期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 251, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2019.109495
关键词
Expanded granular sludge bed reactor; Linear alkylbenzene sulfonate; Microbial diversity; Aromatic compound; Granule disruption; Anaerobic degradation
资金
- Fundacao de Amparo Pesquisa do Estado de Sao Paulo (FAPESP) [2016/11948-3, 2015/06246-7, 2015/06052-8]
- Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
In this study, the removal of anionic surfactant Linear Alkylbenzene Sulfonate (LAS) from laundry wastewater was evaluated in co-digestion with domestic sewage, using a pilot-scale Expanded Granular Sludge Bed reactor. Surfactant influent concentration was enhanced from 5 +/- 3 mg LAS L-1 (stage I) to 19 +/- 10 mg LAS L-1 (stage II) and 36 +/- mg LAS L-1 (stage III) throughout reactor operation. Sulfide levels higher than 20 mg L-1 influenced LAS removal efficiency, which decreased from 71% to 55% and 32% in stage I, II and III, respectively. Acclimation of microbial population was verified and higher relative abundance of the genera similar to Cytophaga, Bacteroides, Syntrophus and Syntrophobacter in the early stages (adaptation and stage I) was replaced by higher relative abundance of the genera Anaerophaga, Nitrosovibrio, Sulfurovum and Desulfovibrio in the last stages (stage II and III).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据