞新能科技有限公司 | High-efficiency low-energy-consumption kitchen garbage comprehensive treatment method |
| CN105129978A (en) * | 2014-06-09 | 2015-12-09 | 成都新筑展博环保科技有限公司 | Dining wastewater treatment method |
| CN105174440A (en) * | 2014-06-09 | 2015-12-23 | 成都新筑展博环保科技有限公司 | Catering sewage treatment system |
| CN109650643A (en) * | 2017-10-12 | 2019-04-19 | 韩菲 | A kind of self-loopa sewage-treatment plant |
| CN109694821A (en) * | 2017-10-20 | 2019-04-30 | 同方环境股份有限公司 | A kind of anaerobic digestion device of kitchen garbage |
-
2007
- 2007-12-28 CN CNB2007103060095A patent/CN100486912C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277295A (en) * | 2011-08-16 | 2011-12-14 | 万洪欣 | Renewable energy device for anaerobic digestion of indoor organic waste |
| CN104646390A (en) * | 2013-11-19 | 2015-05-27 | 深圳德瑞新能科技有限公司 | High-efficiency low-energy-consumption kitchen garbage comprehensive treatment method |
| CN105129978A (en) * | 2014-06-09 | 2015-12-09 | 成都新筑展博环保科技有限公司 | Dining wastewater treatment method |
| CN105174440A (en) * | 2014-06-09 | 2015-12-23 | 成都新筑展博环保科技有限公司 | Catering sewage treatment system |
| CN109650643A (en) * | 2017-10-12 | 2019-04-19 | 韩菲 | A kind of self-loopa sewage-treatment plant |
| CN109694821A (en) * | 2017-10-20 | 2019-04-30 | 同方环境股份有限公司 | A kind of anaerobic digestion device of kitchen garbage |
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| Publication number | Publication date |
|---|---|
| CN100486912C (en) | 2009-05-13 |
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