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Removal of disinfection by-product precursors by Al-based coagulants: A comparative study on coagulation performance
Wang, Pin; Ding, Shunke; An, Guangyu; Qu, Ruixin; Liu, Xiaoyu; Fang, Chao; Chu, Wenhai
2021-12-15
Source PublicationJOURNAL OF HAZARDOUS MATERIALS
ISSN0043-1354
Volume204Pages:-
AbstractLarge water diversion projects are important constructions for reallocation of human-essential water resources. Deciphering microbiota dynamics and assembly mechanisms underlying canal water ecosystem services especially during long-distance diversion is a prerequisite for water quality monitoring, biohazard warning and sustainable management. Using a 1432-km canal of the South-to-North Water Diversion Projects as a model system, we answer three central questions: how bacterial and micro-eukaryotic communities spatio-temporally develop, how much ecological stochasticity contributes to microbiota assembly, and which immigrating populations better survive and navigate across the canal. We applied quantitative ribosomal RNA gene sequence analyses to investigate canal water microbial communities sampled over a year, as well as null model- and neutral model-based approaches to disentangle the microbiota assembly processes. Our results showed clear microbiota dynamics in community composition driven by seasonality more than geographic location, and seasonally dependent influence of environmental parameters. Overall, bacterial community was largely shaped by deterministic processes, whereas stochasticity dominated micro-eukaryotic community assembly. We defined a local growth factor (LGF) and demonstrated its innovative use to quantitatively infer microbial proliferation, unraveling taxonomically dependent population response to local environmental selection across canal sections. Using LGF as a quantitative indicator of immigrating capacities, we also found that most micro-eukaryotic populations (82%) from the source water sustained growth in the canal and better acclimated to the hydrodynamical water environment than bacteria (67%). Taxa inferred to largely propagate include Limnohabitans sp. and Cryptophyceae, potentially contributing to water auto-purification. Combined, our work poses first and unique insights into the microbiota assembly patterns and dynamics in the world's largest water diversion canal, providing important ecological knowledge for long-term sustainable water quality maintenance in such a giant engineered system.
Department环境水质学国家重点实验室
KeywordEngineered system Bacterial community Micro-eukaryote Stochastic assembly Deterministic assembly Population growth
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/46862
Collection环境水质学国家重点实验室
Affiliation1.Tongji Univ, Coll Environm Sci & Engn, State Key Lab Pollut Control & Resource Reuse, Shanghai 200092, Peoples R China
2.Tongji Univ, Key Lab Yangtze River Water Environm, Minist Educ, Shanghai 200092, Peoples R China
3.Tongji Univ, Int Joint Res Ctr Sustainable Urban Water Syst, Shanghai 200092, Peoples R China
4.Chinese Acad Sci, Res Ctr Ecoenvironm Sci, State Key Lab Environm Aquat Chem, Beijing 100085, Peoples R China
Recommended Citation
GB/T 7714
Wang, Pin,Ding, Shunke,An, Guangyu,et al. Removal of disinfection by-product precursors by Al-based coagulants: A comparative study on coagulation performance[J]. JOURNAL OF HAZARDOUS MATERIALS,2021,204:-.
APA Wang, Pin.,Ding, Shunke.,An, Guangyu.,Qu, Ruixin.,Liu, Xiaoyu.,...&Chu, Wenhai.(2021).Removal of disinfection by-product precursors by Al-based coagulants: A comparative study on coagulation performance.JOURNAL OF HAZARDOUS MATERIALS,204,-.
MLA Wang, Pin,et al."Removal of disinfection by-product precursors by Al-based coagulants: A comparative study on coagulation performance".JOURNAL OF HAZARDOUS MATERIALS 204(2021):-.
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