Photosynthetic bacteria-based membrane bioreactor as post-treatment of an anaerobic membrane bioreactor effluent

被引：29
作者：
Gonzalez, E. [1 ]
Diaz, O. [1 ]
Ruigomez, I. [1 ]
de Vera, C. R. [2 ,3 ]
Rodriguez-Gomez, L. E. [1 ]
Rodriguez-Sevilla, J. [1 ]
Vera, L. [1 ]
机构：
[1] Univ La Laguna, Dept Ingn Quim & Tecnol Farmaceut, Astrof Fco Sanchez S-N, San Cristobal la Laguna 38200, Spain
[2] Univ La Laguna, Inst Bioorgan Antonio Gonzalez IUBO AG, Ctr Invest Biomed Canarias CIBICAN, Dept Quim Organ, Tenerife, Spain
[3] Univ La Laguna, Dept Quim Organ, Astrof Fco Sanchez S-N, San Cristobal la Laguna 38200, Spain
来源：
BIORESOURCE TECHNOLOGY | 2017年 / 239卷
关键词：
Membrane photobioreactor; Photoheterotrophs; Rhodopseudomonas sp; Membrane fouling; Reclaimed water; WASTE-WATER; REMOVAL;
D O I：
10.1016/j.biortech.2017.05.042
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Anaerobic membrane bioreactors have attracted increasing interest in the field of wastewater treatment. However, significant amounts of organic matter, nitrogen and sulphide in the effluent may limit its reuse. A photosynthetic bacteria-based membrane bioreactor is proposed for the further treatment of this effluent. A pilot-scale unit was run outdoor for over 900 h to assess the process performance at short hydraulic retention time. After an initial biomass development, simultaneous removal of soluble organic matter and nitrogen was achieved (65% and 39%, respectively). In addition, a significant concentration of sulphate was detected in the permeate, revealing an evident sulphide oxidation. Despite the accumulation of biopolymer clusters in the biological suspension, membrane fouling was effectively mitigated by airaided backwashing, allowing a sustainable operation. Several strains of bacteria were identified including the photoheterotrophic bacteria Rhodopseudomonas sp. and the nitrifying and denitrifying bacteria Chryseobacterium sp. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：528 / 532
页数：5
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