添加食物垃圾对处理城市污水的厌氧膜生物反应器中微生物群落的影响。
Influence of food waste addition over microbial communities in an Anaerobic Membrane Bioreactor plant treating urban wastewater.
机构信息
CALAGUA - Unidad Mixta UV-UPV, Departament d'Enginyeria Química, Universitat de València, Avinguda de la Universitat s/n, Burjassot, Valencia, 46100, Spain.
CALAGUA - Unidad Mixta UV-UPV, Institut Universitari d'Investigació d'Enginyeria de l'Aigua i Medi Ambient - IIAMA, Universitat Politècnica de Valencia, Camí de Vera s/n, Valencia, 46022, Spain.
出版信息
J Environ Manage. 2018 Jul 1;217:788-796. doi: 10.1016/j.jenvman.2018.04.018. Epub 2018 Apr 24.
Notorious changes in microbial communities were observed during and after the joint treatment of wastewater with Food Waste (FW) in an Anaerobic Membrane Bioreactor (AnMBR) plant. The microbial population was analysed by high-throughput sequencing of the 16S rRNA gene and dominance of Chloroflexi, Firmicutes, Synergistetes and Proteobacteria phyla was found. The relative abundance of these potential hydrolytic phyla increased as a higher fraction of FW was jointly treated. Moreover, whereas Specific Methanogenic Activity (SMA) rose from 10 to 51 mL CH g VS, Methanosarcinales order increased from 34.0% over 80.0% of total Archaea, being Methanosaeta the dominant genus. The effect of FW over AnMBR biomass was observed during the whole experience, as methane production rose from 49.2 to 144.5 L CH · kg influent COD. Furthermore, biomethanization potential was increased over 82% after the experience. AnMBR technology allows the established microbial community to remain in the bioreactor even after the addition of FW, improving the anaerobic digestion of urban wastewater.
在采用厌氧膜生物反应器（AnMBR）联合处理废水和食物垃圾（FW）期间和之后，观察到微生物群落发生了显著变化。通过高通量测序 16S rRNA 基因对微生物种群进行了分析，发现绿弯菌门、厚壁菌门、互养菌门和变形菌门的优势度最高。随着 FW 联合处理比例的增加，这些潜在的水解菌门的相对丰度增加。此外，尽管 Specific Methanogenic Activity（SMA）从 10 上升到 51 mL CH g VS，但产甲烷菌门的数量从总古菌的 34.0%增加到 80.0%，其中产甲烷菌属是优势属。在整个实验过程中，FW 对 AnMBR 生物量的影响都很明显，因为甲烷产量从 49.2 增加到 144.5 L CH · kg 进水 COD。此外，生物甲烷化潜力增加了 82%以上。AnMBR 技术允许已建立的微生物群落即使在添加 FW 后仍留在生物反应器中，从而提高了城市废水的厌氧消化能力。
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