Department of Civil, Architectural and Environmental Engineering, University of Naples Federico II, via Claudio 21, 80125 Naples, Italy; Department of Mathematics and Applications Renato Caccioppoli, University of Naples Federico II, via Cintia, Monte S. Angelo, 80124 Naples, Italy.
Department of Environmental Science and Engineering, Kathmandu University, P.O.Box 6250, Dhulikhel, Nepal.
Bioresour Technol. 2017 Mar;228:171-175. doi: 10.1016/j.biortech.2016.12.079. Epub 2016 Dec 24.
The aim of this work is to investigate the hydrogen and poly-β-hydroxybutyrate (PHB) production during the photofermentative treatment of the effluent from a dark fermentation reactor fed with the organic fraction of municipal solid waste. Two different inocula, an adapted culture of Rhodobacter sphaeroides AV1b and a mixed consortium of purple non sulphur bacteria have been investigated under the same operational conditions. Different hydrogen productivities of 364 and 559NmL H L were observed for the Rhodobacter sphaeroides and the mixed culture consortium tests, respectively: the consortium of PNSB resulted 1.5-fold more productive than the pure culture. On the other hand, Rhodobacter sphaeroides culture showed a higher PHB productivity (155mg PHB g COD) than the mixed culture (55mg PHB g COD). In all the tests, the concomitant H and PHB production was associated to a dissolved COD removal higher than 80%.
本工作旨在研究以城市固体废物有机部分为原料的暗发酵反应器流出物的光发酵处理过程中氢气和聚-β-羟基丁酸（PHB）的生产情况。在相同的操作条件下，研究了两种不同的接种物，即适应的球形红杆菌 AV1b 培养物和混合的紫色非硫细菌混合培养物。对于 Rhodobacter sphaeroides 和混合培养物的测试，观察到不同的氢气生产率分别为 364 和 559NmL H L：PNSB 混合培养物的生产率比纯培养物高 1.5 倍。另一方面，Rhodobacter sphaeroides 培养物的 PHB 生产率（155mg PHB g COD）高于混合培养物（55mg PHB g COD）。在所有的测试中，伴随着 H 和 PHB 的生产，溶解 COD 的去除率高于 80%。
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