PMID- 36030876 OWN - NLM STAT- MEDLINE DCOM- 20230331 LR - 20230331 IS - 1879-1026 (Electronic) IS - 0048-9697 (Linking) VI - 851 IP - Pt 2 DP - 2022 Dec 10 TI - Role of surface physicochemical properties of pipe materials on bio-clogging in leachate collection systems from a thermodynamic perspective. PG - 158263 LID - S0048-9697(22)05362-1 [pii] LID - 10.1016/j.scitotenv.2022.158263 [doi] AB - Bio-clogging in pipes poses a significant threat to the operation of leachate collection systems. Bio-clogging formation is influenced by the pipe materials. However, the relationship between bio-clogging and the physicochemical properties of different pipe materials has not been clarified yet, especially from a thermodynamic aspect. In this study, the dynamic bio-clogging processes in pipes of different materials (high-density polyethylene (HDPE), polyvinyl chloride (PVC), polypropylene (PP), and polyethylene (PE)) were compared, and their correlation with the physicochemical properties was investigated. Results showed that the bio-clogging in HDPE and PVC pipes was more severe than that in PP and PE pipes. In bio-clogging development, the predominant factor changed from the surface roughness to the electron donator parameter (gamma(-)). In the initial phase, the most severe bio-clogging was observed in the HDPE pipe, which exhibited the highest roughness (432 +/- 76 nm). In the later phase, the highest gamma(-) (2.2 mJ/m(2)) and protein content (2623.1 +/- 33.2 mug/cm(2)) were observed in the PVC simultaneously. Moreover, the interaction energy indicated that the bacteria could irreversibly and reversibly adhere to the HDPE, whereas irreversible adhesion was observed in the PVC, PP, and PE cases. The findings clarify the thermodynamic mechanism underlying bio-clogging behaviors and provide novel insights into the bio-clogging behaviors in pipes of different materials, which can facilitate the development of effective bio-clogging control strategies. CI - Copyright (c) 2022 Elsevier B.V. All rights reserved. FAU - Wang, Qian AU - Wang Q AD - School of Environment and Energy, Peking University Shenzhen Graduate School, University Town, Xili, Nanshan District, Shenzhen 518055, PR China. FAU - Miao, Qianming AU - Miao Q AD - School of Environment and Energy, Peking University Shenzhen Graduate School, University Town, Xili, Nanshan District, Shenzhen 518055, PR China. FAU - Wang, Xinwei AU - Wang X AD - School of Advanced Materials, Peking University Shenzhen Graduate School, University Town, Xili, Nanshan District, Shenzhen 518055, PR China. FAU - Wang, Tong AU - Wang T AD - School of Environment and Energy, Peking University Shenzhen Graduate School, University Town, Xili, Nanshan District, Shenzhen 518055, PR China. FAU - Xu, Qiyong AU - Xu Q AD - School of Environment and Energy, Peking University Shenzhen Graduate School, University Town, Xili, Nanshan District, Shenzhen 518055, PR China. Electronic address: qiyongxu@pkusz.edu.cn. LA - eng PT - Journal Article DEP - 20220827 PL - Netherlands TA - Sci Total Environ JT - The Science of the total environment JID - 0330500 RN - 9002-88-4 (Polyethylene) RN - 0 (Polypropylenes) RN - 9002-86-2 (Polyvinyl Chloride) SB - IM MH - Polyethylene/chemistry MH - Polypropylenes MH - *Polyvinyl Chloride/chemistry MH - Thermodynamics MH - *Water Supply OTO - NOTNLM OT - Bio-clogging OT - Interaction energy OT - Leachate OT - Pipe materials OT - Thermodynamic analysis COIS- Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. EDAT- 2022/08/29 06:00 MHDA- 2022/10/21 06:00 CRDT- 2022/08/28 19:33 PHST- 2022/07/13 00:00 [received] PHST- 2022/08/16 00:00 [revised] PHST- 2022/08/20 00:00 [accepted] PHST- 2022/08/29 06:00 [pubmed] PHST- 2022/10/21 06:00 [medline] PHST- 2022/08/28 19:33 [entrez] AID - S0048-9697(22)05362-1 [pii] AID - 10.1016/j.scitotenv.2022.158263 [doi] PST - ppublish SO - Sci Total Environ. 2022 Dec 10;851(Pt 2):158263. doi: 10.1016/j.scitotenv.2022.158263. Epub 2022 Aug 27.