当前位置: X-MOL 学术Bioresource Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
A compound enzyme as an additive to a continuous anaerobic dynamic membrane bioreactor for enhanced lignocellulose removal from codigestion: Performance, membrane characteristics and microorganisms
Bioresource Technology ( IF 11.4 ) Pub Date : 2024-05-03 , DOI: 10.1016/j.biortech.2024.130772
Bao-Shan Xing , Xiang-Lin Chang , Yi Zhang , Sifan Cao , Xi-Fang Tang , Yong-Chen Han , Yu-You Li , Xiaochang C. Wang , Rong Chen

To explore the enzyme-enhanced strategy of a continuous anaerobic dynamic membrane reactor (AnDMBR), the anaerobic codigestion system of food waste and corn straw was first operated stably, and then the best combination of compound enzymes (laccase, -β-1,4-glucanase, xylanase) was determined via a series of batch trials. The results showed that the methane yield (186.8 ± 19.9 mL/g VS) with enzyme addition was 12.2 % higher than that without enzyme addition. Furthermore, the removal rates of cellulose, hemicellulose and lignin increased by 31 %, 36 % and 78 %, respectively. In addition, dynamic membranes can form faster and more stably with enzyme addition. The addition of enzymes changed the structure of microbial communities while maintaining sufficient hydrolysis bacteria (), promoting the proliferation of as a dominant strain and bringing stronger acetylation ability. In summary, the compound enzyme strengthening strategy successfully improved the methane production, dynamic membrane effect, and degradation rate of lignocellulose in AnDMBR.

中文翻译:


复合酶作为连续厌氧动态膜生物反应器的添加剂,用于增强共消化中木质纤维素的去除:性能、膜特性和微生物



探索连续厌氧动态膜反应器(AnDMBR)的酶强化策略,首先稳定运行餐厨垃圾和玉米秸秆厌氧共消化系统,然后选择复合酶(漆酶、-β-1,4)的最佳组合-葡聚糖酶、木聚糖酶)是通过一系列批量试验确定的。结果表明,添加酶的甲烷产量(186.8±19.9 mL/g VS)比不添加酶的甲烷产量高12.2%。此外,纤维素、半纤维素和木质素的去除率分别增加了 31%、36% 和 78%。此外,通过添加酶,动态膜可以更快、更稳定地形成。酶的添加改变了微生物群落的结构,同时保持了足够的水解菌(),促进了作为优势菌的增殖并带来了更强的乙酰化能力。综上所述,复合酶强化策略成功提高了AnDMBR中的甲烷产量、动态膜效应和木质纤维素的降解率。
更新日期:2024-05-03
down
wechat
bug