PMID- 31136937
OWN - NLM
STAT- MEDLINE
DCOM- 20190924
LR  - 20221207
IS  - 1095-8630 (Electronic)
IS  - 0301-4797 (Linking)
VI  - 245
DP  - 2019 Sep 1
TI  - Feasibility study of vertical flow constructed wetland for tertiary treatment of 
      nanosilver wastewater and temporal-spatial distribution of pollutants and 
      microbial community.
PG  - 28-36
LID - S0301-4797(19)30595-X [pii]
LID - 10.1016/j.jenvman.2019.04.128 [doi]
AB  - Silver nanoparticles (AgNPs) have the potential to cause negative effects on 
      nutrient removal in constructed wetlands (CWs), further leading to the 
      deterioration of the water. The current work aimed to investigate the feasibility 
      of vertical flow CW (VFCW) for tertiary treatment of AgNPs wastewater, 
      temporal-spatial distribution of pollutants, and microbial community after 
      450-day exposure. Results reveal that the effluent of VFCW could still meet the 
      discharge limits except the slightly excessive concentration of phosphorus 
      (>0.5 mg/L) from day 390, with the average removal efficiencies of 83%, 61%, 42%, 
      70%, and 66% for the chemical oxygen demand, total nitrogen, ammonia nitrogen, 
      total phosphorus, and soluble orthophosphate during 450 days, respectively. 
      Results show that AgNPs removal was relatively stable over time, up to 96%. The 
      temporal-spatial analysis reveals that all contaminants were mainly retained in 
      the soil layer. The Ag concentrations in the upper soil layer and plant roots 
      were higher than that in the lower soil layer and plant stems and leaves, 
      respectively. Microbial sequencing analysis reveals the significant differences 
      in the microbial community at different depths on day 450, with the dominant 
      phyla of Proteobacteria, Acidobacteria, Chloroflexi and Bacteroidetes, and 
      dominant genera of Halomonas and Pseudomonas. These results provide much needed 
      knowledge for the implementation of ecological technologies for AgNPs and 
      nutrient removal simultaneously.
CI  - Copyright (c) 2019 Elsevier Ltd. All rights reserved.
FAU - Huang, Juan
AU  - Huang J
AD  - Dept. of Municipal Engineering, School of Civil Engineering, Southeast 
      University, Nanjing, 210096, China. Electronic address: 101010942@seu.edu.cn.
FAU - Yan, Chunni
AU  - Yan C
AD  - Dept. of Municipal Engineering, School of Civil Engineering, Southeast 
      University, Nanjing, 210096, China.
FAU - Liu, Jialiang
AU  - Liu J
AD  - Dept. of Municipal Engineering, School of Civil Engineering, Southeast 
      University, Nanjing, 210096, China.
FAU - Guan, Wenzhu
AU  - Guan W
AD  - Dept. of Municipal Engineering, School of Civil Engineering, Southeast 
      University, Nanjing, 210096, China.
FAU - Singh, Rajendra Prasad
AU  - Singh RP
AD  - Dept. of Municipal Engineering, School of Civil Engineering, Southeast 
      University, Nanjing, 210096, China.
FAU - Cao, Chong
AU  - Cao C
AD  - Dept. of Municipal Engineering, School of Civil Engineering, Southeast 
      University, Nanjing, 210096, China.
FAU - Xiao, Jun
AU  - Xiao J
AD  - Dept. of Municipal Engineering, School of Civil Engineering, Southeast 
      University, Nanjing, 210096, China.
LA  - eng
PT  - Journal Article
DEP - 20190525
PL  - England
TA  - J Environ Manage
JT  - Journal of environmental management
JID - 0401664
RN  - 0 (Environmental Pollutants)
RN  - 0 (Waste Water)
RN  - 3M4G523W1G (Silver)
RN  - N762921K75 (Nitrogen)
SB  - IM
MH  - *Environmental Pollutants
MH  - Feasibility Studies
MH  - *Metal Nanoparticles
MH  - *Microbiota
MH  - Nitrogen
MH  - Silver
MH  - Waste Disposal, Fluid
MH  - Wastewater
MH  - Wetlands
OTO - NOTNLM
OT  - Microbial community
OT  - Silver nanoparticles
OT  - Temporal-spatial distribution
OT  - Tertiary treatment
OT  - Vertical flow constructed wetland
EDAT- 2019/05/29 06:00
MHDA- 2019/09/26 06:00
CRDT- 2019/05/29 06:00
PHST- 2019/01/04 00:00 [received]
PHST- 2019/04/23 00:00 [revised]
PHST- 2019/04/30 00:00 [accepted]
PHST- 2019/05/29 06:00 [pubmed]
PHST- 2019/09/26 06:00 [medline]
PHST- 2019/05/29 06:00 [entrez]
AID - S0301-4797(19)30595-X [pii]
AID - 10.1016/j.jenvman.2019.04.128 [doi]
PST - ppublish
SO  - J Environ Manage. 2019 Sep 1;245:28-36. doi: 10.1016/j.jenvman.2019.04.128. Epub 
      2019 May 25.