Department of Public Health and Pediatrics, University of Torino, piazza Polonia 94, 10126 Torino, Italy.
Department of Public Health and Pediatrics, University of Torino, piazza Polonia 94, 10126 Torino, Italy.
Bioresour Technol. 2015 Jun;186:179-191. doi: 10.1016/j.biortech.2015.03.042. Epub 2015 Mar 12.
Anaerobic digestion was introduced into wastewater treatment plants several years ago, but anaerobic digestion performance has not yet been achieved. The variability of the microbial community in digesters is poorly understood, and despite the crucial role of anaerobic digestion reactors, the microbial equilibrium that yields the best performance in these reactors has only recently been hypothesised. In this study, two full-scale continuous anaerobic reactors, placed in Torino's main wastewater treatment plant in northern Italy, were followed to develop a summary indicator for measuring anaerobic digestion performance. A total of 100 sludge samples were collected. The samples were characterised chemically and physically, and microbial groups were quantified by qRT-PCR. A chemical biological performance index strictly correlated to specific biogas production (rho=0.739, p<0.01) is proposed. This approach will produce new management tools for anaerobic digestion in wastewater treatment plants.
几年前，厌氧消化技术被引入到污水处理厂，但尚未实现厌氧消化的性能。人们对消化器中微生物群落的可变性知之甚少，尽管厌氧消化反应器起着至关重要的作用，但最近才提出了在这些反应器中产生最佳性能的微生物平衡假设。在这项研究中，对意大利北部都灵主要污水处理厂的两个全规模连续厌氧反应器进行了跟踪，以开发用于测量厌氧消化性能的综合指标。共收集了 100 份污泥样本。对样本进行了化学和物理特性分析，并通过 qRT-PCR 对微生物群进行了定量。提出了一个与特定沼气产量严格相关的化学-生物性能指数（rho=0.739，p<0.01）。这种方法将为污水处理厂的厌氧消化提供新的管理工具。
