Nutrient removal mechanisms in constructed wetlands and sustainable water management

被引:54
|
作者
Sakadevan, K [1 ]
Bavor, HJ [1 ]
机构
[1] Univ Western Sydney Hawkesbury, Water Res Lab, Ctr Water & Environm Technol, Richmond, NSW 2753, Australia
关键词
D O I
10.1016/S0273-1223(99)00478-3
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Constructed wetland systems are used to treat domestic and industrial wastewater and agricultural runoff. In this field study the influence of hydraulic loading, retention time, water column depth and phosphorus (P) concentrations of influent wastewater on P and nitrogen (N) removal was examined in experimental constructed wetland systems. Five constructed wetlands with a surface area of 150 m(2), were developed in the field. Results showed that P concentrations of water from outlets of all five systems decreased (from as low as 11% decrease for the system which received wastewater with average P concentration of 8.2 mg P L(-1) to as high as 48.9% decrease for the system which received wastewater with average P concentration of 3.58 mg P L(-1)) compared to the influent water. The N concentrations in the outlet water were also decreased in all five systems (from as low as 26.3% decrease to as high as 77.5% decrease) compared to the influent water. The total P and N in the wetland sediment increased in the first year in all five systems but were unchanged at the end of the second year. The study showed that low hydraulic loading and greater retention times positively enhanced removal of P and N from wastewater in constructed wetland systems. (C) 1999 Published by Elsevier Science Ltd on behalf of the IAWQ. All rights reserved.
引用
收藏
页码:121 / 128
页数:8
相关论文
共 50 条
  • [11] Agricultural pollutant removal by constructed wetlands: Implications for water management and design
    Diaz, Francisco J.
    O'Geen, Anthony T.
    Dahlgren, Randy A.
    AGRICULTURAL WATER MANAGEMENT, 2012, 104 : 171 - 183
  • [12] Nutrient removal in constructed microcosm wetlands for treating polluted river water in northern China
    Wu, Haiming
    Zhang, Jian
    Li, Peizhi
    Zhang, Jinyong
    Xie, Huijun
    Zhang, Bo
    ECOLOGICAL ENGINEERING, 2011, 37 (04) : 560 - 568
  • [13] Nutrient removal in vertical subsurface flow constructed wetlands treating eutrophic river water
    Tang, Xianqiang
    Huang, Suiliang
    Scholz, Miklas
    Li, Jinzhong
    INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY, 2011, 91 (7-8) : 727 - 739
  • [14] Inorganic particle accumulation promotes nutrient removal of vertical flow constructed wetlands: Mechanisms and implications
    Liu, Huaqing
    Zhang, Jian
    Yu, Ximing
    Xie, Huijun
    Haggblom, Max
    Liang, Shuang
    Hu, Zhen
    SCIENCE OF THE TOTAL ENVIRONMENT, 2021, 778
  • [15] Constructed Wetlands: A Sustainable Solution for Concentrate Management
    Chakraborti, Rajat K.
    Bays, James S.
    Kaur, Jagjit
    Journal - American Water Works Association, 2022, 114 (09): : 79 - 82
  • [16] Constructed Wetlands: A Sustainable Solution for Concentrate Management
    Chakraborti, Rajat K.
    Bays, James S.
    Kaur, Jagjit
    JOURNAL AWWA, 2022, 114 (09): : 79 - 82
  • [17] Constructed and Floating Wetlands for Sustainable Water Reclamation
    Arslan, Muhammad
    Afzal, Muhammad
    Anjum, Naser A.
    SUSTAINABILITY, 2022, 14 (03)
  • [18] Monitoring of nutrient removal within integrated constructed wetlands (ICW)
    Scholz, Miklas
    Harrington, Rory
    Carroll, Paul
    Mustafa, Atif
    DESALINATION, 2010, 250 (01) : 356 - 360
  • [19] Types of constructed wetlands for wastewater treatment: Their potential for nutrient removal
    Vymazal, J
    TRANSFORMATIONS OF NUTRIENTS IN NATURAL AND CONSTRUCTED WETLANDS, 2001, : 1 - 93
  • [20] Removal of nutrient and bacteria in pilot-scale constructed wetlands
    Tuncsiper, Bilal
    JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING, 2007, 42 (08): : 1117 - 1124