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Authors Gao, F; Yang, ZH; Li, C; Jin, WH
Author Full Name Gao, Feng; Yang, Zhao-Hui; Li, Chen; Jin, Wei-Hong
Title Saline domestic sewage treatment in constructed wetlands: study of plant selection and treatment characteristics
Source DESALINATION AND WATER TREATMENT
Language English
Document Type Article
Author Keywords Pollutant removal; Saline sewage; Salt-tolerant plant; Enzyme activity; Constructed wetland
Keywords Plus WASTE-WATER TREATMENT; MACROPHYTES; SYSTEMS; SOILS; MUNICIPAL; REMOVAL; QUALITY
Abstract A series of investigations was conducted to treat saline domestic sewage using constructed wetlands. Twelve emergent plant species were planted in experimental units and fed with saline domestic sewage. All species were classified into three clusters using cluster analysis based on the average values of relative growth rate, nutrient uptake, root biomass and activity. The species of Cluster I, including Canna indica, Phragmites australis and Scirpus validus, had strong potential for the purification. The above plants were employed again to treat saline domestic sewage under different influent salinities concentrations. For the influent salinity of 0.5, 1.0 and 1.5%, average treatment performances of planted units were found to be 61.5-70.5% for COD, 59.3-68.4% for [GRAPHICS] -N, 61.9-70.4% for TN and 40.4-47.3% for TP. With increasing influent salinity to 2.0%, the removal efficiencies were dropped significantly. It was similar to the change of the soil enzyme activity in the experiment units. Activities of urease and cellulase declined significantly when influent salinity increased to 2.0%. The lower soil enzyme activity in the treatments receiving wastewater at 2.0% indicated that saline domestic sewage had an adverse effect on microbial activities.
Author Address [Gao, Feng; Yang, Zhao-Hui] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China; [Gao, Feng; Li, Chen; Jin, Wei-Hong] Zhejiang Ocean Univ, Coll Marine Sci, Zhoushan 316000, Peoples R China; [Yang, Zhao-Hui] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Hunan, Peoples R China
Reprint Address Yang, ZH (corresponding author), Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China.
E-mail Address yzh@hnu.cn
ResearcherID Number zhaohui, yang/R-1662-2017
Funding Agency and Grant Number Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [50908214, 30970105, 51078131]; Scientific and Technological Project of Zhejiang Province in China [2009C33028]
Funding Text The authors are grateful for the financial support provided by the Natural Science Foundation of China (No. 50908214, 30970105 and 51078131) and the Scientific and Technological Project of Zhejiang Province in China (2009C33028).
Times Cited 18
Total Times Cited Count (WoS, BCI, and CSCD) 19
Publisher TAYLOR & FRANCIS INC
Publisher City PHILADELPHIA
Publisher Address 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
ISSN 1944-3994
29-Character Source Abbreviation DESALIN WATER TREAT
ISO Source Abbreviation Desalin. Water Treat.
Publication Date JAN 16
Year Published 2015
Volume 53
Issue 3
Beginning Page 593
Ending Page 602
Digital Object Identifier (DOI) 10.1080/19443994.2013.848673
Page Count 10
Web of Science Category Engineering, Chemical; Water Resources
Subject Category Engineering; Water Resources
Document Delivery Number AY6PL
Unique Article Identifier WOS:000347688000004
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