バイオマス利活用施設では，有機物の腐敗等により臭気が発生しやすい.そのため，臭気の抑制，確実な捕集，適切な脱臭処理といった厳密な臭気管理が求められる.食品系廃棄物を対象としたバイオガス化施設は，エネルギー回収の観点から有望視されているが,施設で発生する臭気成分についての知見が乏しいため.脱臭装置の設計は主に硫黄系臭気成分を対象にした下水やし尿処理施設の基準を参考にされることが多い.そこで筆者らは，適切な脱臭設備設計のため，バイオガス化施設特有の高濃度臭気を発生する生ごみ受入ホッパ，可溶化槽，脱水機，乾燥機，堆肥化発酵装置といった臭気源の臭気について考察した.%Facilities to utilize biomass tend to emit odor typically from sources such as decaying organic matter. Strict odor control measures are thus needed, for example, to suppress, effectively capture and properly deodorize odor. Although biogasification facilities for food waste are regarded as promising from the energy recovery viewpoint, their deodorization equipment has generally been designed, in the scarcity of knowledge on compounds of odor generated in such facilities, referring to the standards for sewage or night soil treatment plants which primarily target sulfur-base odorous compounds. This prompted us to perform a study, for the purpose of appropriately designing deodorization equipment for biogasification facilities, on odorous compounds generated by garbage-receiving hoppers, solubilization tanks, dehydrators, dryers and composting fermentation apparatus, which emit a highly concentrated odor peculiar to biogasification facilities.
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