유기성 폐기물을 이용한 고온 메탄 발효의 특성 (Characteristics of Thermophilic Methane Fermentation Using the Organic Wastes)

서지정보

· 발행기관 : 유기성자원학회
· 수록지 정보 : 유기물자원화 / 16권 / 2호 / 29 ~ 37페이지
· 저자명 : 김남천, 최석순

초록

In this work, it was investigated that various aspects of process, application situation, merits
and short-coming results of the thermophilic methane fermentation with highly concentrated
organic waste substances such as sewage sludges, food wastes and excretions. The merits of this methane fermentation were that it had a very fast reaction rate and was possible to proceed in high loads. It was also high in mortality for pathogenic microorganism and the digested sludge was more hygienic. However, the short-comings were that more energy was required for heating in the fermentation facility, no surplus energy could be gained from low concentration of organic waste, the fermentation treatment dropped level of water quality, thus burdens discharging process of water. Especially, the high concentration of methane fermentation could possibly lack nutritious salt and could face the disturbance by NH4
+-N, a proper alternative was required. In general, thermophilic methane fermentation was considered as a better mean in disposing of cow excretion and food waste which were highly concentrated organic wastes. On the other hand, under the condition where the concentration of waste material was low and the high concentrate waste material became higher than 3,000 mg/L in NH4+-N, thermophilic methane fermentation resulted less desirable outcome.

영어초록

In this work, it was investigated that various aspects of process, application situation, merits
and short-coming results of the thermophilic methane fermentation with highly concentrated
organic waste substances such as sewage sludges, food wastes and excretions. The merits of this methane fermentation were that it had a very fast reaction rate and was possible to proceed in high loads. It was also high in mortality for pathogenic microorganism and the digested sludge was more hygienic. However, the short-comings were that more energy was required for heating in the fermentation facility, no surplus energy could be gained from low concentration of organic waste, the fermentation treatment dropped level of water quality, thus burdens discharging process of water. Especially, the high concentration of methane fermentation could possibly lack nutritious salt and could face the disturbance by NH4
+-N, a proper alternative was required. In general, thermophilic methane fermentation was considered as a better mean in disposing of cow excretion and food waste which were highly concentrated organic wastes. On the other hand, under the condition where the concentration of waste material was low and the high concentrate waste material became higher than 3,000 mg/L in NH4+-N, thermophilic methane fermentation resulted less desirable outcome.

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