CAJ | 학술논문

酒糟是酒精工业和酿酒工业的废弃物，通过厌氧发酵不仅可以解决酒糟废弃物污染的问题，还可以提供能源，并且经厌氧发酵后的沼液、沼渣还可以用作生物肥。开展了中温（37℃）条件下的酒糟厌氧发酵产生沼气研究，并分析了厌氧发酵前后物料组成变化及酒糟沼液作为生物液态肥的可行性。结果表明：四种酒糟的沼气产量从高到低依次为玉米燃料乙醇酒糟、酱香型白酒酒糟、浓香型白酒酒糟、木薯燃料乙醇酒糟，对应的产气量分别为607.4、578.7、434.2、122.3 ml·g-1（以VS计）；各酒糟厌氧发酵产沼气的甲烷体积分数均在60%～70%之间；酒糟的沼气产量与其 VS 降解率呈正比；酒糟发酵液各元素及离子含量符合生物液态肥标准，是一种很好的生物液态肥原料。
주조시주정공업화양주공업적폐기물，통과염양발효불부가이해결주조폐기물오염적문제，환가이제공능원，병차경염양발효후적소액、소사환가이용작생물비。개전료중온（37℃）조건하적주조염양발효산생소기연구，병분석료염양발효전후물료조성변화급주조소액작위생물액태비적가행성。결과표명：사충주조적소기산량종고도저의차위옥미연료을순주조、장향형백주주조、농향형백주주조、목서연료을순주조，대응적산기량분별위607.4、578.7、434.2、122.3 ml·g-1（이VS계）；각주조염양발효산소기적갑완체적분수균재60%～70%지간；주조적소기산량여기 VS 강해솔정정비；주조발효액각원소급리자함량부합생물액태비표준，시일충흔호적생물액태비원료。
Anaerobic digestion of stillage residue from the ethanol and wine industry is a promising method to provide energy and reduce waste. In addition, biogas slurry and biogas residue can be used as biological fertilizer after anaerobic digestion. In this study, anaerobic digestion of stillage was tested at medium temperature, meanwhile, the element changes and the feasibility of biogas slurry used as biological liquid fertilizer were investigated. The cumulative biogas yields from corn ethanol stillage, Maotai-flavor stillage, Luzhou-flavor stillage and cassava fuel ethanol stillage were 607.4, 578.7, 434.2, 122.3 ml·g-1(based on VS), respectively. The methane contents of biogas ranged from 60% to 70%. The biogas potential of stillage was proportional to degradation of substrates. The ions content of biogas slurry was in the range of the standard of biological liquid fertilizer.