KR200199315Y1 - Annexation disposal system of food waste and sewage - Google Patents
Annexation disposal system of food waste and sewage Download PDFInfo
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- KR200199315Y1 KR200199315Y1 KR2020000010957U KR20000010957U KR200199315Y1 KR 200199315 Y1 KR200199315 Y1 KR 200199315Y1 KR 2020000010957 U KR2020000010957 U KR 2020000010957U KR 20000010957 U KR20000010957 U KR 20000010957U KR 200199315 Y1 KR200199315 Y1 KR 200199315Y1
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- food waste
- sewage sludge
- tank
- organic
- hydrolysis
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- 239000010794 food waste Substances 0.000 title claims abstract description 37
- 239000010865 sewage Substances 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 54
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000002253 acid Substances 0.000 claims abstract description 27
- 230000007062 hydrolysis Effects 0.000 claims abstract description 27
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 27
- 239000010801 sewage sludge Substances 0.000 claims abstract description 25
- 238000000855 fermentation Methods 0.000 claims abstract description 23
- 230000004151 fermentation Effects 0.000 claims abstract description 23
- 239000011368 organic material Substances 0.000 claims abstract description 22
- 238000012546 transfer Methods 0.000 claims abstract description 17
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000013305 food Nutrition 0.000 claims abstract description 14
- 150000007524 organic acids Chemical class 0.000 claims abstract description 14
- 230000029087 digestion Effects 0.000 claims abstract description 13
- 230000005484 gravity Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 241000894006 Bacteria Species 0.000 claims abstract description 9
- 239000005416 organic matter Substances 0.000 claims abstract description 9
- 239000003513 alkali Substances 0.000 claims abstract description 8
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 7
- 235000005985 organic acids Nutrition 0.000 claims abstract description 6
- 239000000356 contaminant Substances 0.000 claims abstract description 4
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 239000013049 sediment Substances 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 18
- 230000000813 microbial effect Effects 0.000 abstract description 4
- 230000008676 import Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 18
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 244000005700 microbiome Species 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000003756 stirring Methods 0.000 description 3
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 3
- 229920002554 vinyl polymer Polymers 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 2
- 238000009264 composting Methods 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FERIUCNNQQJTOY-UHFFFAOYSA-M Butyrate Chemical compound CCCC([O-])=O FERIUCNNQQJTOY-UHFFFAOYSA-M 0.000 description 1
- FERIUCNNQQJTOY-UHFFFAOYSA-N Butyric acid Natural products CCCC(O)=O FERIUCNNQQJTOY-UHFFFAOYSA-N 0.000 description 1
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 239000013067 intermediate product Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000007039 two-step reaction Methods 0.000 description 1
Classifications
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- 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
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/02—Apparatus for the manufacture
-
- 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
- C12M1/00—Apparatus for enzymology or microbiology
- C12M1/02—Apparatus for enzymology or microbiology with agitation means; with heat exchange means
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Biotechnology (AREA)
- Biomedical Technology (AREA)
- Medicinal Chemistry (AREA)
- Microbiology (AREA)
- Sustainable Development (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- Processing Of Solid Wastes (AREA)
- Treatment Of Sludge (AREA)
Abstract
본 고안은 음식물쓰레기와 하수슬러지를 혐기소화하여 병합처리함으로써 미생물 반응과정 이송중에 기계적인 문제점을 최소화하고 유기물질을 균질화하여 반응조건을 일정하게 유지하는 등 효율적인 처리가 이루어지도록 한 음식물쓰레기와 하수슬러지의 병합처리 시스템에 관한 것이다.This design combines anaerobic digestion of food waste and sewage sludge to minimize mechanical problems during microbial reaction process transfer, homogenize organic materials, and maintain the reaction conditions to ensure efficient treatment such as food waste and sewage sludge. Relates to a merge processing system.
본 고안은 저장호퍼로 부터 음식물쓰레기를 이송컨베이어로 반입시켜 로터의 회전에 의해 분쇄하고 분쇄된 음식물은 하부 스크린을 거쳐 이송시키며 음식물 쓰레기내의 부유협잡물 및 침전 비중물을 가수된 상태에서 완전 분리,선별하는 선별분쇄기(10); 상기 선별분쇄기(10)에서 이송펌프에 의해 이송된 유기물중 미세 비중물을 유체의 원심력에 의해 최종적으로 선별 제거하는 사이클론(20); 상기 사이클론(20)에서 완전하게 선별된 유기물을 적절한 수분함량을 가질 수 있도록 농축시키는 농축기(30); 농축기(30)에서 분리된 유기물질을 일정량의 수산화나트륨을 공급해 주면서 강알칼리상태를 유지시켜 가수분해을 촉진시키는 가수분해조(40); 이미 가수분해된 유기물질을 미생물이 유기산으로 전환시키도록 하는 산발효조(50); 및 하수슬러지를 혼입시켜 그 하수슬러지와 이미 유기산으로 전환된 음식물쓰레기 대부분을 메탄발효균에 의해 메탄가스와 이산화탄소로 전환시키는 혐기소화조(60);를 포함하는 구성을 특징으로 한다.The present invention imports the food waste from the storage hopper into the transfer conveyor, crushes it by the rotation of the rotor, transfers the crushed food through the lower screen, and completely separates and sorts the floating contaminants and sediment specific gravity in the food waste in the hydrolyzed state. A sorting grinder 10 to be used; A cyclone (20) for finally separating and removing the fine specific gravity of the organic matter transported by the transfer pump in the sorting mill (10) by the centrifugal force of the fluid; A concentrator 30 for concentrating the organic material completely selected from the cyclone 20 to have an appropriate water content; A hydrolysis tank 40 for supplying a certain amount of sodium hydroxide to the organic material separated from the concentrator 30 to maintain a strong alkali state to promote hydrolysis; An acid fermentation tank 50 for converting the already hydrolyzed organic material into an organic acid; And an anaerobic digestion tank 60 incorporating sewage sludge and converting most of the sewage sludge and food waste already converted into organic acids into methane gas and carbon dioxide by methane fermentation bacteria.
Description
본 고안은 음식물쓰레기와 하수슬러지를 혐기소화하여 병합처리함으로써 미생물 반응과정 이송중에 기계적인 문제점을 최소화하고 유기물질을 균질화하여 반응조건을 일정하게 유지하는 등 효율적인 처리가 이루어지도록 한 음식물쓰레기와 하수슬러지의 병합처리 시스템에 관한 것이다.This design combines anaerobic digestion of food waste and sewage sludge to minimize mechanical problems during microbial reaction process transfer, homogenize organic materials, and maintain the reaction conditions to ensure efficient treatment such as food waste and sewage sludge. Relates to a merge processing system.
음식물쓰레기는 거의 대부분이 유기물질이므로 매립처분시 침출수와 지반의 안정화에 문제점을 안고 있다. 따라서 음식물쓰레기를 처리하기 위한 기존의 방법에는 크게 퇴비화, 사료화, 건조나 탈수를 통한 감량화 등으로 나눌수 있는데 상기 퇴비화하는 방안은 아직까지 수요자의 거부감이 있을 뿐만 아니라 상당기간 이 퇴비를 사용하였을 때 퇴비중의 염분이 토양에 미치는 효과가 검중되지 않은 추세이다.Since most food wastes are organic materials, they have problems in stabilizing leachate and ground at disposal. Therefore, the existing methods for treating food waste can be divided into composting, feed, drying, and dehydration. However, the composting method is not only rejected by consumers but also composted when the compost is used for a considerable period of time. The effect of salts on soils is not detected.
또한 사료화하는 방안은 사전에 분리작업을 철저히 하여야 하지만 최근에 음식물쓰레기로 만든 사료 역시 가축에게 좋은 먹이가 될 수 없음이 밝혀진바 있다.In addition, the method of feed should be thoroughly separated in advance, but recently, it has been found that feed made of food waste cannot be a good food for livestock.
또한 건조나 탈수는 감량화하는 방법이 될 수 있으나 분해가능한 유기물의 최종적인 처리방법이 아니다.In addition, drying or dehydration may be a method of reducing weight, but it is not a final treatment of degradable organic matter.
한편 하수슬러지의 일반적인 특성을 살펴보면 유기물 함량이 적어 혐기소화 후에도 유기물의 소화율이 그다지 높지 않음이 밝혀졌다. 따라서 음식물쓰레기와 하수슬러지를 비롯한 기존의 유기성 폐기물 처리방법에 대한 거부감이 없을 뿐만 아니라 경제적으로 처리할 수 있는 방법이 절실히 요구되고 있는 실정이다.On the other hand, the general characteristics of the sewage sludge showed that the organic matter content was not high even after anaerobic digestion due to the low content of organic matter. Therefore, there is an urgent need for a method that can be economically treated as well as not rejecting existing organic waste treatment methods such as food waste and sewage sludge.
본 고안은 상기와 같은 종래의 문제점을 해결하기 위하여 안출된 것으로서, 본 고안의 목적은 음식물쓰레기와 하수슬러지를 혐기소화하여 병합처리함으로써 미생물 반응과정 이송중에 기계적인 문제점을 최소화하고 유기물질을 균질화하여 반응조건을 일정하게 유지하는 등 효율적인 처리가 이루어지도록 한 음식물쓰레기와 하수슬러지의 병합처리 시스템을 제공하는 데 있다.The present invention was devised to solve the conventional problems as described above, the purpose of the present invention is to anaerobic digestion of food waste and sewage sludge to minimize the mechanical problems during the microbial reaction process transfer and to homogenize organic materials It is to provide a combined treatment system of food waste and sewage sludge which allows efficient treatment such as keeping the reaction conditions constant.
상기 목적을 달성하기 위한 본 고안의 음식물쓰레기와 하수슬러지의 병합처리 시스템은, 반입된 음식물쓰레기를 로터의 회전에 의해 분쇄하고 분쇄된 음식물은 하부 스크린을 거쳐 이송시키며 음식물 쓰레기내의 부유협잡물 및 침전 비중물을 가수된 상태에서 완전 분리,선별하는 선별분쇄기와; 상기 선별분쇄기에서 이송된 유기물중 미세 비중물을 유체의 원심력에 의해 최종적으로 선별 제거하는 사이클론과; 상기 사이클론에서 완전하게 선별된 유기물을 적절한 수분함량을 가질 수 있도록 농축시키는 농축기와; 농축기와 연결되어 분리된 유기물질을 일정량의 수산화나트륨을 공급해 주면서 강알칼리상태를 유지시켜 가수분해을 촉진시키는 가수분해조와; 이미 가수분해된 유기물질을 미생물이 유기산으로 전환시키도록 하는 산발효조와; 하수슬러지를 혼입시켜 그 하수슬러지와 이미 유기산으로 전환된 음식물쓰레기 대부분을 메탄발효균에 의해 메탄가스와 이산화탄소로 전화시키도록 하는 혐기소화조;를 포함하는 구성을 특징으로 한다.Combined treatment system of food waste and sewage sludge of the present invention for achieving the above object, the food waste is crushed by the rotation of the rotor, the pulverized food is passed through the lower screen and suspended impurities and sediment specific gravity in the food waste A sorting mill for completely separating and selecting water in a hydrolyzed state; A cyclone for finally separating and removing the fine specific gravity of the organic matter transferred from the sorting mill by the centrifugal force of the fluid; A concentrator for concentrating the organic material completely selected from the cyclone to have an appropriate water content; A hydrolysis tank connected to the concentrator and maintaining a strong alkali state while supplying a predetermined amount of sodium hydroxide to promote hydrolysis; An acid fermentation tank for converting the already hydrolyzed organic material into an organic acid; The anaerobic digestion tank to mix the sewage sludge with most of the food waste already converted into organic acids is converted to methane gas and carbon dioxide by the methane fermentation bacteria.
도 1은 본 고안의 구성이 연계된 전체적인 처리계통도,1 is an overall processing system associated with the configuration of the present invention,
도 2는 본 고안에 따른 시스템의 연계도이다.2 is a connection diagram of a system according to the present invention.
<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>
1: 저장호퍼 2: 이송컨베이어1: Storage hopper 2: Transfer conveyor
3,4,5,6: 이송펌프 10: 선별분쇄기3,4,5,6: transfer pump 10: sorting mill
20: 사이클론 30: 농축기20: cyclone 30: thickener
40: 가수분해조 40a,50a: 교반모터40: hydrolysis tank 40a, 50a: stirring motor
50: 산발효조 60: 혐기소화조50: acid fermentation tank 60: anaerobic digestion tank
70: 수산화나트륨 저장탱크70: sodium hydroxide storage tank
이하 첨부된 도면을 참고하여 본 고안의 실시예를 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
도 1은 본 고안의 구성이 연계된 전체적인 처리계통도,1 is an overall processing system associated with the configuration of the present invention,
도 2는 본 고안에 따른 시스템의 연계도이다.2 is a connection diagram of a system according to the present invention.
도시된 바와 같이 본 고안의 음식물쓰레기와 하수슬러지의 병합처리 시스템은, 선별분쇄기(10), 사이클론(20), 농축기(30), 가수분해조(40), 산발효조(50), 및 혐기소화조(60)로 대별된다.As shown, the combined food waste and sewage sludge treatment system of the present invention comprises a sorting mill 10, a cyclone 20, a concentrator 30, a hydrolysis tank 40, an acid fermentation tank 50, and an anaerobic digestion tank. It is roughly classified into (60).
선별분쇄기(10)는 저장호퍼(1)로 부터 음식물쓰레기를 이송컨베이어(2)로 반입시켜 로터의 회전에 의해 분쇄하고 분쇄된 음식물은 하부 스크린을 거쳐 이송시키며 음식물 쓰레기내의 부유협잡물 및 침전 비중물을 가수된 상태에서 완전 분리,선별한다.The sorting crusher 10 carries food waste from the storage hopper 1 to the conveying conveyor 2, pulverizes by rotation of the rotor, transfers the crushed food through the lower screen, and floats and sediments specific gravity in the food waste. Is separated completely and screened in the hydrolyzed state.
사이클론(20)은 상기 선별분쇄기(10)에서 이송펌프(3)에 의해 이송된 유기물중 미세 비중물을 유체의 원심력에 의해 최종적으로 선별 제거한다.The cyclone 20 finally removes the fine specific gravity of the organic matter transported by the transfer pump 3 in the sorting mill 10 by centrifugal force of the fluid.
농축기(30)는 상기 사이클론(20)에서 완전하게 선별된 유기물을 적절한 수분함량을 가질 수 있도록 농축시킨다.The concentrator 30 concentrates the organic material completely selected in the cyclone 20 to have an appropriate water content.
가수분해조(40)는 교반모터(40a)를 구비하여 농축기(30)에서 분리된 유기물질을 일정량의 수산화나트륨을 공급해 주면서 강알칼리상태를 유지시켜 가수분해을 촉진시킨다.Hydrolysis tank 40 is provided with a stirring motor 40a to supply a certain amount of sodium hydroxide to the organic material separated from the concentrator 30 to maintain a strong alkali state to promote hydrolysis.
산발효조(50)는 교반모터(50a)를 구비하며, 이송펌프(4)에 의해 이송된 이미 가수분해된 유기물질을 미생물이 유기산으로 전환시키도록 하는 데 이 때에도 일정량의 수산화나트륨을 공급해 주면서 강알칼리상태를 유지시킨다.Acid fermentation tank (50) is provided with a stirring motor (50a), the microorganisms to convert the already hydrolyzed organic material transferred by the transfer pump 4 to the organic acid, while also supplying a certain amount of sodium hydroxide strong alkali Maintain state.
미설명 부호 70은 상기 가수분해조(40) 및 산발효조(50)에 수산화나트륨을 공급해주는 수산화나트륨 저장탱크로서 이송펌프(5)를 구비한다.Reference numeral 70 is a sodium hydroxide storage tank for supplying sodium hydroxide to the hydrolysis tank 40 and the acid fermentation tank 50 is provided with a transfer pump (5).
혐기소화조(60)는 하수슬러지를 혼입시켜 그 하수슬러지와 이미 유기산으로 전환된 음식물쓰레기 대부분을 메탄발효균에 의해 메탄가스와 이산화탄소로 전환시킨다.The anaerobic digester 60 mixes the sewage sludge and converts most of the sewage sludge and food waste already converted into organic acids into methane gas and carbon dioxide by methane fermentation bacteria.
더 구체적으로는 상기 선별분쇄기(10)에는 투입된 협잡물중에서 비닐종류와 같은 협잡물을 외곽의 장치로서 분리시키는 비닐수거기와, 비교적 작은 크기의 가벼운 비중물을 분리처리되도록 드럼스크린을 포함한 자동선별기와, 쇠붙이 등의 비교적 큰 비중을 가진 협잡물을 분리시키는 쇠붙이의 저장박스를 포함하고, 상기 사이클론(20)은 상단에 인입구와 인출구가 형성되고 하단에 전동밸브로 작동되는 게이트가 설치된 몸체와, 상기 몸체의 하방으로 연결되고 하단에 전동밸브로 작동되는 게이트와 상부벽에 전동밸브로 작동되는 용수공급관이 설치된 이물질수용통을 포함한다.More specifically, the sorting crusher 10 includes a vinyl collector for separating a contaminant such as vinyl type from the input contaminant as an outer device, an automatic sorter including a drum screen to separate and process light specific gravity of a relatively small size, Including a storage box of the iron for separating the foreign matter having a relatively large specific gravity, such as the iron, the cyclone 20 has a body inlet and outlet is formed at the top and the gate is installed in the bottom operated by an electric valve, the body of the It includes a foreign matter container installed downwardly connected to the gate operated by the electric valve at the bottom and the water supply pipe operated by the electric valve on the upper wall.
상기와 같은 구성으로 차량 등으로 실려온 음식물쓰레기는 저장호퍼(1) 및 이송콘베이어(2)를 거쳐 선별분쇄기(10)에 투입되어짐과 함께 용수공급관을 통해 용수가 공급되고, 모터를 가동시키게 되면 내설된 커터회전체의 회전에 의해 회류를 일으키며 회전, 분쇄된다.The food waste loaded into the vehicle with the above configuration is introduced into the sorting crusher 10 through the storage hopper 1 and the transfer conveyor 2, and the water is supplied through the water supply pipe, and when the motor is operated, Rotating and crushing are caused by the rotation of the cutter rotor rotated.
즉, 선별분쇄기(10)를 통해 스치로폴이나 비닐 등의 비교적 가벼운 협잡물과, 음식물이나 쇠붙이 및 모래 등의 비교적 무거운 협잡물이 분리되고, 특히 음식물쓰레기는 분쇄기의 수용통에서 회전하면서 가라앉은 음식물은 커터회전체의 커터에 의해 분쇄되면서 상기 커터의 바닥면에 형성된 다수의 배출구멍을 통과하게 되고, 통과된 음식물은 다시 음식물배출구를 통해 빠져나와 이송펌프(3)에 의해 사이클론(20)에 수용된다.That is, relatively light debris, such as Schiropol or vinyl, and relatively heavy debris, such as metal, metal, and sand, are separated through the sorting grinder 10, and in particular, the food waste is rotated in the receiving container of the grinder, and the sinked food is cutter While being crushed by the entire cutter, it passes through a plurality of discharge holes formed in the bottom surface of the cutter, and the food passed through the food outlet is again accommodated in the cyclone 20 by the transfer pump 3.
사이클론(20)의 인입구를 통해 몸체의 내벽으로 부딪쳐지는 상태로 들어온 음식물은 몸체내에서 회류를 일으키며 회전하게 되고, 이 때 음식물에 포함된 무거운 물체는 몸체 내벽을 타고 회전하면서 내려와 하방의 수용통에 쌓이게 되고, 비교적 가벼운 물과 음식물은 회전하면서 떠 올라 인출구를 통해 빠져나가게 된다.Food coming into the state hitting the inner wall of the body through the inlet of the cyclone 20 is rotated by causing a flow in the body, at this time heavy objects contained in the food rotates down the inner wall to the lower container As it accumulates, relatively light water and food float and spin out of the outlet.
따라서 상기 인출구를 통해 빠져나가는 음식물에는 거의 이물질이 섞이지 않은 순수 음식물인 유기물질로 되어진 것이다.Therefore, the food that exits through the outlet is made of an organic material that is pure food that is almost free of foreign matter.
한편, 인출구를 통해 빠져나간 순수 음식물은 다음 공정인 농축기(30)에 수용되어 농축될 수 있으나, 그렇지 않을 경우에는 바로 가수분해조(40) 및 산발효조(50)의 공정을 거치게 된다.On the other hand, the pure food exited through the outlet can be concentrated in the next process is concentrated in the concentrator 30, if not otherwise it is subjected directly to the process of hydrolysis tank 40 and acid fermentation tank (50).
농축기(30)에서는 사이클론(20)에서 완전하게 선별된 유기물을 적절한 수분함량을 가질 수 있도록 농축시키게 되고, 이어서 다음공정인 가수분해조(40)에 유입된다.In the concentrator 30, the organic material completely selected by the cyclone 20 is concentrated to have an appropriate water content, and then flowed into the hydrolysis tank 40, which is the next process.
즉, 가수분해조(40)에 유입되면 농축기(30)에서 분리된 유기물질을 일정량의 수산화나트륨을 수산화나트륨 저장탱크(70)로 부터 공급해 주면서 강알칼리상태를 유지시켜 가수분해을 촉진시킨다.That is, when the hydrolysis tank 40 is introduced, the organic material separated in the concentrator 30 is supplied with a predetermined amount of sodium hydroxide from the sodium hydroxide storage tank 70 to maintain the strong alkali state to promote hydrolysis.
다음으로 이송펌프(4)에 의해 산발효조(50)에 유입되면 생물학적으로 분해되면서 재처리된다. 이 때에도 일정량의 수산화나트륨을 수산화나트륨 저장탱크(70)로 부터 공급해 주면서 강알칼리상태를 유지시켜 산발효를 촉진시킨다.Next, when introduced into the acid fermentation tank 50 by the transfer pump 4 is biologically decomposed and reprocessed. At this time, while supplying a certain amount of sodium hydroxide from the sodium hydroxide storage tank (70) to maintain a strong alkali state to promote acid fermentation.
혐기성 반응은 생물학적으로 분해가능한 유기물이 산소가 없는 상태에서 이산화탄소(CO2)와 메탄가스(CH4)로 분해되는 과정이라 하지만 실제로는 유기물의 종류에 따라 반응의 경로 및 미생물이 정확히 규명되지 않은 복잡한 반응이다.Anaerobic reaction is a process in which biologically degradable organic matter is decomposed into carbon dioxide (CO 2 ) and methane gas (CH 4 ) in the absence of oxygen, but in reality, the reaction route and microorganism are not precisely identified according to the type of organic matter. Reaction.
대개 혐기성 분해반응은 가수분해단계, 산생성단계, 메탄생성단계로 분류되지만 가수분해단계를 산생성단게에 포함시켜 산생성단계와 메탄생성단게의 두가지 과정으로 나누기도 한다. 그리고 실제로 이 모든 혐기성반응을 한 반응조에서 완결시키는 단상 혐기조와, 산생성성반응 이후에 메탄생성을 일으키는 2상 혐기성 반응조는 많이 보편화되어 사용되고 있는 실정이다.In general, anaerobic decomposition reactions are classified into hydrolysis stage, acid generation stage, and methane generation stage, but the hydrolysis stage is included in the acid generation stage and divided into two processes, acid generation stage and methane production stage. In fact, a single-phase anaerobic tank which completes all of these anaerobic reactions in one reactor, and a two-phase anaerobic reactor, which generates methane after an acid generating reaction, are widely used.
상기 산생성단계는 유기물질 ＋ H2O → 유기산(Acetate, Propionate, Butyrate, etc)로 나타낼 수 있고, 메탄생성단계는 유기산(Acetate, Propionate, Butyrae, etc) ＋ H2→ CO2＋CH4로 나타낼 수 있으며, 위의 두 단계반응을 CnHaOb + (n - a/4 - b/2)H2O → (n/2 - a/8 + b/4)CO2 + (n/2 + a/8 - b/4)CH4와 같이 하나의 식으로 나타낼 수 있다.The acid generation step may be represented by an organic material + H 2 O → organic acid (Acetate, Propionate, Butyrate, etc), the methane production step is an organic acid (Acetate, Propionate, Butyrae, etc) + H 2 → CO 2 + CH 4 In the above two-step reaction, C n HaOb + (n-a / 4-b / 2) H 2 O → (n / 2-a / 8 + b / 4) CO 2 + ( n / 2 + a / 8-b / 4) CH 4 can be represented by one equation.
위의 두 단계 반응을 한 반응조내에서 혐기소화시킬 때 첫 단계인 산생성시 중간 생성물인 휘발서 유기산(Volatile Fatty Acids)의 생성으로 pH가 떨어지면서 메탄생성균의 활동에 저해작용을 일으킨다.When anaerobic digestion of the above two-stage reaction is carried out in one reactor, the pH decreases due to the formation of volatilized organic acids (Volatile Fatty Acids), which is an intermediate product during acid production, which inhibits methane production.
대개 산생성균의 활동에 적합한 pH는 5.0~6.5, 메탄생성균은 6.8~7.2정도로 알려져 있다. 미생물의 활성을 적절히 유지하기 위한 알칼리도는 2,000mg/L(as CaCO3)이상이 되는 것이 바람직하다.In general, the suitable pH for acid-producing bacteria is known to be 5.0-6.5, and methane-producing bacteria is 6.8-7.2. The alkalinity for properly maintaining the activity of the microorganism is preferably 2,000 mg / L (as CaCO 3 ) or more.
그러나 산생성단계중 가수분해과정은 여러 미생물이 분비하는 체외효소(Extracellular Enzymes)에 의해 고분자물질이 저분자물질로 가수분해되는 과정으로서 전체 혐기성 반응의 율속단계(Rate-Limiting Step)로 알려져 있다.However, the hydrolysis process in the acid production stage is a process in which the macromolecule is hydrolyzed into low molecular substances by extracellular enzymes secreted by various microorganisms, and is known as the rate-limiting step of the entire anaerobic reaction.
따라서 본 고안에서는 산생성단계를 가수분해과정과 산생성과정으로 분리하여 반응시킴으로써 혐기성 분해과정을 보다 빠른 시간에 보다 안정적으로 처리할 수 있을 것이다.Therefore, in the present design, the anaerobic decomposition process can be treated more stably at a faster time by separating the acid production step into a hydrolysis process and an acid production process.
즉, 본 고안은 가수분해와 산발효과정을 거쳐 하수슬러지와 함께 혐기소화조에서 메탄생성반응을 일으키게 된다.In other words, the present invention undergoes the hydrolysis and sporadic effect wells to cause methane production in the anaerobic digester together with sewage sludge.
이 과정에서 반응조내의 pH는 급격히 떨어지므로 가수분해조(40)에 이미 공급된 NaOH가 산발효조(50)의 pH저하현상을 방지하며 또한 산발효조(50)에 설치된 pH-Meter와 NaOH공급펌프(미도시)를 연동시켜 pH가 5이하로 내려갈 때에는 자동적으로 NaOH를 공급할 수 있도록 구성함이 바람직하다.In this process, since the pH in the reaction vessel drops sharply, the NaOH already supplied to the hydrolysis tank 40 prevents the pH drop of the acid fermentation tank 50, and also the pH-Meter and NaOH supply pump installed in the acid fermentation tank 50 ( Not shown) is preferably configured to automatically supply NaOH when the pH is lowered to 5 or less.
산발효조(50)의 반응조건은 온도를 중온 영역인 35~37℃로 유지하거나 고온 영역인 55~60℃로 유지할 수 있으며, 반응시간은 0.5~3일 정도로 유지한다.The reaction conditions of the acid fermentation tank 50 can be maintained at a temperature in the middle temperature range of 35 ~ 37 ℃ or at a high temperature range of 55 ~ 60 ℃, the reaction time is maintained about 0.5 ~ 3 days.
상기 혐기소화조(60)에서는 하수슬러지와 이미 유기산으로 전환된 음식물쓰레기 대부분을 메탄발효균에 의하여 메탄가스와 이산화탄소로 전환시키게 된다.In the anaerobic digestion tank 60, most of the sewage sludge and food waste already converted into organic acids are converted into methane gas and carbon dioxide by methane fermentation bacteria.
상기 혐기성소화조(60)의 반응조건은 온도를 35~37℃로, 소요반응일수를 10~30일로, pH는 7.0~7.5로 유지한다.The reaction conditions of the anaerobic digestion tank 60 is maintained at a temperature of 35 ~ 37 ℃, required reaction days 10 to 30 days, pH is 7.0 to 7.5.
이상에서 설명한 바와 같이 본 고안의 음식물쓰레기와 하수슬러지의 병합처리 시스템은, 다양한 물질로 혼합된 음식물쓰레기를 하나의 시스템에 의해 각각의 종류별로 분리처리하고, 여기서 분리된 유기물질은 가수분해조에서 일정량의 수산화나트륨을 공급해 주어면서 강알칼리상태를 유지시켜 가수분해를 촉진시키며, 산발효조에서 이미 가수분해된 유기물질을 미생물이 유기산으로 전환시키도록 하며, 혐기소화조에서 하수슬러지를 혼입시켜 그 하수슬러지와 이미 유기산으로 전환된 음식물쓰레기 대부분을 메탄발효균에 의해 메탄가스와 이산화탄소로 전화시키도록 하는 구성에 의해, 이물질이 많이 섞여있는 음식물쓰레기를 효과적으로 선별분리하여 미생물 반응과정 이송중에 기계적인 문제점을 최소화하고, 유기물질을 균질화하여 반응조건을 일정하게 유지시키게 되는 효과가 있다.As described above, the combined treatment system of food waste and sewage sludge of the present invention separates food waste mixed with various materials by one system for each type, and the separated organic materials are separated in a hydrolysis tank. By supplying a certain amount of sodium hydroxide, it maintains a strong alkali state to promote hydrolysis, and the microorganisms to convert the organic material already hydrolyzed in the acid fermentation tank to organic acid, and in the anaerobic digestion tank to mix the sewage sludge with the sewage sludge By converting most of the food waste already converted into organic acid into methane gas and carbon dioxide by methane fermentation bacteria, it effectively sorts and separates the food waste mixed with a lot of foreign substances to minimize mechanical problems during the microbial reaction process transfer, Reactor by homogenizing organic materials To the effect that is thereby kept constant.
더불어 음식물쓰레기처리시 가수분해과정을 거침으로써 짧은 시간에, 그리고 안정적으로 산발효 과정을 미생물에 의하여 반응시킬 수 있고, 음식물쓰레기를 산발효과정을 거치지 않고 바로 소화조로 투입시 국부적인 산발효로 인해 pH가 저하됨에 따라 메탄생성균의 활동에 저해현상을 일으킬 수 있으나 이러한 현상을 예방할 수 있으며, 소화조에 음식물쓰레기를 직접 투입시 산발효 속도차이로 인하여 셀률로오스 성분이 스컴층을 이룰 수 있으나 알칼리에 의한 가수분해을 수행하게 되어 그러한 문제점을 예방할 수 있게 되는 등의 효과를 발휘한다.In addition, it is possible to react the acid fermentation process in a short time and stably by microorganisms by going through hydrolysis process during food waste treatment. As the pH is lowered, it may cause inhibition of the activity of methane-producing bacteria.However, this phenomenon can be prevented and the cellulose component may form a scum layer due to the difference in acid fermentation rate when food waste is directly injected into the digester. It is possible to prevent such a problem by performing the hydrolysis by the effect such as.
본 고안은 기재된 구체예에 대해서만 상세히 설명되었지만 본 고안의 사상과 범위내에서 변형이나 변경할 수 있음은 본 고안이 속하는 분야의 당업자에게는 명백한 것이며, 그러한 변형이나 변경은 첨부한 실용신안등록청구범위에 속한다 할 것이다.Although the present invention has been described in detail only with respect to the embodiments described, it will be apparent to those skilled in the art that the present invention may be modified or changed within the spirit and scope of the present invention. something to do.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010000860A (en) * | 2000-10-24 | 2001-01-05 | 김영숙 | food waste treatment system |
| KR20020095486A (en) * | 2001-06-14 | 2002-12-27 | (주)동명기술공단종합건축사사무소 | United treatment system of food waste and sewage sludge on anaerobic digestion |
| KR100370244B1 (en) * | 2001-01-22 | 2003-02-05 | 효성에바라환경엔지니어링 주식회사 | Food waste treatment and recycling mathod and device |
| KR100417761B1 (en) * | 2001-12-05 | 2004-02-14 | 박종웅 | Method for carbon source of biological denitrification using distillery wastewater |
| KR100454535B1 (en) * | 2002-07-26 | 2004-11-03 | 고천일 | Auto cleaning system for decomposition device of organic waste |
| KR100737214B1 (en) | 2006-01-13 | 2007-07-09 | 주식회사 무한기술 | Method of purifying wastewater |
| KR100882264B1 (en) * | 2008-08-20 | 2009-02-06 | 주식회사 한국종합기술 | Environmental other materials exclusion device for fuelization organic substances sludge |
| KR101478022B1 (en) * | 2014-06-30 | 2015-01-02 | 임승택 | Agitation apparatus for anaerobic digester process |
| KR101478024B1 (en) * | 2014-06-30 | 2015-01-02 | 임승택 | Preprocessing equipment for anaerobic digester equipment |
| KR101816065B1 (en) * | 2017-10-27 | 2018-01-09 | 주식회사 주승 | The Apparatus for Disposing of Food waste |
-
2000
- 2000-04-18 KR KR2020000010957U patent/KR200199315Y1/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010000860A (en) * | 2000-10-24 | 2001-01-05 | 김영숙 | food waste treatment system |
| KR100370244B1 (en) * | 2001-01-22 | 2003-02-05 | 효성에바라환경엔지니어링 주식회사 | Food waste treatment and recycling mathod and device |
| KR20020095486A (en) * | 2001-06-14 | 2002-12-27 | (주)동명기술공단종합건축사사무소 | United treatment system of food waste and sewage sludge on anaerobic digestion |
| KR100417761B1 (en) * | 2001-12-05 | 2004-02-14 | 박종웅 | Method for carbon source of biological denitrification using distillery wastewater |
| KR100454535B1 (en) * | 2002-07-26 | 2004-11-03 | 고천일 | Auto cleaning system for decomposition device of organic waste |
| KR100737214B1 (en) | 2006-01-13 | 2007-07-09 | 주식회사 무한기술 | Method of purifying wastewater |
| KR100882264B1 (en) * | 2008-08-20 | 2009-02-06 | 주식회사 한국종합기술 | Environmental other materials exclusion device for fuelization organic substances sludge |
| KR101478022B1 (en) * | 2014-06-30 | 2015-01-02 | 임승택 | Agitation apparatus for anaerobic digester process |
| KR101478024B1 (en) * | 2014-06-30 | 2015-01-02 | 임승택 | Preprocessing equipment for anaerobic digester equipment |
| KR101816065B1 (en) * | 2017-10-27 | 2018-01-09 | 주식회사 주승 | The Apparatus for Disposing of Food waste |
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