CAJ | 학술논문

基于厌氧发酵起始阶段的氧供应量控制，研究了厌氧发酵起始阶段通氧对玉米秸秆产甲烷特性的影响。当氧气供应量为10 ml·(g VS)?1时，甲烷产量达到最大为299.8 ml·(g VS)?1，相对于不做处理的样品甲烷产量提高了8.4%。但是，氧气供应量的继续提高并没有带来甲烷产量的升高，当氧气供应量大于40 ml·(g VS)?1时，甲烷产量相对于不做处理的秸秆样品轻微下降。modified first order equation 模型拟合分析表明起始阶段微好氧处理可以加快底物的水解速度，但氧气供应量过大会延长厌氧发酵的延滞时间。另外，经过起始阶段通氧处理，秸秆厌氧发酵的VS降解率也有所提高。
기우염양발효기시계단적양공응량공제，연구료염양발효기시계단통양대옥미갈간산갑완특성적영향。당양기공응량위10 ml·(g VS)?1시，갑완산량체도최대위299.8 ml·(g VS)?1，상대우불주처리적양품갑완산량제고료8.4%。단시，양기공응량적계속제고병몰유대래갑완산량적승고，당양기공응량대우40 ml·(g VS)?1시，갑완산량상대우불주처리적갈간양품경미하강。modified first order equation 모형의합분석표명기시계단미호양처리가이가쾌저물적수해속도，단양기공응량과대회연장염양발효적연체시간。령외，경과기시계단통양처리，갈간염양발효적VS강해솔야유소제고。
In this study, the effect of oxygen supply at the initial stage of anaerobic digestion on biogas production from corn straw was investigated in batch-tests. Cumulative methane yields were between 256.6 and 299.8 ml·(g VS)?1. Maximum methane yield was obtained at oxygen load of 10 ml·(g VS)?1, which was 8.4%higher than that of the untreated sample. When oxygen loads exceeded 40 ml·(g VS)?1, slightly negative effect on methane yield was observed. The modified first order equation analysis indicated that oxygen supply treatment at the initial stage could accelerate hydrolysis of substrate. However, excessive oxygen supply during treatment might prolong the lag-phase time of anaerobic digestion. In addition, oxygen supply at the initial stage of anaerobic digestion could increase volatile solids degradation of corn straw.