Effective removal of methyl siloxane from water by sewage activated sludge microbes: biodegradation behavior and characteristics of microbial community

Wang，Yi1,2,3; Zhang，Zi Feng1; Xu，Xi Jun1; Chen，Chuan1; Xu，Jia Bao3; Kong，Ling Chao1; Xie，Peng1; Zheng，Chun Miao2; Ren，Nan Qi1; Lee，Duu Jong4,5

2019-09-01

10.1016/j.biteb.2019.100209

Bioresource Technology Reports   影响因子和分区

2589-014X

Current approaches of polydimethylsiloxanes (PDMS) treatment mostly rely on transferring from the liquid phase to other phases (gas and solid), leaving secondary pollution risks. In this study, biodegradation of PDMS in wastewater was found with activated sludge collected from real wastewater treatment plants (WWTPs). The highest biodegradation rates of dodecamethylpentasiloxane (L5) and tetradecamethylhexasiloxane (L6) reached up to 58.3% and 21.4% within 5-day anaerobic incubation at 37 °C under shaking at 100 rpm. Moreover, the microbial communities were investigated by using Illumina high-throughput sequencing of 16S-rRNA, which pointed Clostridium spp. as a potential candidate responsible for the biodegradation of PDMS under anaerobic condition. Notably, this is the first report of effective biodegradation of PDMS by microbes in activated sludge. This study could open up possibilities for bioavailable methods to depollute other emerging organic pollutants in water.

Adsorption Biodegradation Methyl siloxane Microbial community composition

EI

英语

其他

20211010031562

Activated sludge process ; Adsorption ; Bacteria ; Microchannels ; Organic pollutants ; RNA ; Sewage ; Sewage treatment plants ; Silicones ; Wastewater treatment ; Water pollution

Municipal and Industrial Wastes; Waste Treatment and Disposal:452 ; Water Pollution:453 ; Biological Materials and Tissue Engineering:461.2 ; Biotechnology:461.8 ; Chemical Operations:802.3 ; Organic Compounds:804.1 ; Organic Polymers:815.1.1

2-s2.0-85076064527

Scopus

1.State Key Laboratory of Urban Water Resource and Environment,School of Environment,Harbin Institute of Technology,Harbin,150090,China
2.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.Begbroke Science Park,Department of Engineering Science,University of Oxford,Oxford,Woodstock Road,OX5 1PF,United Kingdom
4.Department of Chemical Engineering,National Taiwan University,Taipei,106,Taiwan
5.Department of Chemical Engineering,National Taiwan University of Science and Technology,Taipei,106,Taiwan

Wang，Yi,Zhang，Zi Feng,Xu，Xi Jun,et al. Effective removal of methyl siloxane from water by sewage activated sludge microbes: biodegradation behavior and characteristics of microbial community[J]. Bioresource Technology Reports,2019,7.

Wang，Yi.,Zhang，Zi Feng.,Xu，Xi Jun.,Chen，Chuan.,Xu，Jia Bao.,...&Lee，Duu Jong.(2019).Effective removal of methyl siloxane from water by sewage activated sludge microbes: biodegradation behavior and characteristics of microbial community.Bioresource Technology Reports,7.

Wang，Yi,et al."Effective removal of methyl siloxane from water by sewage activated sludge microbes: biodegradation behavior and characteristics of microbial community".Bioresource Technology Reports 7(2019).