Can I read Waste Activated Sludge Stimulates in Situ Microbial Reductive Dehalogenation of Organohalide-contaminated Soil on EtoBox?

Waste Activated Sludge Stimulates in Situ Microbial Reductive Dehalogenation of Organohalide-contaminated Soil by Qihong Lu; Jinting Liu; Haozheng He; Zhiwei Liang; Rongliang Qiu; Shanquan Wang is a Environmental Science article available to read on EtoBox.

What is Waste Activated Sludge Stimulates in Situ Microbial Reductive Dehalogenation of Organohalide-contaminated Soil about?

Due to its enriched organic matter, nutrients and growth cofactors, as well as a diverse range of microorganisms, waste activated sludge (WAS) might be an ideal additive to stimulate organohalide respiration for in situ bioremediation of organohalide-contaminated sites. In this study, we investigated the biostimulation and bioaugmentation impacts of WAS-amendment on the performance and microbiome in tetrachloroethene (PCE) and polychlorinated biphenyls (PCBs) dechlorinating microcosms. Results demonstrated that WAS-amendment increased PCE-and PCBs-dechlorination rate as much as 6.06 and 10.67 folds, respectively. The presence of WAS provided a favorable growth niche for organohalide-respiring bacteria (OHRB), including redox mediation and generation of electron donors and carbon sources. Particularly for the PCE dechlorination, indigenous Geobacter and WAS-derived Dehalococcoides were identified to play key roles in PCE-to-dichloroethene (DCE) and DCE-to-ethene dechlorination, respectively. Similar biostimulation and bioaugmentation effects of WASamendment were observed on both PCE-and PCBs-dechlorination in three different soils, i.e., laterite, brown loam and paddy soil. Risk ass

Who reads Waste Activated Sludge Stimulates in Situ Microbial Reductive Dehalogenation of Organohalide-contaminated Soil?

Author

Qihong Lu; Jinting Liu; Haozheng He; Zhiwei Liang; Rongliang Qiu; Shanquan Wang

Publisher

Elsevier BV

Published

2021

Language

EN

Field

Environmental Science (Physical Sciences)