Treatment of landfill leachate by irrigation of willow coppice - Plant response and treatment efficiency

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Treatment of landfill leachate by irrigation of willow coppice - Plant response and treatment efficiency. / Aronsson, Par; Dahlin, Torleif; Dimitriou, Ioannis.

I: Environmental Pollution, Vol. 158, Nr. 3, 2010, s. 795-804.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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TY - JOUR

T1 - Treatment of landfill leachate by irrigation of willow coppice - Plant response and treatment efficiency

AU - Aronsson, Par

AU - Dahlin, Torleif

AU - Dimitriou, Ioannis

PY - 2010

Y1 - 2010

N2 - Landfill leachates usually need to be treated before discharged. and using soil-plant systems for this has gained substantial interest in Sweden and in the UK A three-year field study was conducted in central Sweden to quantify plant response, treatment efficiency and impact on groundwater quality of landfill leachate irrigation of short-rotation willow coppice (Salix) Two willow varieties were tested and four irrigation regimes in sixteen 400-m(2) plots. The willow plants did not react negatively, despite very high annual loads of nitrogen (<= 2160 kg N/ha), chloride (<= 8600 kg Cl/ha) and other elements. Mean annual growth was 15. 98 and 12.6 tonnes DM/ha during years 1-3 For one of two willow varieties tested. relative leaf length accurately predicted growth rate. Irrigation resulted in elevated groundwater concentrations of all elements applied. Treatment efficiency varied considerably for different elements, but was adequate when moderate loads were applied. (C) 2009 Elsevier Ltd All rights reserved.

AB - Landfill leachates usually need to be treated before discharged. and using soil-plant systems for this has gained substantial interest in Sweden and in the UK A three-year field study was conducted in central Sweden to quantify plant response, treatment efficiency and impact on groundwater quality of landfill leachate irrigation of short-rotation willow coppice (Salix) Two willow varieties were tested and four irrigation regimes in sixteen 400-m(2) plots. The willow plants did not react negatively, despite very high annual loads of nitrogen (<= 2160 kg N/ha), chloride (<= 8600 kg Cl/ha) and other elements. Mean annual growth was 15. 98 and 12.6 tonnes DM/ha during years 1-3 For one of two willow varieties tested. relative leaf length accurately predicted growth rate. Irrigation resulted in elevated groundwater concentrations of all elements applied. Treatment efficiency varied considerably for different elements, but was adequate when moderate loads were applied. (C) 2009 Elsevier Ltd All rights reserved.

KW - Water balance

KW - Heavy metals

KW - Leaching

KW - Nitrogen

KW - Salix

KW - Toxicity

KW - Groundwater

U2 - 10.1016/j.envpol.2009.10.003

DO - 10.1016/j.envpol.2009.10.003

M3 - Article

VL - 158

SP - 795

EP - 804

JO - Environmental Pollution

T2 - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

IS - 3

ER -