본 연구는 음식물류 폐기물의 처리과정에서 발생하는 음식물류 폐수를 생활폐기물 소각시설에서 생활폐기물과 음식물류폐수를 혼합하여 소각처리 방법과 소각시 음식물류 폐수를 이용한 질소산화물 제거 및 배출가스의 영향등을 조사하고자 하였다. 음식물류 폐수는 해양배출 금지에 따른 육상처리 방법이 모색되어야 하는 시국에서 운영 중인 생활폐기물 소각시설을 이용한 소각시 대기 배출가스 중질소산화물의 농도가 음식물류 폐수의 투입량에 비례하여 낮아졌다. 이는 음식물류 폐수 중의 단백질이 아미노산으로 분해되어 생성되는 ...
본 연구는 음식물류 폐기물의 처리과정에서 발생하는 음식물류 폐수를 생활폐기물 소각시설에서 생활폐기물과 음식물류폐수를 혼합하여 소각처리 방법과 소각시 음식물류 폐수를 이용한 질소산화물 제거 및 배출가스의 영향등을 조사하고자 하였다. 음식물류 폐수는 해양배출 금지에 따른 육상처리 방법이 모색되어야 하는 시국에서 운영 중인 생활폐기물 소각시설을 이용한 소각시 대기 배출가스 중질소산화물의 농도가 음식물류 폐수의 투입량에 비례하여 낮아졌다. 이는 음식물류 폐수 중의 단백질이 아미노산으로 분해되어 생성되는 암모니아성 질소(NH3-N)의 영향 때문이다. 소각시설 운영 조건을 유지하면서 소각시 질소산화물(NOX)의 농도 외 황산화물염화수소(HCℓ), 일산화탄소(C0), 먼지(DUST)등 연돌로 배출되는 다른 물질의 농도는 크게 변화가 없었다. 음식물 폐수 소각시 배출가스 중 다이옥신(DIOXIN)은 배출농도는 음식물류 폐수 투입 여부에 관계없이 큰 차이가 없었으며, 이는 정상적인 소각시 고온의 로내 온도로 다이옥신(DIOXIN)을 파괴하고 재생성이 안 되도록 운전조건을 관리한 것 때문이다. 연관식 폐열보일러는 음식물류 폐수의 투입량이 많을수록 튜브 막힘 현상이 있었으며, 막힘 튜브는 압축공기를 이용한 튜브 청소로 원상태를 유지 할 수 있어 연속적 소각에는 방해가 되지 않았다. 유기성 폐기물인 음식물류 폐수의 자원화 처리방법과 더불어 기존 소각시설을 이용한 소각처리가 육상처리의 한 방법으로 자리매김 할 수 있으며, 소각시 배출가스의 질소산화물이 제거 되므로써 질소산화물 제거용 암모니아, 요소수 등 화학약품비용 절감하는 효과도 있는 것으로 나타났다.
본 연구는 음식물류 폐기물의 처리과정에서 발생하는 음식물류 폐수를 생활폐기물 소각시설에서 생활폐기물과 음식물류폐수를 혼합하여 소각처리 방법과 소각시 음식물류 폐수를 이용한 질소산화물 제거 및 배출가스의 영향등을 조사하고자 하였다. 음식물류 폐수는 해양배출 금지에 따른 육상처리 방법이 모색되어야 하는 시국에서 운영 중인 생활폐기물 소각시설을 이용한 소각시 대기 배출가스 중질소산화물의 농도가 음식물류 폐수의 투입량에 비례하여 낮아졌다. 이는 음식물류 폐수 중의 단백질이 아미노산으로 분해되어 생성되는 암모니아성 질소(NH3-N)의 영향 때문이다. 소각시설 운영 조건을 유지하면서 소각시 질소산화물(NOX)의 농도 외 황산화물 염화수소(HCℓ), 일산화탄소(C0), 먼지(DUST)등 연돌로 배출되는 다른 물질의 농도는 크게 변화가 없었다. 음식물 폐수 소각시 배출가스 중 다이옥신(DIOXIN)은 배출농도는 음식물류 폐수 투입 여부에 관계없이 큰 차이가 없었으며, 이는 정상적인 소각시 고온의 로내 온도로 다이옥신(DIOXIN)을 파괴하고 재생성이 안 되도록 운전조건을 관리한 것 때문이다. 연관식 폐열보일러는 음식물류 폐수의 투입량이 많을수록 튜브 막힘 현상이 있었으며, 막힘 튜브는 압축공기를 이용한 튜브 청소로 원상태를 유지 할 수 있어 연속적 소각에는 방해가 되지 않았다. 유기성 폐기물인 음식물류 폐수의 자원화 처리방법과 더불어 기존 소각시설을 이용한 소각처리가 육상처리의 한 방법으로 자리매김 할 수 있으며, 소각시 배출가스의 질소산화물이 제거 되므로써 질소산화물 제거용 암모니아, 요소수 등 화학약품비용 절감하는 효과도 있는 것으로 나타났다.
Ocean dumping of food wastewater in the Korean littoral sea since 2013 will be prohibited. Prohibition of ocean dumping of food wastewater will cause problems in future treatment method by a generator of food waste who fails to find any alternative for overland treatment. In the Ministry of Environm...
Ocean dumping of food wastewater in the Korean littoral sea since 2013 will be prohibited. Prohibition of ocean dumping of food wastewater will cause problems in future treatment method by a generator of food waste who fails to find any alternative for overland treatment. In the Ministry of Environment is promoting the overland treatment of all food wastewater through expansion of overland treatment facilities or use of the existing treatment facilities, etc by the end of the 2012 to comply with the London Convention, etc and will prevent the overalll disposal of wastes from 2013. This study examined for possibility of the food wastewater incineration treatment method as one of overland treatment method by incineration through liquefied spray of food wastewater when incinerating life wastes under operation and for the relationship, etc of air discharge material discharged in incineration, and the results of study are as follow: 1. Design of a nozzle suitable for a structure within an incinerator and control of spray quantity must be achieved for incineration of food wastewater. It is also important not to prevent any damage of refractory bodies within the incinerator owing to food wastes and install a proper input device after understanding nature and state of food wastewater. 2. Concentration of nitrogen oxides(NOx) among air discharge gases was reduced by effect of ammoniac nitrogen (NH3-N) in food wastewater when inputting food wastewater into the incinerator as the quantity of food wastewater increased. It is because ammoniac nitrogen (NH3-N) reacts with nitrogen oxide and removes nitrogen oxides(NOx). 3. Concentration of air discharge gases such as sulfuric oxide (SOx) and heavy metal, etc except for nitrogen oxides(NOx) in incineration was not largely changed and the nozzle. With regard to spray quantity of food wastewater at a suitable position, stable incineration was performed without increased concentration of discharge gases such as carbon oxide (CO) since no incomplete burning within the incinerator occurred. 4. Concentration of dioxin during mixed incineration of food wastewater with MSW was average 0.0095 ng-TEQ/S㎥ and average concentration of dioxin generated in incineration of only MSW was 0.0075 ng-TEQ/S㎥, and no mixed incineration of food wastewater gave effect on dioxin concentration. 5. In the mixed incineration of food wastewater, generation speed of scales in the inside of a tubular exhaust gas boiler became rapid and the scale generation quantity became large but the exhaust gas boiler normally operated since scales were removed in cleaning of the tube with a compressive air cleaning facility and there was no opening clogging phenomena in a filter cloth of the filtering dust collector. 6. The overland treatment method, not ocean dumping of food wastewater can be proposed as a technology since mixed incineration of food wastewater with MSW in the existing life waste incineration plant is possible, and operation costs of the incineration facility were reduced since use of drugs such as ammonia and urinary hydrogen ion excretion, etc used in incineration facilities for removing nitrogen oxides(NOx) owing to reduced concentration of nitrogen oxides(NOx) of discharge gas in the mixed incineration.
Ocean dumping of food wastewater in the Korean littoral sea since 2013 will be prohibited. Prohibition of ocean dumping of food wastewater will cause problems in future treatment method by a generator of food waste who fails to find any alternative for overland treatment. In the Ministry of Environment is promoting the overland treatment of all food wastewater through expansion of overland treatment facilities or use of the existing treatment facilities, etc by the end of the 2012 to comply with the London Convention, etc and will prevent the overalll disposal of wastes from 2013. This study examined for possibility of the food wastewater incineration treatment method as one of overland treatment method by incineration through liquefied spray of food wastewater when incinerating life wastes under operation and for the relationship, etc of air discharge material discharged in incineration, and the results of study are as follow: 1. Design of a nozzle suitable for a structure within an incinerator and control of spray quantity must be achieved for incineration of food wastewater. It is also important not to prevent any damage of refractory bodies within the incinerator owing to food wastes and install a proper input device after understanding nature and state of food wastewater. 2. Concentration of nitrogen oxides(NOx) among air discharge gases was reduced by effect of ammoniac nitrogen (NH3-N) in food wastewater when inputting food wastewater into the incinerator as the quantity of food wastewater increased. It is because ammoniac nitrogen (NH3-N) reacts with nitrogen oxide and removes nitrogen oxides(NOx). 3. Concentration of air discharge gases such as sulfuric oxide (SOx) and heavy metal, etc except for nitrogen oxides(NOx) in incineration was not largely changed and the nozzle. With regard to spray quantity of food wastewater at a suitable position, stable incineration was performed without increased concentration of discharge gases such as carbon oxide (CO) since no incomplete burning within the incinerator occurred. 4. Concentration of dioxin during mixed incineration of food wastewater with MSW was average 0.0095 ng-TEQ/S㎥ and average concentration of dioxin generated in incineration of only MSW was 0.0075 ng-TEQ/S㎥, and no mixed incineration of food wastewater gave effect on dioxin concentration. 5. In the mixed incineration of food wastewater, generation speed of scales in the inside of a tubular exhaust gas boiler became rapid and the scale generation quantity became large but the exhaust gas boiler normally operated since scales were removed in cleaning of the tube with a compressive air cleaning facility and there was no opening clogging phenomena in a filter cloth of the filtering dust collector. 6. The overland treatment method, not ocean dumping of food wastewater can be proposed as a technology since mixed incineration of food wastewater with MSW in the existing life waste incineration plant is possible, and operation costs of the incineration facility were reduced since use of drugs such as ammonia and urinary hydrogen ion excretion, etc used in incineration facilities for removing nitrogen oxides(NOx) owing to reduced concentration of nitrogen oxides(NOx) of discharge gas in the mixed incineration.
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