TY - JOUR
T1 - A glass house trial to investigate the impact of water treatment sludge and green waste compost to enhance the revegetation of contaminated sites
AU - Badmos, Biola Kazeem
AU - Sakrabani, Ruben
AU - Lord, Richard
N1 - Publisher Copyright:
© 2015 Taylor & Francis.
PY - 2015/10/11
Y1 - 2015/10/11
N2 - This study investigated the use of waste amendments (green waste compost (GWC) and water treatment sludge (WTS) cake) in improving the nutrient and revegetation status of contaminated soil obtained from a former industrial site that has heavy metal and hydrocarbon contamination. The waste amendments were mixed with the contaminated soil at application rates equivalent to 90 and 180 t ha− 1 (wet weight) and placed in plastic pots. The unamended soil serves as the control. Reed canary grass and white mustard were allowed to grow on the amended and unamended contaminated soil in the glass house. After a 30-day growth period, soil nutrient status was observed and was found to be higher in the amended contaminated soil than the control. In the amended soil, organic matter, total nitrogen, total potassium and soil nitrate were highest in contaminated soil amended with GWC at 180 t ha− 1 and lowest in contaminated soil amended with WTS cake at 90 t ha− 1. Above-ground dry mass of reed canary grass and white mustard grown on amended contaminated soil increased by 120-222% and 130-337%, respectively, as compared to the control, showing that improved fertility of contaminated soils thereafter, enhanced revegetation.
AB - This study investigated the use of waste amendments (green waste compost (GWC) and water treatment sludge (WTS) cake) in improving the nutrient and revegetation status of contaminated soil obtained from a former industrial site that has heavy metal and hydrocarbon contamination. The waste amendments were mixed with the contaminated soil at application rates equivalent to 90 and 180 t ha− 1 (wet weight) and placed in plastic pots. The unamended soil serves as the control. Reed canary grass and white mustard were allowed to grow on the amended and unamended contaminated soil in the glass house. After a 30-day growth period, soil nutrient status was observed and was found to be higher in the amended contaminated soil than the control. In the amended soil, organic matter, total nitrogen, total potassium and soil nitrate were highest in contaminated soil amended with GWC at 180 t ha− 1 and lowest in contaminated soil amended with WTS cake at 90 t ha− 1. Above-ground dry mass of reed canary grass and white mustard grown on amended contaminated soil increased by 120-222% and 130-337%, respectively, as compared to the control, showing that improved fertility of contaminated soils thereafter, enhanced revegetation.
UR - http://www.scopus.com/inward/record.url?scp=84945208331&partnerID=8YFLogxK
U2 - 10.1080/03650340.2015.1093622
DO - 10.1080/03650340.2015.1093622
M3 - Article
AN - SCOPUS:84945208331
SN - 0365-0340
VL - 62
SP - 865
EP - 876
JO - Archives of Agronomy and Soil Science
JF - Archives of Agronomy and Soil Science
IS - 6
ER -