Valorisation of wastepaper using the fibrolytic/hydrogen producing bacterium Ruminococcus albus.
Valorisation of wastepaper using the fibrolytic/hydrogen producing bacterium Ruminococcus albus.
复制标题
使用纤维溶解/产氢细菌白色瘤胃球菌对废纸进行增值。
DOI：
10.1016/j.biortech.2009.06.019
复制
发表时间：
2009
影响因子：
11.4
通讯作者：
M. Kornaros
中科院分区：
文献类型：
--
作者：
I. Ntaikou;E. Koutros;M. Kornaros
本研究旨在研究白色瘤胃球菌对不同类型废纸生物转化制氢的影响。选择了五种不同类型的废纸，即纸巾、办公用纸、图文并茂的杂志纸、纸板和报纸，作为城市固体废物中最常见的废纸的代表。以葡萄糖当量衡量的总碳水化合物的百分比从50%到100%(w/w)，而白纹伊蚊的生物转化率从它们初始重量的18%到100%。在所有病例中检测到的唯一代谢产物是醋酸盐、乙醇、甲酸盐、氢和二氧化碳。氢气产率在46~280L H2/kg纸之间，表明废纸有望成为第二代生物制氢的候选原料。随后，对纸组织和纸板的水解性进行了研究。结果表明，两种情况下的降解过程均可用零级动力学描述，是整个降解过程的限速步骤，控制着生物量的生长和代谢产物的生成。
The present study aimed to investigate the biotransformation of different kinds of wastepaper to hydrogen by the fibrotylic bacterium Ruminococcus albus. Five different types i.e. paper tissue, office paper, illustrated magazine paper, paperboard and newspaper, were selected as representatives of the most common types of wastepaper found in municipal solid wastes. The percentage of total carbohydrates measured as glucose equivalents, ranged from 50% to 100% (w/w), whereas the bioconversion by R. albus ranged from 18% to 100% of their initial weigh. The only metabolic products detected in all cases were acetate, ethanol, formate, hydrogen and carbon dioxide. The hydrogen yields ranged from 46 to 280L H2/kg paper, indicating that wastepaper could be a promising candidate for second generation biohydrogen production. Subsequently, hydrolysis was investigated for paper tissue and paperboard. It was shown that in both cases the degradation process could be satisfactory described by zero order kinetics and it was identified to be the rate limiting step for the whole process, controlling biomass growth and metabolites generation rate.