Department of Civil Engineering, Regional Centre of Anna University, Tirunelveli, India.
Department of Civil Engineering, Thiagarajar College of Engineering, Madurai, India.
Bioresour Technol. 2015 Jan;175:396-405. doi: 10.1016/j.biortech.2014.10.122. Epub 2014 Oct 31.
The present study investigates the impacts of phase separated disintegration through CaCl2 (calcium chloride) mediated biosurfactant producing bacterial pretreatment. In the initial phase of the study, the flocs were disintegrated (deflocculation) with 0.06g/gSS of CaCl2. In the subsequent phase, the sludge biomass was disintegrated (cell disintegration) through potent biosurfactant producing new novel bacteria, Planococcus jake 01. The pretreatment showed that suspended solids reduction and chemical oxygen demand solubilization for deflocculated - bacterially pretreated sludge was found to be 17.14% and 14.14% which were comparatively higher than flocculated sludge (treated with bacteria alone). The biogas yield potential of deflocculated - bacterially pretreated, flocculated, and control sludges were observed to be 0.322(L/gVS), 0.225(L/gVS) and 0.145(L/gVS) respectively. To our knowledge, this is the first study to present the thorough knowledge of biogas production potential through a novel phase separated biosurfactant bacterial pretreatment.
本研究调查了通过 CaCl2（氯化钙）介导的产生物表面活性剂细菌预处理实现相分离解体的影响。在研究的初始阶段，用 0.06g/gSS 的 CaCl2 使絮体解体（解絮）。在随后的阶段，通过新型产生物表面活性剂的新型有效细菌 Planococcus jake 01 使污泥生物量解体（细胞解体）。预处理表明，解絮 - 细菌预处理污泥的悬浮固体减少和化学需氧量溶解率分别为 17.14%和 14.14%，明显高于絮体污泥（仅用细菌处理）。解絮 - 细菌预处理、絮体和对照污泥的沼气产率潜力分别为 0.322（L/gVS）、0.225（L/gVS）和 0.145（L/gVS）。据我们所知，这是首次通过新型相分离生物表面活性剂细菌预处理来展示沼气生产潜力的全面知识的研究。
