Chen Guang-Yin, Chang Zhi-Zhou, Ye Xiao-Mei, Du Jing, Xu Yue-Ding, Zhang Jian-Ying
Jiangsu Agricultural Waste Treatment and Recycle Engineering Research Center, Institute of Agricultural Resources and Environment, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
Huan Jing Ke Xue. 2012 Jan;33(1):203-7.
The characteristics of Spartina alterniflora residue after producing methane (SAR) digested alone and co-digestion of various proportions of chicken manure and SAR were investigated by batch model at 35 degrees C +/- 1 degrees C. The initial total solid (TS) loading of all treatments was 8.0%. The results indicated that there was still some biogas produced by SAR with TS biogas yield of 107.25 mL x g(-1) and average methane content of 76.92%. The cellulose crystallinity of re-digested SAR was destructed by anaerobic microorganisms, and the destruction rate was 5.55%. Co-digestion meliorated the environment where microorganisms lived in and increased the cumulative biogas yield. When the ratio of chicken manure to SAR was 4 : 1, the cumulative biogas yield was highest while the cumulative biogas yield of T1 (the rate of chicken manure to SAR is 5 : 0 based on TS), T3-T6 (the rate of chicken manure to SAR are 3 : 2, 2 : 3, 1 :4 and 0 : 5 based on TS, respectively) were 61.31%, 62.09%, 52.15%, 39.74% and 31.67% of it. The anaerobic fermentation type of co-digestion is mix acid type fermentation. Co-digested with chicken manure promoted the destruction of cellulous crystallinity by 1.13% - 21.61% and especially when the rate of chicken manure to SAR was 4 : 1.
在35℃±1℃的条件下，采用批次模型研究了单独消化产甲烷后的互花米草残渣（SAR）以及不同比例鸡粪与SAR共消化的特性。所有处理的初始总固体（TS）负荷均为8.0%。结果表明，SAR仍能产生一定量的沼气，TS沼气产量为107.25 mL·g⁻¹，平均甲烷含量为76.92%。再消化后的SAR的纤维素结晶度被厌氧微生物破坏，破坏率为5.55%。共消化改善了微生物的生存环境，提高了沼气的累积产量。当鸡粪与SAR的比例为4∶1时，沼气累积产量最高，而T1（鸡粪与SAR的TS比例为5∶0）、T3 - T6（鸡粪与SAR的TS比例分别为3∶2、2∶3、1∶4和0∶5）的沼气累积产量分别为其61.31%、62.09%、52.15%、39.74%和31.67%。共消化的厌氧发酵类型为混合酸型发酵。与鸡粪共消化促进了纤维素结晶度的破坏，破坏率提高了1.13% - 21.61%，尤其是当鸡粪与SAR的比例为4∶1时。
