猪皮、猪瘦肉和猪脂肪厌氧消化产气潜力的实验研究

An Experiment on Biogas Production Potential of Pig Skin,Lean Pork and Pig Fat

文章为探究猪肉的资源化利用潜力,对新鲜购买的猪肉进行厌氧消化实验,分别以猪皮、猪瘦肉和猪脂肪为实验原料,实验温度为30℃,采用批量式发酵工艺,进行发酵产沼气实验。整个实验分别历时76 d,113 d和83 d,总产气量分别为13660 mL,18850 mL和14780mL,平均甲烷含量分别为64%,66%和63%,产沼气潜力分别为1139 mL·g^(-1)TS,1571 mL·g^(-1)TS和1231 mL·g^(-1)TS或1159 mL·g^(-1)VS,1687 mL·g^(-1)VS和1257 mL·g^(-1)VS。结果表明厌氧工艺可以很好地实现病死猪肉的资源化利用。

In order to investigate the potential of pork resource utilization,anaerobic digestion experiments of fresh pork were carried out under 30℃adopting batch fermentation with pig skin,lean pork and pig fat as raw material respectively.The fermentation with different meat lasted for 76 d,113 d and 83 d,respectively,the total gas production were 13660 mL,18850 mL and 14780 mL,the average methane content were 64%,66%and 63%,respectively.The biogas production potential were 1139 mL·g^-1 TS,1571 mL·g^-1 TS and 1231 mL·g^-1 TS,or 1159 mL·g^-1 VS,1687 mL·g^-1 VS and 1257 mL·g^-1 VS,respectively.The results showed that the anaerobic process could perfectly realize the resource utilization of diseased and dead pork.