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Enhanced anaerobic digestion performance by two artificially constructed microbial consortia capable of woody biomass degradation and chlorophenols detoxification.
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-01-22 , DOI: 10.1016/j.jhazmat.2020.122076 Sameh S Ali 1 , Michael Kornaros 2 , Alessandro Manni 3 , Jianzhong Sun 4 , Abd El-Raheem R El-Shanshoury 5 , El-Refaie Kenawy 6 , Maha A Khalil 7
Journal of Hazardous Materials ( IF 12.2 ) Pub Date : 2020-01-22 , DOI: 10.1016/j.jhazmat.2020.122076 Sameh S Ali 1 , Michael Kornaros 2 , Alessandro Manni 3 , Jianzhong Sun 4 , Abd El-Raheem R El-Shanshoury 5 , El-Refaie Kenawy 6 , Maha A Khalil 7
Affiliation
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Catalpa sawdust (CSW) is a promising biomass-based biofuel. However, the complex lignocellulosic structure limits its efficient utilization in biorefinery applications. It is even more so when chlorophenols (CPs), highly toxic organic substances widely used as wood preservatives, are present. Hence, it is crucial to develop effective and eco-friendly approaches to attain deconstruction of lignocellulose and chlorophenols simultaneously as well as to improve methane (CH4) production efficiently. This study might be the first to explore the performance of the novel constructed microbial consortia CS-5 and BC-4 on woody biomass degradation and CPs detoxification simultaneously with CH4 production. After the degradation of CSW and CPs for 15 days by C5-5 or BC-4, significant reduction in lignocellulosic components and CPs mixture was realized with a total weight loss of 69.2 and 56.3 % and CPs degradation of 89 and 95 %, respectively. The toxicity of individual or mixed CPs after 15 days of degradation was reduced by approximately 90 %. The synergistic action of CS-5 and BC-4 enhanced biogas and CH4 yields over 76 and 64 % respectively, higher than control. Furthermore, CH4 production increased by 113.7 % at the peak phase of AD process. Methanosataceae represented 45.1 % of the methanogenic Archaea in digester G-III.
中文翻译：
两个人工构建的微生物群落增强了厌氧消化性能，能够降解木质生物质和解毒氯酚。
梓木屑（CSW）是一种很有前途的生物质生物燃料。然而，复杂的木质纤维素结构限制了其在生物精炼应用中的有效利用。当氯酚（CP）这种广泛用作木材防腐剂的剧毒有机物质存在时，情况更是如此。因此，开发有效且环保的方法来同时分解木质纤维素和氯酚并有效提高甲烷（CH4）产量至关重要。这项研究可能是第一个探索新型微生物群落 CS-5 和 BC-4 在木质生物质降解和 CPs 解毒与 CH4 生产同时的性能的研究。 C5-5或BC-4降解CSW和CPs 15天后，木质纤维素成分和CPs混合物显着减少，总重量分别减少69.2%和56.3%，CPs降解率分别为89%和95%。单独或混合CP的毒性在降解15天后降低了约90%。 CS-5 和 BC-4 的协同作用使沼气和 CH4 产量分别提高了 76% 和 64% 以上，高于对照。此外，在 AD 工艺的高峰阶段，CH4 产量增加了 113.7%。 Methanosataceae 占消化池 G-III 中产甲烷古细菌的 45.1%。
更新日期：2020-01-22
中文翻译：
两个人工构建的微生物群落增强了厌氧消化性能，能够降解木质生物质和解毒氯酚。
梓木屑（CSW）是一种很有前途的生物质生物燃料。然而，复杂的木质纤维素结构限制了其在生物精炼应用中的有效利用。当氯酚（CP）这种广泛用作木材防腐剂的剧毒有机物质存在时，情况更是如此。因此，开发有效且环保的方法来同时分解木质纤维素和氯酚并有效提高甲烷（CH4）产量至关重要。这项研究可能是第一个探索新型微生物群落 CS-5 和 BC-4 在木质生物质降解和 CPs 解毒与 CH4 生产同时的性能的研究。 C5-5或BC-4降解CSW和CPs 15天后，木质纤维素成分和CPs混合物显着减少，总重量分别减少69.2%和56.3%，CPs降解率分别为89%和95%。单独或混合CP的毒性在降解15天后降低了约90%。 CS-5 和 BC-4 的协同作用使沼气和 CH4 产量分别提高了 76% 和 64% 以上，高于对照。此外，在 AD 工艺的高峰阶段，CH4 产量增加了 113.7%。 Methanosataceae 占消化池 G-III 中产甲烷古细菌的 45.1%。
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