A glass house trial to investigate the impact of water treatment sludge and green waste compost to enhance the revegetation of contaminated sites

Biola Kazeem Badmos, Ruben Sakrabani, Richard Lord

Research output: Contribution to journalArticle

Abstract

This study investigated the use of waste amendments (green waste compost and water treatment sludge 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 nutrients status were observed and found 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 green waste compost at 180 t ha−1 and lowest in contaminated soil amended with water treatment sludge 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.
LanguageEnglish
Pages865-876
Number of pages12
JournalArchives of Agronomy and Soil Science
Volume62
Issue number6
Early online date12 Oct 2015
DOIs
Publication statusE-pub ahead of print - 12 Oct 2015

Fingerprint

green waste
revegetation
land restoration
water treatment
sludge
polluted soils
compost
composts
glass
greenhouses
Sinapis alba subsp. alba
Phalaris arundinacea
grass
contaminated soil
trial
soil nutrient
soil nutrients
application rate
soil organic matter
hydrocarbons

Keywords

  • contaminated land
  • green waste compost
  • water treatment sludge
  • reed canary grass
  • white mustard

Cite this

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title = "A glass house trial to investigate the impact of water treatment sludge and green waste compost to enhance the revegetation of contaminated sites",
abstract = "This study investigated the use of waste amendments (green waste compost and water treatment sludge 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 nutrients status were observed and found 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 green waste compost at 180 t ha−1 and lowest in contaminated soil amended with water treatment sludge 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.",
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A glass house trial to investigate the impact of water treatment sludge and green waste compost to enhance the revegetation of contaminated sites. / Badmos, Biola Kazeem; Sakrabani, Ruben; Lord, Richard.

In: Archives of Agronomy and Soil Science, Vol. 62, No. 6, 12.10.2015, p. 865-876.

Research output: Contribution to journalArticle

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AB - This study investigated the use of waste amendments (green waste compost and water treatment sludge 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 nutrients status were observed and found 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 green waste compost at 180 t ha−1 and lowest in contaminated soil amended with water treatment sludge 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.

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