KR101013577B1 - Apparatus for disposing organic waste to utilize methane gas - Google Patents
Apparatus for disposing organic waste to utilize methane gas Download PDFInfo
- Publication number
- KR101013577B1 KR101013577B1 KR1020080091274A KR20080091274A KR101013577B1 KR 101013577 B1 KR101013577 B1 KR 101013577B1 KR 1020080091274 A KR1020080091274 A KR 1020080091274A KR 20080091274 A KR20080091274 A KR 20080091274A KR 101013577 B1 KR101013577 B1 KR 101013577B1
- Authority
- KR
- South Korea
- Prior art keywords
- sewage
- heat
- discharged
- temperature
- fermentation tank
- Prior art date
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 38
- 239000010815 organic waste Substances 0.000 title claims abstract description 22
- 239000010865 sewage Substances 0.000 claims abstract description 83
- 238000000855 fermentation Methods 0.000 claims abstract description 48
- 230000004151 fermentation Effects 0.000 claims abstract description 45
- 230000001079 digestive Effects 0.000 claims abstract description 38
- 239000002351 wastewater Substances 0.000 claims abstract description 34
- 239000003507 refrigerant Substances 0.000 claims abstract description 22
- 238000001035 drying Methods 0.000 claims abstract description 5
- 235000019749 Dry matter Nutrition 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 abstract description 2
- 238000007791 dehumidification Methods 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 8
- 239000010801 sewage sludge Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 239000002826 coolant Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 244000144972 livestock Species 0.000 description 3
- 238000009264 composting Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 235000019750 Crude protein Nutrition 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic Chemical compound 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[As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N chlorine atom Chemical compound 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Images
Classifications
-
- 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
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- 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
- 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
Abstract
본 발명은 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치에 관한 것으로, 공기를 제습 및 고온으로 상승시켜 피건조물에 공급함으로써 건조효율을 높이는 것을 목적으로 한다.The present invention relates to an organic waste treatment apparatus for utilizing methane gas, and aims to increase drying efficiency by raising air to a dehumidifying and high temperature and supplying it to a dry object.
본 발명에 의한 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치는, 하수가 저장되는 하수처리탱크(10)와; 하수처리탱크에서 방출된 하수를 혐기 처리하는 소화발효조(20)와; 상기 하수처리탱크에서 방출되는 하수의 온도를 상승시켜 상기 소화발효조에 투입하고 상기 소화발효조를 거친 폐수의 온도를 하강시켜 방류토록 하는 히트펌프(30)를 포함하고, 상기 히트펌프는, 압축기(31), 상기 압축기에 의해 고온고압으로 압축된 냉매를 상기 하수처리탱크에서 방출되는 하수와 열교환시키는 제1열교환기(32), 상기 제1열교환기를 통과한 냉매를 감압하는 팽창변(33), 상기 팽창변에 의해 감압된 냉매와 상기 소화발효조에서 방출되는 폐수를 열교환시키는 제2열교환기(34)로 구성된다. 그리고, 상기 하수처리탱크에서 방출되는 하수와 상기 소화발효조에서 방출되는 폐수를 서로 열교환시켜 하수와 폐수를 각각 상기 히트펌프의 제1,2열교환기와 열교환되도록 하는 열교환기(50)가 더 포함될 수 있다.Organic waste treatment apparatus for utilizing the methane gas according to the present invention, the sewage treatment tank 10 in which the sewage is stored; A digestive fermentation tank 20 for anaerobic treatment of sewage discharged from the sewage treatment tank; It includes a heat pump (30) to increase the temperature of the sewage discharged from the sewage treatment tank to put into the digestive fermentation tank, and to lower the temperature of the waste water passed through the digestive fermentation tank to discharge the discharge, the heat pump, the compressor (31) ), A first heat exchanger 32 for exchanging the refrigerant compressed to high temperature and high pressure by the compressor with the sewage discharged from the sewage treatment tank, an expansion valve 33 for reducing the refrigerant passing through the first heat exchanger, and the expansion valve It consists of a second heat exchanger 34 for heat-exchanging the refrigerant depressurized by the waste water discharged from the digestive fermentation tank. The heat exchanger 50 may further include a heat exchanger 50 configured to heat-exchange the sewage discharged from the sewage treatment tank and the wastewater discharged from the digestive fermentation tank with each other to exchange heat with the first and second heat exchangers of the heat pump. .
건조기, 히트펌프, 제습, 증발 Dryer, Heat Pump, Dehumidification, Evaporation
Description
본 발명은 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치에 관한 것으로서, 더욱 상세하게는 하수를 혐기 반응에 의해 처리할 때 별도의 보일러를 가동하지 않고 하수의 온도를 적정 온도로 조절하여 투입할 수 있고, 혐기 반응에 의한 발효시 발생되는 메탄가스를 에너지화하여 고형의 하수 슬러지를 건조하는 등으로 사용할 수 있는 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치에 관한 것이다.The present invention relates to an organic waste treatment apparatus for utilizing methane gas, and more specifically, when treating sewage by anaerobic reaction, the sewage temperature may be adjusted to an appropriate temperature without operating a separate boiler. The present invention relates to an organic waste treatment apparatus for utilizing methane gas, which can be used to energize methane gas generated during fermentation by anaerobic reaction and dry solid sewage sludge.
현재 공장, 축사 등에서 시행되고 있는 메탄가스를 활용하기 위한 유기성 폐기물 처리방법은 일반적으로 고속 발효에 의한 퇴비화 방법이 시도되고 있으나, 퇴비화의 경우에는 우리나라 음식물 쓰레기는 염분이 다량 함유되어 있는 특성 때문에 토양의 투수성 및 뿌리의 흡수 기능 저하, 염소 농축현상으로 인한 토양의 산성화 등으로 말미암아 퇴비로서의 가치성을 상실하였으며 사료화의 경우에도 일정비 율 이상의 조지방, 조단백, 조섬유 및 조회분등의 영양성분에 대한 사료의 법적 규정과 비소, 수은등의 중금속, 아프리톡신이란 유해물질 허용 기준이 정해져 있고, 이 물질의 혼입문제와 부패방지곤란, 칼로리의 불균형, 함수율 관계등의 문제점으로 인하여 농축산 농가로부터 적극적인 호응을 얻지 못하고 있으며, 메탄가스를 활용하기 위한 유기성 폐기물 처리시스템에 있어서도 소규모 처리기술에 국한하고 있을 뿐 대용량으로 처리할 수 있는 기술과 방법이 미흡한 상태에 있다.At present, organic waste treatment methods for utilizing methane gas used in factories and livestock farms have been attempted to be composted by high-speed fermentation. However, in the case of composting, Korean food waste has a large amount of salinity. Loss of value as compost due to poor permeability, poor absorption of roots, and acidification of soil due to chlorine enrichment.For feed, the feed content of nutrients such as crude fat, crude protein, crude fiber, and crude ash is above a certain ratio. Due to legal regulations, heavy metals such as arsenic, mercury, and apritoxins, there are definite limits for hazardous substances, and due to problems such as incorporation of these substances, difficulties in anti-corruption, imbalance of calories, and moisture content relations, it is impossible to obtain active responses from farms and livestock. Organic to utilize methane gas Sexual waste disposal systems are limited to small-scale treatment technologies, but are lacking in technologies and methods for large-capacity treatment.
근래에는 유기성 폐기물을 혐기성 방법으로 처리하는 기술이 상용화되어 있다.Recently, a technique for treating organic waste by anaerobic methods has been commercialized.
도 1에서 보이는 것처럼, 유기성 폐기물을 혐기성 방법으로 처리하는 방법은, 하수처리장(1)에서 발생된 폐수를 소화조(2)에 투입하고 소화조(2)의 내부 온도를 보일러(3)에 의해 적정온도(대략 50℃)로 유지하여 발효 처리한다. 이때, 소화조(2) 내부에서는 메탄균에 의한 메탄가스가 생성된다.As shown in FIG. 1, in the method of treating organic waste by an anaerobic method, wastewater generated in a sewage treatment plant 1 is introduced into a digester 2, and the internal temperature of the digester 2 is adjusted by a boiler 3 to a proper temperature. It is maintained at (approximately 50 ° C.) and fermented. At this time, methane gas generated by methane bacteria is produced in the digester 2.
종래에는 소화조(2)에서 발생되는 메탄가스를 에너지화하여 보일러(3)를 가동함으로써 보일러(3)의 가동에 따른 비용을 절감하는 효과가 도출된다.Conventionally, by operating the boiler 3 by energizing methane gas generated in the digester 2, the effect of reducing the cost of operating the boiler 3 is derived.
이와 같이 구성된 종래 기술에 의하면, 소화조(2)에서 자연발생되는 메탄가스를 폐기하지 않고 에너지화하여 폐자원의 재활용측면과 비용측면에서 이점이 있긴 하지만, 메탄가스 에너지를 보일러(3)의 가동에만 사용하기 때문에 메탄가스의 효용성이 저하되고 있다.According to the conventional technology configured as described above, although the methane gas naturally generated in the digester 2 is energized without disposal, there is an advantage in terms of recycling and cost of waste resources, but only the operation of the boiler 3 is carried out. Since it is used, the utility of methane gas is falling.
예를 들어 전술한 기술은 폐수에 국한된 것이며, 고형의 하수 슬러지는 특별히 처리하는 기술이 없고 법적규제를 받지 않고 있기 때문에 해양 투기하고 있다. 그러나, 하수 슬러지의 해양 투기에 따른 환경오염이 심해짐에 따라 하수 슬러지의 해양 투기 금지 법안이 통과되어 곧 시행될 예정이며, 이와 같은 하수 슬러지의 퇴비화 등의 기술에 메탄가스 에너지를 접목한다면 환경오염이나 비용면에서 큰 기대효과를 도출할 수 있을 것이다.For example, the above-described technology is limited to wastewater, and solid sewage sludge is dumped at sea because it has no special treatment technology and is not legally regulated. However, due to the severe environmental pollution caused by the sewage sludge's ocean dumping, the law prohibiting the sewage sludge's ocean dumping will be passed, and it will be implemented soon, and if methane gas energy is applied to the technology such as the composting of sewage sludge, environmental pollution However, it is possible to derive big expected effects in terms of cost.
본 발명은 상기와 같은 문제점을 해결하기 위한 것으로, 하수처리장에서 발생되는 폐수를 적정온도로 가열하여 혐기성 방법으로 발효하여 처리하며, 이때 소화발효의 열원을 메탄가스 에너지가 아닌 다른 열원으로 대체하여 소화발효시 자연발생되는 메탄가스 에너지를 다른 용도로 활용할 수 있도록 한 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치를 제공하는데 그 목적이 있다.The present invention is to solve the above problems, the wastewater generated in the sewage treatment plant is heated to an appropriate temperature and fermented by an anaerobic method, wherein the heat source of digestive fermentation is replaced by a heat source other than methane gas energy to extinguish It is an object of the present invention to provide an organic waste treatment apparatus for utilizing methane gas, which can use methane gas energy generated naturally during fermentation for other purposes.
전술한 바와 같은 목적을 달성하기 위한 본 발명에 의한 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치는, 하수가 저장되는 하수처리탱크와; 하수처리탱크에서 방출된 하수를 혐기 처리하는 소화발효조와; 상기 하수처리탱크에서 방출되는 하수의 온도를 상승시켜 상기 소화발효조에 투입하고 상기 소화발효조를 거친 폐수의 온도를 하강시켜 방류토록 하는 히트펌프를 포함하고, 상기 히트펌프는, 압축기, 상기 압축기에 의해 고온고압으로 압축된 냉매를 상기 하수처리탱크에서 방 출되는 하수와 열교환시키는 제1열교환기, 상기 제1열교환기를 통과한 냉매를 감압하는 팽창변, 상기 팽창변에 의해 감압된 냉매와 상기 소화발효조에서 방출되는 폐수를 열교환시키는 제2열교환기로 구성된 것을 특징으로 한다.Organic waste treatment apparatus for utilizing the methane gas according to the present invention for achieving the object as described above, the sewage treatment tank is stored sewage; A digestive fermentation tank for anaerobic treatment of sewage discharged from the sewage treatment tank; It includes a heat pump to increase the temperature of the sewage discharged from the sewage treatment tank to enter the digestive fermentation tank, and to lower the temperature of the waste water passed through the digestive fermentation tank to discharge the discharge, the heat pump, by the compressor, the compressor A first heat exchanger for exchanging the refrigerant compressed at high temperature and high pressure with the sewage discharged from the sewage treatment tank, an expansion valve for depressurizing the refrigerant passing through the first heat exchanger, and the refrigerant decompressed by the expansion valve and the fire extinguishing tank Characterized in that it consists of a second heat exchanger for heat exchange of the waste water.
그리고, 본 발명에 따른 메탄가스를 활용하기 위한 유기성 폐기물 처리 방법은, 하수와 히트펌프의 제1열교환기를 통과하는 냉매를 서로 열교환시켜 상기 하수의 온도를 상승시키는 제1단계와; 상기 제1단계에 의해 온도가 상승된 하수를 소화발효조에 투입하여 혐기성 발효처리하는 제2단계와; 상기 제2단계를 거친 폐수와 히트펌프의 제2열교환기를 통과하는 냉매와 서로 열교환시켜 상기 폐수의 온도를 낮추는 제3단계를 포함하는 것을 특징으로 한다.In addition, the organic waste treatment method for utilizing the methane gas according to the present invention comprises a first step of raising the temperature of the sewage by heat-exchanging the refrigerant passing through the first heat exchanger of the sewage and the heat pump; A second step of putting anaerobic fermentation into the digestive fermentation tank by introducing the sewage whose temperature is increased by the first step; And a third step of lowering the temperature of the wastewater by exchanging heat with the refrigerant passing through the second heat exchanger of the wastewater and the heat pump.
본 발명에 따른 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치에 의하면, 히트펌프의 냉매와 하수를 열교환하여 하수의 온도를 발효온도로 맞춤으로써 소화발효조를 발효온도로 조절하기 위한 별도의 보일러를 가동하지 않기 때문에 종래 보일러의 가동시 사용되는 메탄가스 에너지를 다른 용도 예컨대 고형의 하수 슬러지 건조용으로 사용할 수 있으므로 자원재활용측면에서 우수한 효과를 도출할 수 있다.According to the organic waste treatment apparatus for utilizing the methane gas according to the present invention, by heating the refrigerant and sewage of the heat pump to adjust the temperature of the sewage to the fermentation temperature do not operate a separate boiler for adjusting the digestive fermentation tank to the fermentation temperature Since the methane gas energy used in the operation of the conventional boiler can be used for other applications, such as solid sewage sludge drying, it is possible to derive an excellent effect in terms of resource recycling.
<실시예 1>≪ Example 1 >
도 2에 도시된 바와 같이, 본 실시예에 의한 메탄가스를 활용하기 위한 유기성 폐기물 처리장치는, 하수가 저장되는 하수처리탱크(10)와, 하수처리탱크(10)에서 공급되는 하수를 혐기 발효시키는 소화발효조(20)와, 하수처리탱크(10)에서 공급되는 하수를 혐기 발효에 적당한 온도로 가열하여 소화발효조(20)에 공급하는 히트펌프(30)로 구성된다. 즉, 본 실시예는 소화발효조(20)를 직접 가열하는 것이 아니라 하수를 가열하는 것이며, 따라서, 소화발효조(20)에서 발생되어 소화발효조(20)를 가열하는 메탄가스 에너지를 다른 용도로 활용할 수 있는 것이다.As shown in Figure 2, the organic waste treatment apparatus for utilizing methane gas according to the present embodiment, anaerobic fermentation of the sewage treatment tank 10 and the sewage supplied from the sewage treatment tank 10 in which sewage is stored. The digestive fermentation tank 20 and the heat pump 30 for supplying the digestive fermentation tank 20 by heating the sewage supplied from the sewage treatment tank 10 to a temperature suitable for anaerobic fermentation. That is, the present embodiment is to heat the sewage rather than directly to the digestive fermentation tank 20, and thus, it is possible to utilize the methane gas energy generated in the digestive fermentation tank 20 to heat the digestive fermentation tank 20 for other purposes. It is.
하수처리탱크(10)와 소화발효조(20)는 본 실시예에 의해 신규한 구성은 없으며 기존 메탄가스를 활용하기 위한 유기성 폐기물 처리기술에서 사용되는 모든 것이 사용 가능하다.The sewage treatment tank 10 and the digestive fermentation tank 20 have no novel configuration according to the present embodiment, and all that is used in the organic waste treatment technology for utilizing the existing methane gas can be used.
히트펌프(30)는 잘 알려진 바와 같이, 냉매를 고온고압으로 압축하는 압축기(31), 압축기(31)에 의해 고온고압으로 압축된 냉매를 응축하는 제1열교환기(응축기)(32), 제1열교환기(32)를 통과한 냉매를 감압하는 팽창변(33) 및 팽창변(33)에 의해 감압된 냉매를 증발시키는 제2열교환기(증발기)(34)로 구성된다.As is well known, the heat pump 30 includes a compressor 31 for compressing a refrigerant at high temperature and high pressure, a first heat exchanger (condenser) 32 for condensing the refrigerant compressed at high temperature and high pressure by the compressor 31, and An expansion valve 33 for depressurizing the refrigerant passing through the first heat exchanger 32 and a second heat exchanger (evaporator) 34 for evaporating the refrigerant depressurized by the expansion valve 33.
본 실시예에서는 히트펌프(30)의 냉매 온도를 이용하여 하수를 상황에 맞는 적정 온도로 조절하는 것이다.In this embodiment, the sewage is adjusted to an appropriate temperature according to the situation by using the refrigerant temperature of the heat pump 30.
구체적으로 설명하면, 하수처리탱크(10)에서 방출되는 하수의 온도는 별도의 가열이나 냉각을 하지 않을 경우 약 10℃이며, 소화발효시 요구되는 온도는 35~37℃고, 폐수의 방류 온도는 약 10℃라 할 수 있다. In detail, the temperature of the sewage discharged from the sewage treatment tank 10 is about 10 ° C. unless a separate heating or cooling is performed. The temperature required for extinguishing and fermentation is 35 to 37 ° C., and the discharge temperature of the wastewater is It may be referred to as about 10 ℃.
따라서, 하수처리탱크(10)에서 방출되어 소화발효조(20)에 공급되는 하수와 히트펌프(30)의 제1열교환기(32)를 통과하는 냉매가 열교환되도록 함으로써 하수의 온도를 약 37℃로 올리고 소화발효조(20)에서 방출되는 폐수와 히트펌프(30)의 제2열교환기(34)를 통과하는 냉매를 열교환시켜 10℃로 조절하는 것이다.Therefore, the sewage temperature is discharged from the sewage treatment tank 10 and the coolant passing through the first heat exchanger 32 of the heat pump 30 and the sewage supplied to the digestive fermentation tank 20 is heat exchanged to about 37 ° C. The oligohydride is discharged from the fermentation tank 20 to heat the refrigerant passing through the second heat exchanger 34 of the heat pump 30 to adjust to 10 ℃.
이와 같은 구성에 의해 유기성 폐기물인 하수를 혐기 처리하여 폐수를 방류할 수 있고, 이때, 소화발효조(20)에서는 메탄가스가 생성되어 배출된다. By such a configuration, wastewater can be discharged by anaerobic treatment of sewage, which is an organic waste. At this time, methane gas is generated and discharged from the digestive fermentation tank 20.
본 실시예에서는 메탄가스 에너지를 열원으로 하여 피건조물을 건조하는 건조기(40)가 더 포함된다.The present embodiment further includes a dryer 40 for drying the dry item using methane gas energy as a heat source.
건조기(40)는 피건조물이 수납되고 메탄가스 에너지를 상기 피건조물에 공급하는 구조이며, 이에 대해서는 당업자라면 공지된 메탄가스 에너지화 기술과 건조기의 기술을 통해 쉽게 실시할 수 있을 것이므로 구체적인 구성의 설명은 생략한다.The dryer 40 has a structure in which a dry matter is stored and supplies methane gas energy to the dry matter, which will be easily understood by those skilled in the art through a known methane gas energyization technique and a dryer technique. Is omitted.
이와 같이 구성된 본 실시예에 의한 메탄가스를 활용하기 위한 유기성 폐기물 처리 방법은 다음과 같다.The organic waste treatment method for utilizing methane gas according to this embodiment configured as described above is as follows.
(S10) 하수 집수.(S10) sewage catchment.
공장이나 축사 등에서 생기는 하수를 하수처리탱크(10)에 집수한다. 하수처리탱크(10)는 혐기 치리를 위하여 별도의 조건은 없으며, 저장된 하수의 온도는 약 10℃ 정도일 것이다.The sewage generated in a factory or a livestock house is collected in the sewage treatment tank 10. Sewage treatment tank 10 is not a separate condition for anaerobic treatment, the temperature of the stored sewage will be about 10 ℃.
(S20) 하수 공급.(S20) sewage supply.
하수처리탱크(10)에서 방출되는 하수의 온도는 10℃이지만 혐기 처리에 적당한 온도는 35~37℃이므로, 하수의 온도를 혐기 처리 온도로 상승시켜야 하며, 하수와 히트펌프(30)의 제1열교환기(32)를 통과하는 냉매가 서로 열교환되도록 한다. 이 과정에서 하수는 냉매로부터 열을 빼앗아 온도가 약 37℃로 상승하며 반대로 냉매는 온도가 낮아지게 된다.The temperature of the sewage discharged from the sewage treatment tank 10 is 10 ℃ but the temperature suitable for anaerobic treatment is 35 ~ 37 ℃, the temperature of the sewage should be raised to the anaerobic treatment temperature, the first of the sewage and heat pump 30 The refrigerant passing through the heat exchanger 32 is allowed to heat exchange with each other. In this process, sewage takes heat away from the coolant and the temperature rises to about 37 ° C. On the contrary, the coolant lowers the temperature.
(S30) 혐기 반응.(S30) anaerobic reaction.
37℃의 하수를 소화발효조(20)에 적정량 투입하면 소화발효조(20)에서는 혐기 반응에 의해 하수가 처리된다. 하수의 온도가 혐기 반응에 적당한 온도이기 때문에 소화발효조(20)는 가열이 되지 않은 상태이며, 하수의 혐기 반응은 공지된 것이므로 구체적인 설명은 생략한다.When a suitable amount of sewage at 37 ° C. is introduced into the digestive fermentation tank 20, the sewage is treated by the anaerobic reaction in the digestive fermentation tank 20. Since the temperature of the sewage is a temperature suitable for the anaerobic reaction, the digestive fermentation tank 20 is not heated, and the anaerobic reaction of the sewage is well known, and thus a detailed description thereof will be omitted.
(S40) 폐수 방류.(S40) wastewater discharge.
소화발효조(20)에서 반응이 완료된 폐수는 방류된다. 이때, 폐수의 온도는 35℃정도이며, 이 상태로 방류하면 하수계통이 오염될 수 있을 것이므로 그대로 방류하지 않고 히트펌프(30)의 제2열교환기(34)를 통과시켜 온도를 낮춘다.Waste water from which the reaction is completed in the digestive fermentation tank 20 is discharged. At this time, the temperature of the waste water is about 35 ° C, and if discharged in this state, the sewage system may be contaminated, so that the temperature is lowered by passing the second heat exchanger 34 of the heat pump 30 without being discharged as it is.
즉, 소화발효조(20)에서 방출되는 폐수와 제2열교환기(34) 내부를 흐르는 냉매가 열교환되면 폐수가 냉매에게 열을 빼앗기게 되어 폐수의 온도는 낮아지게 된다.That is, when the wastewater discharged from the digestive fermentation tank 20 and the refrigerant flowing inside the second heat exchanger 34 exchange heat, the wastewater loses heat to the refrigerant, thereby lowering the temperature of the wastewater.
(S50) 메탄가스 에너지 활용.(S50) Methane gas energy utilization.
(S30) 혐기 반응시에는 메탄가스가 자연발생되며, 상기 메탄가스를 에너지화한 후 건조기(40)에 공급하여, 건조기(40)에 담긴 피건조물 예를 들어 고형의 하수 슬러지를 건조함으로써 퇴비화한다.(S30) During the anaerobic reaction, methane gas is naturally generated, and the methane gas is energized and then supplied to the dryer 40, and composted by drying the dried material contained in the dryer 40, for example, solid sewage sludge. .
<실시예 2><Example 2>
전술한 실시예 1은 히트펌프(30)에 의해서만 열교환이 이루어지기 때문에 히트펌프(30)의 용량이 커질 수밖에 없으며, 본 실시예는 히트펌프(30)의 용량을 줄일 수 있도록 구성된 것을 특징으로 한다.Since the heat exchange is performed only by the heat pump 30, the first embodiment has to increase the capacity of the heat pump 30, and the present embodiment is characterized in that it is configured to reduce the capacity of the heat pump 30. .
도 3에서 보이는 것처럼, 본 실시예에 따른 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치는, 하수처리탱크(10)에서 방출되는 하수와 소화발효조(20)에서 방출되는 폐수의 온도차를 이용한 것으로, 이 온도차에 의해 하수와 폐수를 서로 열교환한 후 히트펌프(30)에 의해 적정 온도로 조절한 것이다.As shown in FIG. 3, the organic waste treatment apparatus for utilizing methane gas according to the present embodiment uses a temperature difference between wastewater discharged from the sewage treatment tank 10 and wastewater discharged from the digestive fermentation tank 20. The sewage and wastewater are exchanged with each other by the temperature difference and then adjusted to an appropriate temperature by the heat pump 30.
본 실시예는 하수와 폐수를 열교환하기 위한 열교환기(50)가 더 적용된다.In this embodiment, a heat exchanger 50 for further exchanging sewage and wastewater is further applied.
즉, 열교환기(50)는 하수처리탱크(10)에서 방출되는 하수와 소화발효조(20)에서 방출된 폐수가 각각 흐르는 2개의 유로가 구비된 판열교환기일 수 있다.That is, the heat exchanger 50 may be a plate heat exchanger having two flow paths, respectively, through which sewage discharged from the sewage treatment tank 10 and wastewater discharged from the digestive fermentation tank 20 flow.
열교환기(50)의 2개의 유로 중 어느 하나의 유로는 하수처리탱크(10)의 출구측 및 히트펌프(30)의 제1열교환기(32)측과 연결되며, 나머지 유로는 소화발효조(20)의 출구측 및 히트펌프(30)의 제2열교환기(34)측과 연결된다.Any one of the two flow paths of the heat exchanger 50 is connected to the outlet side of the sewage treatment tank 10 and the first heat exchanger 32 side of the heat pump 30, and the remaining flow path is a digestive fermentation tank 20. And the second heat exchanger 34 side of the heat pump 30.
본 실시예에 따르면, 하수처리탱크(10)에서 방출된 하수는 먼저 열교환기(50)를 통과하며, 이때, 소화발효조(20)에서 방출되어 열교환기(50)에 유입된 폐수와 열교환한다. 따라서, 10℃의 하수는 35℃의 폐수와 열교환하여 약 20℃로 온 도가 상승하며, 반대로 35℃의 폐수는 25℃로 온도가 떨어지게 된다.According to this embodiment, the sewage discharged from the sewage treatment tank 10 first passes through the heat exchanger 50, and at this time, it is discharged from the digestive fermentation tank 20 to exchange heat with wastewater introduced into the heat exchanger 50. Therefore, the temperature of the sewage at 10 ° C heats up to about 20 ° C by heat exchange with the waste water at 35 ° C, on the contrary, the temperature of the 35 ° C wastewater drops to 25 ° C.
결국 소화발효조(20)에 공급되는 하수의 온도(37℃)와 소화발효조(20)에서 방출되는 폐수의 온도(35℃)가 실시예 1과 동일할 때 히트펌프(30)의 제1열교환기(32)와 열교환되는 하수가 20℃이고, 제2열교환기(34)와 열교환되는 폐수가 25℃이기 때문에 실시예 1보다 온도차가 크지 않으므로 히트펌프(30)의 구동력을 작게 할 수 있고 히트펌프(30)의 사용 수량을 줄일 수 있다.As a result, when the temperature of the sewage supplied to the digestive fermentation tank 20 (37 ° C.) and the temperature of the wastewater discharged from the digestive fermentation tank 20 (35 ° C.) are the same as those of Example 1, the first heat exchanger of the heat pump 30 Since the sewage heat exchanged with the 32 is 20 ° C., and the waste water heat exchanged with the second heat exchanger 34 is 25 ° C., the temperature difference is not larger than that of the first embodiment, so that the driving force of the heat pump 30 can be reduced and the heat pump The use quantity of 30 can be reduced.
도 1은 종래 기술에 의한 유기성 폐기물 처리 장치의 구성도.1 is a block diagram of an organic waste treatment apparatus according to the prior art.
도 2는 본 발명의 실시예 1에 의한 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치의 구성도.2 is a block diagram of an organic waste treatment apparatus for utilizing methane gas according to the first embodiment of the present invention.
도 3은 본 발명의 실시예 2에 의한 메탄가스를 활용하기 위한 유기성 폐기물 처리 장치의 구성도.3 is a block diagram of an organic waste treatment apparatus for utilizing methane gas according to a second embodiment of the present invention.
< 도면의 주요 부분에 대한 부호 설명><Description of Signs for Main Parts of Drawings>
10 : 하수처리탱크, 20 : 소화발효조10: sewage treatment tank, 20: digestive fermentation tank
30 : 히트펌프, 40 : 하수슬러지 건조기30: heat pump, 40: sewage sludge dryer
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| KR101842230B1 (en) | 2016-01-27 | 2018-05-04 | 엔플러스(주) | Energy supply system for digester apparatus heating type |
| KR101979423B1 (en) * | 2018-01-23 | 2019-05-16 | 공주대학교 산학협력단 | High concentrated organic wasted water treating method |
| KR20190089664A (en) * | 2018-01-23 | 2019-07-31 | 공주대학교 산학협력단 | High concentrated organic wasted water treating apparatus |
| KR102019628B1 (en) | 2019-02-12 | 2019-09-06 | 나평철 | Temperature control apparatus and organic waste disposal apparatus |
| KR20200073089A (en) * | 2018-12-13 | 2020-06-23 | 공주대학교 산학협력단 | Jinseng processing organic wasted water treating apparatus |
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| KR20020072051A (en) * | 2001-03-08 | 2002-09-14 | 박선우 | Method to manufacture substitute fuel using food wastes |
| KR20040026809A (en) * | 2002-09-26 | 2004-04-01 | 주식회사 피엠씨코리아 | Sludge digestion system of wastewater |
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| KR20020072051A (en) * | 2001-03-08 | 2002-09-14 | 박선우 | Method to manufacture substitute fuel using food wastes |
| KR20040026809A (en) * | 2002-09-26 | 2004-04-01 | 주식회사 피엠씨코리아 | Sludge digestion system of wastewater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR101842230B1 (en) | 2016-01-27 | 2018-05-04 | 엔플러스(주) | Energy supply system for digester apparatus heating type |
| KR101979423B1 (en) * | 2018-01-23 | 2019-05-16 | 공주대학교 산학협력단 | High concentrated organic wasted water treating method |
| KR20190089664A (en) * | 2018-01-23 | 2019-07-31 | 공주대학교 산학협력단 | High concentrated organic wasted water treating apparatus |
| KR102054907B1 (en) * | 2018-01-23 | 2020-01-22 | 공주대학교 산학협력단 | High concentrated organic wasted water treating apparatus |
| KR20200073089A (en) * | 2018-12-13 | 2020-06-23 | 공주대학교 산학협력단 | Jinseng processing organic wasted water treating apparatus |
| KR102150175B1 (en) * | 2018-12-13 | 2020-10-07 | 공주대학교 산학협력단 | Jinseng processing organic wasted water treating apparatus |
| KR102019628B1 (en) | 2019-02-12 | 2019-09-06 | 나평철 | Temperature control apparatus and organic waste disposal apparatus |
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