PMID- 33032216 OWN - NLM STAT- MEDLINE DCOM- 20201222 LR - 20201222 IS - 1879-1298 (Electronic) IS - 0045-6535 (Linking) VI - 264 IP - Pt 1 DP - 2021 Feb TI - Effect of polymeric support material on biofilm development, bacterial population, and wastewater treatment performance in anaerobic fixed-film systems. PG - 128477 LID - S0045-6535(20)32672-2 [pii] LID - 10.1016/j.chemosphere.2020.128477 [doi] AB - This study evaluated the performance of high-density polyethylene (HDPE), acrylonitrile butadiene styrene (ABS), polycarbonate (PC), polyvinylchloride (PVC), polypropylene (PP), polyvinylidene fluoride (PVDF) and polymethyl methacrylate (acrylic) when used as a support media in anaerobic attached-growth wastewater treatment systems. A combination of physical and chemical (total solids, protein, phosphorus, ammonia, chemical oxygen demand) methods, environmental scanning electron microscopy (ESEM) and Live/Dead viability assay) and genetic sequencing over a period of 81 days was used to provide an in-depth understanding of the impact of different polymer materials on biofilm formation, bacteria population, and wastewater treatment performance. The results showed that hydrophobic polymeric materials (i.e., PP and PVDF) promoted initial cell adhesion and biofilm formation (<16 days) better than the hydrophilic (i.e., ABS and HDPE) polymeric materials. However, under longer-term and steady-state operation (after 81 days), the hydrophilic materials demonstrated larger mature biofilm quantities and better wastewater treatment performance. The sequencing data showed biofilm bacterial community structures of the ABS and HDPE to be significantly different compared to the other polymeric materials tested. The data showed a positive correlation as well between the phyla present on the ABS and HDPE and COD removal. These results suggest that the type of polymeric material play an important role in biofilm development, bacterial population diversity, and wastewater treatment performance for anaerobic fixed-film systems, and ABS and HDPE performed better than the widely used PVC in the industry. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Zhou, Yuren AU - Zhou Y AD - Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa ON, K1S5B6, Canada. Electronic address: yuren.zhou@carleton.ca. FAU - Kiely, Patrick D AU - Kiely PD AD - Island Water Technologies, B-577, 23 Brook Street, Montague, PEI, C0A1R0, Canada. Electronic address: pkiely@islandwatertech.com. FAU - Kibbee, Richard AU - Kibbee R AD - Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa ON, K1S5B6, Canada. Electronic address: Richard.kibbee@carleton.ca. FAU - Ormeci, Banu AU - Ormeci B AD - Department of Civil and Environmental Engineering, Carleton University, 1125 Colonel By Drive, Ottawa ON, K1S5B6, Canada. Electronic address: banu.ormeci@carleton.ca. LA - eng PT - Journal Article DEP - 20200930 PL - England TA - Chemosphere JT - Chemosphere JID - 0320657 RN - 27YLU75U4W (Phosphorus) SB - IM MH - Anaerobiosis MH - Bacteria/genetics MH - *Biofilms MH - Bioreactors MH - Phosphorus MH - Waste Disposal, Fluid MH - *Water Purification OTO - NOTNLM OT - Attachment OT - Biofilm OT - Growth OT - Polymer OT - Support media OT - Wastewater 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- 2020/10/09 06:00 MHDA- 2020/12/23 06:00 CRDT- 2020/10/08 20:19 PHST- 2020/04/11 00:00 [received] PHST- 2020/09/05 00:00 [revised] PHST- 2020/09/27 00:00 [accepted] PHST- 2020/10/09 06:00 [pubmed] PHST- 2020/12/23 06:00 [medline] PHST- 2020/10/08 20:19 [entrez] AID - S0045-6535(20)32672-2 [pii] AID - 10.1016/j.chemosphere.2020.128477 [doi] PST - ppublish SO - Chemosphere. 2021 Feb;264(Pt 1):128477. doi: 10.1016/j.chemosphere.2020.128477. Epub 2020 Sep 30.