CN101081398A - Apparatus and method for treatment of food waste - Google Patents
Apparatus and method for treatment of food waste Download PDFInfo
- Publication number
- CN101081398A CN101081398A CNA2006101399160A CN200610139916A CN101081398A CN 101081398 A CN101081398 A CN 101081398A CN A2006101399160 A CNA2006101399160 A CN A2006101399160A CN 200610139916 A CN200610139916 A CN 200610139916A CN 101081398 A CN101081398 A CN 101081398A
- Authority
- CN
- China
- Prior art keywords
- denitration
- treated
- groove
- sludge
- food refuse
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000010794 food waste Substances 0.000 title abstract 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000010802 sludge Substances 0.000 claims abstract description 37
- 239000007789 gas Substances 0.000 claims abstract description 21
- MMDJDBSEMBIJBB-UHFFFAOYSA-N [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] Chemical compound [O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[NH6+3] MMDJDBSEMBIJBB-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000006228 supernatant Substances 0.000 claims abstract description 16
- 235000013305 food Nutrition 0.000 claims description 60
- 239000000126 substance Substances 0.000 claims description 47
- 238000005273 aeration Methods 0.000 claims description 32
- 230000029087 digestion Effects 0.000 claims description 24
- 230000001079 digestive effect Effects 0.000 claims description 21
- 238000000354 decomposition reaction Methods 0.000 claims description 20
- 238000012545 processing Methods 0.000 claims description 20
- 244000005700 microbiome Species 0.000 claims description 17
- 230000000813 microbial effect Effects 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 230000018044 dehydration Effects 0.000 claims description 12
- 238000006297 dehydration reaction Methods 0.000 claims description 12
- 150000007524 organic acids Chemical class 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 11
- 229910052799 carbon Inorganic materials 0.000 claims description 11
- 238000001556 precipitation Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 10
- 239000008394 flocculating agent Substances 0.000 claims description 9
- 239000012141 concentrate Substances 0.000 claims description 7
- 239000010813 municipal solid waste Substances 0.000 claims description 7
- 239000002562 thickening agent Substances 0.000 claims description 7
- 238000002203 pretreatment Methods 0.000 claims description 6
- 230000004913 activation Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 239000004411 aluminium Substances 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 23
- 229910001868 water Inorganic materials 0.000 abstract description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 22
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 11
- 230000015556 catabolic process Effects 0.000 abstract description 2
- 238000007599 discharging Methods 0.000 abstract description 2
- 239000002244 precipitate Substances 0.000 abstract description 2
- 229910002651 NO3 Inorganic materials 0.000 abstract 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000000593 degrading effect Effects 0.000 abstract 1
- 239000011368 organic material Substances 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 230000005484 gravity Effects 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 239000011574 phosphorus Substances 0.000 description 4
- 102000004169 proteins and genes Human genes 0.000 description 4
- 108090000623 proteins and genes Proteins 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 3
- 238000004176 ammonification Methods 0.000 description 3
- 150000001720 carbohydrates Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 235000015097 nutrients Nutrition 0.000 description 3
- 238000010298 pulverizing process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- JVMRPSJZNHXORP-UHFFFAOYSA-N ON=O.ON=O.ON=O.N Chemical compound ON=O.ON=O.ON=O.N JVMRPSJZNHXORP-UHFFFAOYSA-N 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 2
- 239000000292 calcium oxide Substances 0.000 description 2
- 235000012255 calcium oxide Nutrition 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000009328 Perro Species 0.000 description 1
- 241000282898 Sus scrofa Species 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 230000031018 biological processes and functions Effects 0.000 description 1
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- -1 for NO 3 Inorganic materials 0.000 description 1
- 239000008103 glucose Substances 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000004130 lipolysis Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000001546 nitrifying effect Effects 0.000 description 1
- 238000004091 panning Methods 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- HUAUNKAZQWMVFY-UHFFFAOYSA-M sodium;oxocalcium;hydroxide Chemical compound [OH-].[Na+].[Ca]=O HUAUNKAZQWMVFY-UHFFFAOYSA-M 0.000 description 1
- GOLXNESZZPUPJE-UHFFFAOYSA-N spiromesifen Chemical compound CC1=CC(C)=CC(C)=C1C(C(O1)=O)=C(OC(=O)CC(C)(C)C)C11CCCC1 GOLXNESZZPUPJE-UHFFFAOYSA-N 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
- C02F1/5245—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents using basic salts, e.g. of aluminium and iron
-
- 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
- C02F11/02—Biological treatment
- C02F11/04—Anaerobic treatment; Production of methane by such processes
-
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2866—Particular arrangements for anaerobic reactors
-
- 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
- C02F3/30—Aerobic and anaerobic processes
- C02F3/302—Nitrification and denitrification treatment
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F17/00—Preparation of fertilisers characterised by biological or biochemical treatment steps, e.g. composting or fermentation
- C05F17/50—Treatments combining two or more different biological or biochemical treatments, e.g. anaerobic and aerobic treatment or vermicomposting and aerobic treatment
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/04—Bioreactors or fermenters specially adapted for specific uses for producing gas, e.g. biogas
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/36—Means for collection or storage of gas; Gas holders
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/58—Reaction vessels connected in series or in parallel
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M29/00—Means for introduction, extraction or recirculation of materials, e.g. pumps
- C12M29/18—External loop; Means for reintroduction of fermented biomass or liquid percolate
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M47/00—Means for after-treatment of the produced biomass or of the fermentation or metabolic products, e.g. storage of biomass
- C12M47/02—Separating microorganisms from the culture medium; Concentration of biomass
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/20—Capture or disposal of greenhouse gases of methane
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
- Y02P20/145—Feedstock the feedstock being materials of biological origin
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Biochemistry (AREA)
- Genetics & Genomics (AREA)
- General Health & Medical Sciences (AREA)
- Sustainable Development (AREA)
- Biomedical Technology (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- General Chemical & Material Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
There are provided an apparatus and method for the treatment of food waste. Particularly, the present invention relates to an apparatus and method for the treatment of food waste, which are characterized by degrading organic materials of food waste under anaerobic and aerobic conditions, separating the treated food waste into a precipitate and a supernatant, and chemically treating the supernatant, wherein the denitrification of nitrate nitrogen(NOx -N) is conducted twice before and after the anaerobic degradation. The apparatus and method of the present invention can convert food waste into a sludge with reduced weight and an effluent satisfying water quality suitable for discharging, generate methane gas that can be used as an energy source and maximize the denitrification efficiency of nitrate nitrogen.
Description
Technical field
The present invention relates to handle the apparatus and method of food refuse, particularly, the apparatus and method that relate to following processing food refuse: make organic substance anaerobic digestion and aerobic decomposition in the food refuse, be separated into after precipitation sludge and the supernatant, supernatant carries out chemical treatment, at this moment, the denitration reaction of nitrate nitrogen (NOx-N) takes place before aerobic decomposition and in the operation after the aerobic decomposition.
Background technology
Along with the surge of whole world population, the generation of domestic refuse, especially food refuse, with 2003 years be benchmark, be one day 11398 tons, account for total domestic refuse 50737 tons/day of generations about 22.5%.
In Korea S, before generation nineteen sixty before industrialization begins, food refuse is to recycle as the method for the feeds of domestic animals such as dog, pig, chicken etc.But the population concentration and the productivity ratio that cause along with industrialization improve, and consequently, the discharge rate of rubbish increases with geometric progression, and thus, such recirculation chain is cut off, and the processing of food refuse occurs as a new social concern.
Up to now, the processing method of food refuse mainly adopts landfill or incinerating method to handle.But the moisture of food refuse is 75～85%, and is very high, therefore, can cause imperfect combustion when burning disposal, and caloric value is low, so, there is the problem of having to use auxiliary fuel.In addition, during landfill disposal, exist to cause owing to producing leachate to cause environmental pollution problems such as phreatic pollution and stench, the present situation of Korea S is to forbid the direct landfill of rubbish from legislation in 2005.
To this, designed the various policy replacement schemes that are used for food refuse decrement and recirculation, and developed multiple food preparation technology, but do not obtained gratifying result so far.
Summary of the invention
The problem that invention will solve
The objective of the invention is to, a kind of apparatus and method of handling food refuse are provided, wherein, food refuse is converted to the sludge of minimizing and satisfies the water outlet that is fit to discharging water quality, and in this process, obtain can be used as the methane gas that energy uses, can make the denitration efficiency maximization of nitrate nitrogen (NOx-N).
The method of dealing with problems
In order to achieve the above object, in the present invention, provide a kind of food-trash treatment method, this method comprises:
(i) make the step that food refuse is pulverized and interpolation moisture carries out pre-treatment;
The step that (ii) makes the organic substance anaerobic digestion in the food refuse that has carried out above-mentioned pre-treatment and collect the methane gas that produces;
(iii) will concentrate and the step of dehydration through above-mentioned steps object being treated (ii);
(iv) will be through the organic substance in the above-mentioned steps object being treated (iii) as carbon source, make step (vi) and step (vii) flow into the step of nitrate nitrogen denitration contained in the sludge of feed-line;
(v) use the aerobic microorganism and the oxygen that flow into to make the organic substance in the process above-mentioned steps object being treated (iv) carry out aerobic step of decomposition;
(, make through the above-mentioned steps (step of contained nitrate nitrogen denitration in the object being treated v) vi) to be provided to strand organic acid in the inflow line as carbon source;
(vii) will (object being treated vi) be separated into the step of precipitation sludge and supernatant through above-mentioned steps, and with above-mentioned steps (the precipitation sludge that separates is vii) transferred in the feed-line, supernatant is carried out chemical treatment, remove the step of biology hardly-degradable substance.
In addition, a kind of device for processing food refuse is provided, this device comprises: the organic substance in the food refuse is carried out anaerobic digestion and produces the anaerobic digestive shelf of methane gas and the aeration tank that the organic substance in the food refuse is carried out aerobic decomposition, and, have respectively before and after the aeration tank: in the sludge that will flow into by feed-line the anaerobic groove of contained nitrate nitrogen (NOx-N) denitration and will object being treated by aeration tank in the denitration groove of contained NOx-N denitration, wherein, above-mentioned denitration groove is connected with inflow strand organic acid inflow line.
Fig. 1 illustrates an example of device for processing food refuse of the present invention.According to Fig. 1, this device comprises:
Make the organic substance anaerobic digestion in the food refuse and produce methane gas anaerobic digestive shelf (2),
Object being treated is concentrated and the thickener (3) of dehydration,
The anaerobic groove (4) of contained nitrate nitrogen denitration in the sludge that will flow into by feed-line,
Make the aerobic decomposition of organic substance in the object being treated aeration tank (6),
Make NOx-N denitration contained in the object being treated denitration groove (7),
With object being treated be separated into precipitation sludge and supernatant stillpot (8),
Supernatant is carried out chemical treatment, remove the biology hardly-degradable substance chemical treating tank (9),
Make the activation of aerobic microorganism microbial activity groove (5),
Be collected in the methane gas that produces in the anaerobic digestive shelf gas collector (10),
The feed-line (16 and 17) of conveying nitrate nitrogen,
Microbial activity groove feed-line (18),
With the strand organic acid flow into the denitration groove inflow line (21) and
Discharge the useless sludge pipeline (19) of sludge.
The invention effect
As mentioned above, if handle food refuse by apparatus and method of the present invention, the sludge and satisfied being fit to that not only are converted to minimizing, discharge the water outlet of water quality and obtain methane gas, and can make the denitration efficiency maximization of nitrate nitrogen (NOx-N).
Description of drawings
Fig. 1 adopts the pie graph that is used for the device for processing food refuse of biogas production and sewage purification of the present invention.
Symbol description
1: be used to produce biogas and the device for processing food refuse of purifying waste water
2: the anaerobic digestive shelf
3: thickener
4: the anaerobic groove
5: the microbial activity groove
6: aeration tank
7: the denitration groove
8: stillpot
9: chemical treating tank,
10: gas collector
11: thermoregulator
12: the anaerobic blender
13: anaerobic groove blender
14: the aeration tank blender
15: denitration groove blender
16: denitration groove feed-line
17: the stillpot feed-line
18: microbial activity groove feed-line
19: useless sludge pipeline
20: the thickener sludge cake that gives up
21: the denitration concentrated flow is gone into pipeline
22: active microorganism aeration tank inflow line
The specific embodiment
Below, the present invention is described in more detail.
If it is describe the processing method of food refuse step by step in detail, then as follows.
Step (i) is that food refuse is pulverized, and adds the operation that water carries out pre-treatment.
The main component of food refuse is organic substances such as carbohydrate, fat, protein, and its constituent is big and complicated, and it is long-time that hydrolysis needs, therefore, with mechanical means the constituent pulverizing is attenuated, and suitably add moisture, transfer to subsequent handling with form preparation smoothly.
Step (ii) is to make through the organic substance in the food refuse of above-mentioned pre-treatment step to carry out anaerobic digestion, and collects the operation of the methane gas that produces.
So-called anaerobic digestion, be that anerobe is that nutrient source carries out the operation that methane is produced in metabolism with the organic substance in the food refuse, comprise that carbohydrate, protein, lipolysis are alcohol or strand organic acid acid fermentation step and the effect generation methane (CH that is formed microorganism (methane formingmicrobes) by the organic acid that decomposes by methane
4) the methane fermentation step.Above-mentioned operation takes place in the anaerobic digestive shelf (2) of device for processing food refuse of the present invention, and the anaerobic digestive shelf comprises: collect the gas collector (10) of the methane gas that produces, the thermoregulator (11) of regulating temperature in the digestive shelf and the blender (12) that is used to stir.
If specifically describe the anaerobic digestion process of organic substance, carbohydrate breakdown is a glucose, and then resolves into methane and carbon dioxide.
C
6H
12O
6→3CO
2+CH
4
Protein and fat play in the anaerobic digestion process induces alkalization and suppresses the effect that the pH in the anaerobic digestive shelf reduces, and the decomposition reaction of protein and fat is as follows respectively.
HOOCCH
2CH
2CHNH
2COONa+3H
2O→CO
2+2CH
4+NH
4HCO
3+NaHCO
3
CH
3CH
2CH
2COONa+2H
2O→CO
2+2CH
4+NaHCO
3
After the methane gas that the anaerobic digestion step produces is collected, can be used as uses such as fuel.
In the present invention, the amount of putting into the food refuse in the anaerobic digestive shelf is adjusted at 80 o'clock in the number time of staying of science (Hydraulic Retention Time:HRT) with the anaerobic digestive shelf, about preferred one day about 625kg/L.
In addition, anaerobic digestive shelf of the present invention can carry out normal temperature digestion, low-temperature digestion, mesophilic digestion and thermophilic digestion fully, uses the heater coil (heating coil) that connects thermoregulator (11) to heat.Temperature in the anaerobic digestive shelf preferably causes 30～40 ℃ of mesophilic digestion or causes 50～60 ℃ of thermophilic digestion, the most preferred about 35 ℃ mesophilic digestion or about 55 ℃ thermophilic digestion.In addition, fully mix, use blender (12) fully to mix in order to make the food refuse and the anerobe that flow in the anaerobic digestive shelf.
Step (iii) is the operation that makes and dehydration concentrated through the object being treated of above-mentioned anaerobic digestion step.
Concentrate and dehydration procedure is the operation that is used to reduce the higher suspension material concentration of object being treated, in the thickener (3) of device for processing food refuse of the present invention, carry out.In the former water of food refuse, contain a large amount of suspended materials, also very high through the concentration of suspended material in the water outlet of anaerobic digestive shelf.When the high object being treated of suspended material concentration flows in the aeration tank (6), be difficult to keep the concentration of the mixed liquor suspended solid, MLSS thing (Mixed Liquor Solids:MLSS) of aeration tank.Therefore,, make the sludge cake and remove, thus, reduce the aeration tank rate of load condensate of suspended material, keep the concentration of MLSS by object being treated being concentrated and dewatering.
As method for concentration, can enumerate, gravity concentrates, centrifugally concentrate, floating separation concentration method etc.Dewatering can be enumerated air dry, mechanical dehydration etc., and mechanical dehydration comprises vacuum dehydration, pressurizing and dehydrating, centrifugal dehydration, band pressure (belt press), screw press (screw press) etc.Particularly, in the present invention, concentrate, dewater with band pressure mode by the method that adopts gravity.
Step (iv) be with through above-mentioned concentrate and the object being treated of dehydration in organic substance as carbon source, make the operation of NOx-N denitration contained in the sludge that flows into feed-line.
This step is, in denitration groove (7), make and be transported to NOx-N contained in the sludge of feed-line 16 and stillpot (8) by feed-line 17 and under oxygen free condition, carry out denitration, and with through concentrating and object being treated that dehydration flows in contained organic matter as carbon source, phosphorus in this process (phosphorus) dissolving is separated out.When almost not having dissolved oxygen, for NO
3, NO
2Such form obtain energy in conjunction with oxygen as electron acceptor, can in the following manner NOx-N be reduced to nitrogen (N by denitration microorganism (denitrifier)
2) be discharged in the atmosphere.
NO
3→NO
2→NO→N
2O→N
2
Above-mentioned denitration operation is carried out in the anaerobic groove (4) of device for processing food refuse of the present invention, for smooth mixed denitrification bacterium, carbon source and NOx-N, uses anaerobic groove blender (13).
In denitration reaction (denitrification), owing to contain the organic acid that uses as electron donor (electron donor) in a large number in the object being treated through anaerobic digestive shelf (2), therefore, even without the supply of external carbon source, also effective denitration reaction can take place.
Step (v) is to use the aerobic microorganism and the operation of oxygen to carrying out aerobic decomposition through the organic substance in the object being treated of above-mentioned steps of inflow.
So-called aerobic decomposition is meant the organic substance in the aerobic microorganism panning food refuse, makes the necessary nutrient source of existence, finally is decomposed into the operation of carbon dioxide, ammonia and water etc., and ammonia combines with oxygen through nitrite nitrogen (NO
2 -) be oxidized to nitre attitude (NO
3 -) nitrogen.Aerobic decomposition is like this carried out in the aeration tank (6) of device for processing food refuse of the present invention, and the concentration of the MLSS in the aeration tank preferably maintains 9000～12000mg/L.
Aeration tank is divided into a plurality of isolation wards by a plurality of diffusion barriers, keeps the amount that different step produces different dissolved oxygens (Dissolved Oxyegn:DO) by isolation ward.Particularly, aeration tank is divided into 3 sections, in the 1st section of aeration tank, flows into extraneous air, keeps high DO concentration, and the organic matter in the waste water is effectively decomposed, by the nitrification action of microorganisms with ammonium-nitrogen through nitrite nitrogen (NO
2 -) be oxidized to nitrate nitrogen (NO
3 -).In the 3rd section of aeration tank, interrupt oxygen supply, keep low DO concentration, use the aeration tank blender (14) that is arranged on aeration tank top to stir, prepare denitration reaction as subsequent handling.Preferably, the 1st section of aeration tank maintains 0.5～1.0mg/L with DO, and the 2nd section of aeration tank maintains 0.3～0.5mg/L with DO, and the 3rd section of aeration tank maintains DO below the 0.1mg/L.
The microorganism that participates in aerobic decomposition is activated under the aerobic atmosphere of microbial activity groove (5), and transfers in the aeration tank by the aeration tank inflow line (22) of active microorganism.Making extraneous air flow into the inside of microbial activity groove (40), thus, is the aerobic atmosphere with the inner sustain of microbial activity groove (40), optionally only activates aerobic microorganism.Particularly, use Selective Separation to cultivate and inoculated the micropopulation of edaphon.In addition, the microbial activity groove continues to supply with sludges by feed-line 18, and carries out the activation of microorganism contained in the sludge of dissolving is separated out from micropopulation microorganism and conveying continuously.
Step (vi) is to be provided to strand organic acid in the inflow line as carbon source, will to have passed through the operation that NOx-N contained in the object being treated of above-mentioned aerobic decomposition step carries out denitration.
Under anaerobic state, owing to NOx-N uses as the oxygen source of denitration microorganism, therefore NOx-N takes place is reduced to N
2The denitration reaction of gas, above-mentioned operation is carried out in the denitration groove (7) of device for processing food refuse of the present invention.At this moment, go into pipeline (21) by the denitration concentrated flow strand organic acid is flowed into, and be converted into N at NOx-N
2During the reduction reaction of gas, use as the carbon supply source, thereby denitration efficiency is maximized.
Step (vii) is that the object being treated that will pass through above-mentioned denitration treatment step is separated into the operation that precipitates sludge and supernatant.
In above-mentioned operation, the food refuse object being treated is precipitation sludge and supernatant by the gravity Separation of Solid and Liquid.Above-mentioned operation is carried out in the stillpot (8) of device for processing food refuse of the present invention, the supernatant that separates is transferred in the subsequent processing in order to carry out chemical treatment, the precipitation sludge is transferred in the anaerobic groove by feed-line 17, make contained NOx-N denitration in the precipitation sludge, a part is by sludge pipeline 19 processings that go out of use, and a part is transferred to by feed-line 18 microorganism is activated.
Step (viii) is that the precipitation sludge that separates in above-mentioned steps is transferred in the feed-line, supernatant is carried out chemical treatment, remove the operation of biology hardly-degradable substance.
Chemical treatment is to add flocculating agent to remove the hardly-degradable substance that biology decomposes difficulty, for example, phosphorus, suspension material, colourity evocating substance (Se Du Lure Development Wu Quality) etc. operation.Its chemical treating tank at device for processing food refuse carries out in (9), can use the flocculating agent of Al system, the flocculating agent of Fe system etc., but be not limited to this.
As above-mentioned Al system flocculating agent, can enumerate Alum (Al
2SO
4) 18H
2O, PAC (PolyAluminum Chloride) etc., can enumerate FeSO as Fe system flocculating agent
47H
2O, FeCl
3, Fe
2(SO
4)
3Deng.Chemical treatment is carried out in the influence that the kind of consideration flocculating agent, the injection rate of flocculating agent, pH, turbidity etc. bring.In addition, as cohesion assistant (coagulant aid), can use calcium hydroxide (Ca (OH)
2), quick lime (CaO), caustic soda (NaOH), soda lime (Na
2CO
3) wait such pH to adjust such turbidity doses such as agent and bentonite, flying dust, active silicic acid, cement dust.
Like this, the present invention makes aerobic decomposition and anaerobic digestion operation connect the processing food refuse, and above-mentioned all process steps is understood the treatment effeciency that increases food refuse in order step by step.According to method of the present invention, food refuse is by anaerobic and the compound decomposition of aerobic, and is converted to the water outlet of sludge and suitable discharge water water quality, in this process, produces and can be used as the methane gas that the energy uses.The sludge that produces adopts methods such as landfill, burning finally to handle, and perhaps passes through regenerative process as uses such as compost or construction materials.
In addition, food-trash treatment method of the present invention can be removed the nitrogen that works as the pollution sources that make secondary nutrient ladens such as river and lake expeditiously.
In the present invention, nitrogen decomposes conversion ammonification form by biology, and the ammonia of conversion is converted to NOx-N by the nitrification operation, and NOx-N is removed by the series of processes that is reduced to nitrogen by the denitration operation.
At this moment, feature of the present invention is owing in the operation before and after aerobic decomposition process, carry out denitration reaction 2 times, to make denitration efficiency maximize.If specifically describe, in the denitrification step before aerobic decomposition, contained NOx-N is reduced into nitrogen and removes in the sludge that will provide by feed-line, in the denitrification step after aerobic decomposition, when the denitration reaction of NOx-N, to offer inflow line as the organic acid that carbon source is used, make the denitration efficiency maximization.
Below, by following examples the present invention is described more specifically.But the present invention is not subjected to the restriction of embodiment.
Embodiment
Inner in order to observe easily, the reactive tank that uses in the device for processing food refuse adopts the acrylic acid manufacturing, and the thermal recovery that adds of anaerobic reactive tank has connected and has the heater coil (heating coil) of adjustment machine that the error displacement is 1 ℃ a correctness.
Each element and the specification of the reactor in the treating apparatus of food refuse are shown in the following table 1.In the treating apparatus of food refuse, feed-line has shifting pump, and aeration tank and microbial activity groove have air blast.
Table 1
| Reactor and machine | Specification | Remarks |
| The anaerobic digestive shelf | 50L(φ＝35cm，H＝65cm) | Cylindrical shape, be used for the anaerobic sludge |
| Thickener | 3L(φ＝14cm，H＝30cm) | Conical |
| The anaerobic groove | 5L(φ＝16cm，H＝35cm) | Cylindrical shape |
| Aeration tank | 10L(L＝33cm，B＝17cm，h＝27cm) | Spherical, be used for sewage grit |
| The denitration groove | 3L(φ＝14cm，H＝30cm) | Cylindrical shape |
| Stillpot | 4.0(φ＝23cm，H＝35cm) | Conical, maintenance hopper tilts 60 ° |
| The microbial activity groove | 0.2(φ＝0.7cm，H＝18cm) | Cylindrical shape |
| PH, temperature measuring machine | Orione 250A | PH, temperature measuring |
| Shifting pump | The Master-flex pump | 2 |
| Blender | Panasonic M6GA30M | 60rpm |
| Air blast | コリ アカツキSPP-200GJ-H | The 40L/ minute volume |
The food refuse that uses in the experiment is a food refuse of collecting dining room, the inside discharge of using Korean Institute of Science and Technology, and is after with blender the food refuse pulverizing being attenuated, stored refrigerated so that use.
The HRT of each reactive tank is adjusted to: the anaerobic digestive shelf is 80 days, and thickener is 1 day, and the anaerobic groove is 1 day, and the microbial activity groove is 2 days, and aeration tank is 20 days, and the denitration groove is 15 hours, and stillpot is 8 hours.
The concentration of aeration tank MLSS maintains 10000mg/L, for keeping the MLSS of aeration tank, a certain amount of residue sludge of waste gas in stillpot, object being treated is designed to move by mode under the gravity spontaneous current, for guaranteeing correct amount, the input of test material and the constant displacement pump of carrying employing to have timer are regulated automatically.
During chemical treatment, adopt the Fe salt (FeCl of the concentration processing of 100mgFe/L as flocculating agent
3).
Use the treating apparatus of food refuse of the present invention to handle food refuse, measure COD (COD:Chemical Oxygen Demand), biology oxygen demand (BOD:Biological Oxygen Demand), suspension gross mass (TSS:Total Suspended Solids), TKN (Total Kjeldahl Nitrogen), the total phosphorus content (T-P) of the water outlet that each step obtains, be shown in the following table 2, result of experiment is the mean value at run duration.
Table 2
| Distinguish | CODcr (mg/L) | BOD (mg/L) | TSS (mg/L) | VSS (mg/L) | TKN/NH 3 (mg/L) | NOx-N (mg/L) | T-P (mg/L) |
| Former water | 110000 | 57000 | 89800 | 84000 | 4000/53 | 0 | 480 |
| The water outlet of anaerobic nitrifying groove | 21000 | 7800 | 13000 | 11000 | 3800/2500 | 0 | 330 |
| The biological processes water outlet | 342 | 57 | 68 | 56 | 74/61 | 1.0 | 73 |
| The chemical treatment water outlet | 52 | 18 | 17 | 13 | 45/38 | 1.0 | 5 |
According to above-mentioned table 2, the average proterties of the former water of food refuse of pulverizing is, the concentration of TSS/VSS is 89800/84000mg/L, and the concentration of COD is 110000mg/L, and the concentration of BOD is 57000mg/L, and the concentration of T-P is 480mg/L.In addition, the concentration of TKN is 4000mg/L, NH
4Concentration be 53mg/L, in TKN, NH
4Account for about 1.3%.
The water outlet that obtains from the anaerobic digestive shelf, ammonia concentration is higher than quite with former water, and this is because organic property nitrogen ammonification in the anaerobic digestive shelf (ammonification).Can confirm that the high organic property nitrogen in the former water is converted to organic property nitrogen in through the anaerobic digestive shelf.
The water quality of the water outlet that obtains from the stillpot of biologic treatment process is, the concentration of CODcr is 342mg/L, the concentration of BOD is 57mg/L, the concentration of TKN is 74mg/L, and the concentration of T-P is 73mg/L, effluent quality after the chemical treatment is, the concentration of CODcr is 52mg/L, the concentration of BOD is 18mg/L, and the concentration of TSS is 17mg/L, and the concentration of TKN is 45mg/L, and the concentration of TP is 5mg/L, can confirm that along with the carrying out of the treatment step of food refuse, water outlet can be improved to the water quality of the level that can discharge.
Claims (5)
1. device for processing food refuse, this device comprises: the organic substance in the food refuse carried out anaerobic digestion and produces the anaerobic digestion groove of methane gas and the aeration tank that the organic substance in the food refuse is carried out aerobic decomposition, and,
Have respectively before and after the aeration tank: in the sludge that will flow into by feed-line the anaerobic groove of contained nitrate nitrogen (NOx-N) denitration and will object being treated by aeration tank in the denitration groove of the nitrate nitrogen denitration that contains, wherein,
Above-mentioned denitration groove is connected with inflow strand organic acid inflow line.
2. the described device for processing food refuse of claim 1, this device comprises:
Make the organic substance anaerobic digestion in the food refuse and produce methane gas anaerobic digestion groove (2),
Object being treated is concentrated and the thickener (3) of dehydration,
The anaerobic groove (4) of contained nitrate nitrogen denitration in the sludge that will flow into by feed-line,
Make the aerobic decomposition of organic substance in the object being treated aeration tank (6),
Make nitrate nitrogen denitration contained in the object being treated denitration groove (7),
With object being treated be separated into precipitation sludge and supernatant stillpot (8),
Supernatant is carried out chemical treatment, remove the biology hardly-degradable substance chemical treating tank (9),
Make the activation of aerobic microorganism microbial activity groove (5),
Be collected in the methane gas that produces in the anaerobic digestive shelf gas collector (10),
The feed-line (16 and 17) of conveying nitrate nitrogen,
Microbial activity groove feed-line (18),
With the strand organic acid flow into the denitration groove inflow line (21),
Discharge the useless sludge pipeline (19) of sludge.
3. food-trash treatment method, this method comprises:
(i) make the step that food refuse is pulverized and interpolation moisture carries out pre-treatment;
The step that (ii) makes the organic substance anaerobic digestion in the food refuse that in above-mentioned steps (i), has carried out pre-treatment and collect the methane gas that produces;
(iii) will concentrate and the step of dehydration through above-mentioned steps object being treated (ii);
(iv) will be through the organic substance in the above-mentioned steps object being treated (iii) as carbon source, make step (vi) and step (vii) flow into nitrate nitrogen denitration contained in the sludge of feed-line.
(v) utilize the aerobic microorganism and the oxygen that flow into to make the organic substance in the process above-mentioned steps object being treated (iv) carry out aerobic step of decomposition;
(, make through the above-mentioned steps (step of contained nitrate nitrogen denitration in the object being treated v) vi) to be provided to strand organic acid in the inflow line as carbon source;
(vii) will (object being treated vi) be separated into the step of precipitation sludge and supernatant through above-mentioned steps;
(viii) (the precipitation sludge that separates is vii) transferred in the feed-line, and supernatant is carried out chemical treatment, removes the step of biological hardly-degradable substance with above-mentioned steps.
4. the described food-trash treatment method of claim 3 wherein, (viii), is added aluminium (Al) and is or iron (Fe) is that flocculating agent carries out chemical treatment in step.
5. the described food-trash treatment method of claim 3 is wherein used the device of claim 1.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR20060047980A KR100670081B1 (en) | 2006-05-29 | 2006-05-29 | Apparatus and method for treatment of food waste |
| KR47980/06 | 2006-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101081398A true CN101081398A (en) | 2007-12-05 |
Family
ID=38013930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101399160A Pending CN101081398A (en) | 2006-05-29 | 2006-09-26 | Apparatus and method for treatment of food waste |
Country Status (3)
| Country | Link |
|---|---|
| KR (1) | KR100670081B1 (en) |
| CN (1) | CN101081398A (en) |
| WO (1) | WO2007139264A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531286A (en) * | 2011-12-31 | 2012-07-04 | 浙江爱迪曼水科技有限公司 | System for ecologically treating aquaculture wastewater |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101000300B1 (en) * | 2008-07-17 | 2010-12-13 | 한국과학기술연구원 | Method for the composting and treatment of food waste using wood chips and apparatus using the same |
| WO2011044145A1 (en) | 2009-10-05 | 2011-04-14 | Dairy Manufacturers, Inc. | Composition and method for delivery of substances in a dry mode |
| CA2813741C (en) | 2010-10-05 | 2019-12-17 | Dairy Manufacturers, Inc. | Composition and method for delivery of substances in a dry mode having a surface layer |
| KR101195844B1 (en) | 2010-11-23 | 2012-10-30 | 새한환경기술(주) | Bio-Gas facilities |
| CA2830086C (en) | 2011-04-04 | 2020-06-23 | Dairy Manufacturers, Inc. | Composition and method for delivery of living cells in a dry mode having a surface layer |
| US8329455B2 (en) | 2011-07-08 | 2012-12-11 | Aikan North America, Inc. | Systems and methods for digestion of solid waste |
| LT2766489T (en) * | 2011-10-13 | 2024-04-25 | Tenfold Technologies, LLC | Method for production of microbial output |
| KR101375343B1 (en) | 2012-04-06 | 2014-03-18 | 김응일 | Waste for energy production system |
| CN102921707B (en) * | 2012-11-19 | 2015-02-18 | 崔勇 | Treatment device for zero emission resource utilization of wastes in modern agriculture industrial park |
| CN103865790B (en) * | 2014-03-07 | 2016-02-10 | 河北科技大学 | The device of a kind of terramycin strain slag harmlessness process and technique |
| CN104148370B (en) * | 2014-07-25 | 2016-04-13 | 李英军 | A kind of combination unit and process changing food waste method processing changing food waste |
| KR101564297B1 (en) * | 2014-12-15 | 2015-11-03 | 주식회사 한화건설 | The advanced wastewater treatment system using membrane bioreactor combined with alternative operating anaerobic reactor and two stage coagulation |
| US11440853B2 (en) | 2017-02-28 | 2022-09-13 | Drylet, Inc. | Systems, methods, and apparatus for increased wastewater effluent and biosolids quality |
| CN111774415B (en) * | 2020-08-04 | 2023-08-18 | 第一环保（深圳）股份有限公司 | Cooperative treatment method and treatment system based on sewage sludge, garbage and manure |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW474949B (en) * | 1997-10-03 | 2002-02-01 | Mitsui Chemicals Inc | A fluidized bed polymerization apparatus and an olefin polymerization process |
| KR100271942B1 (en) * | 1998-09-26 | 2000-11-15 | 박호군 | Method for treating high density waste water and apparatus therefore using soil microbe with do controlling aeration tank |
| KR100340098B1 (en) * | 2000-05-08 | 2002-06-10 | 김동우 | An elevated disposal process for the leakage water of reclaimed land |
| KR200245304Y1 (en) | 2001-06-14 | 2001-10-17 | 윤성용 | Apparatus for Garbage processing |
| KR20020093736A (en) * | 2002-11-22 | 2002-12-16 | 주식회사 풍전 | Processing of organic dust system |
| KR100537689B1 (en) * | 2004-04-22 | 2005-12-20 | 다불산업주식회사 | Biological disposal apparatus of foul water and sewage |
-
2006
- 2006-05-29 KR KR20060047980A patent/KR100670081B1/en active IP Right Grant
- 2006-09-26 CN CNA2006101399160A patent/CN101081398A/en active Pending
- 2006-12-07 WO PCT/KR2006/005294 patent/WO2007139264A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531286A (en) * | 2011-12-31 | 2012-07-04 | 浙江爱迪曼水科技有限公司 | System for ecologically treating aquaculture wastewater |
| CN102531286B (en) * | 2011-12-31 | 2013-09-25 | 浙江爱迪曼水科技有限公司 | System for ecologically treating aquaculture wastewater |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2007139264A1 (en) | 2007-12-06 |
| KR100670081B1 (en) | 2007-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101081398A (en) | Apparatus and method for treatment of food waste | |
| CN104961306B (en) | A kind of processing method of vaccary breeding wastewater | |
| CN100371270C (en) | Combined treatment process for manioc producing effluent | |
| CN109923075B (en) | Method and apparatus for recovering phosphorus in wastewater treatment plants using advanced sludge treatment | |
| KR20190003816A (en) | Systems and Methods for Reducing Sludges produced by Wastewater Treatment Facilities | |
| CN103922538B (en) | Livestock and poultry breeding wastewater treatment method | |
| CN110395851B (en) | High-altitude town sewage treatment method based on nitrogen and phosphorus capture and completely autotrophic nitrogen removal | |
| CN103402926A (en) | Methods and systems for treating wastewater | |
| CN110255728A (en) | A kind of a new combined process method and system of landfill leachate treatment | |
| CN102010104A (en) | Method for treating riboflavin fermentation waste water | |
| CN102884011A (en) | Improved digestion of biosolids in wastewater | |
| Zhao et al. | Simultaneous removal of ammonium-nitrogen and sulphate from wastewaters with an anaerobic attached-growth bioreactor | |
| Du et al. | Material mass balance and elemental flow analysis in a submerged anaerobic membrane bioreactor for municipal wastewater treatment towards low-carbon operation and resource recovery | |
| Chen et al. | Advancements in swine wastewater treatment: Removal mechanisms, influential factors, and optimization strategies | |
| JP3570888B2 (en) | Waste treatment method | |
| CN105366889B (en) | A kind of town sewage high standard denitrification dephosphorization system without additional carbon | |
| JP5143358B2 (en) | Organic waste treatment method and apparatus | |
| CN107151082B (en) | Zero-discharge treatment system and method for DMF (dimethyl formamide) -containing wastewater | |
| CN107055963B (en) | Efficient and low-consumption advanced treatment device and treatment method for landfill leachate | |
| CN212451088U (en) | Be applied to integrated processing apparatus who breeds waste water treatment | |
| Deng et al. | Energy-neutral municipal wastewater treatment based on partial denitrification-anammox driven by side-stream sulphide | |
| CN114409188A (en) | Anaerobic fermentation biogas slurry treatment method using kitchen waste hydrolysate as carbon source | |
| JPH10118687A (en) | Treatment method of organic wastewater | |
| CN204198490U (en) | A kind of assembly type membrane bioreactor | |
| CN107399891A (en) | A kind of Animal fecal pollution recycling treatment process and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20071205 |