Examination of Three Different Organic Waste Biochars as Soil Amendment for Metal-Contaminated Agricultural Soils

Hyuck Soo Kim, Kwon Rae Kim, Yong Sik Ok, Yeon Kyu Lee, Björn Kluge, Gerd Wessolek, Won Il Kim, Kye Hoon Kim

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Abstract The efficiency of biochars (BCs) derived from paper mill sludge (PM-BC), distillery sludge (DS-BC), and pruned branches from roadside trees (PB-BC) for immobilization of selected heavy metals (Cd and Zn) in agricultural soils was examined in the current study. This examination was conducted in order to elucidate whether the recycling of organic wastes could be used as a management option for metal-contaminated agricultural soils. Biochars were applied to contaminated upland soil exceeding the guideline values for Cd (4 mg kg-1) and Zn (300 mg kg-1) in Korea. Both the incubation study and the pot trial with lettuce cultivation were carried out using soil-BCs mixtures at 0, 1, 2, and 5 % (w/w). From the incubation study, it appears that BCs incorporated into the soil induces an increasing soil pH and a significant decline (Cd 36 ∼ 100 %; Zn 54 ∼ 100 %) in the phytoavailable metal pool examined by 1 M NH4NO3 extraction. The PM-BC was most effective in the reduction of Cd and Zn phytoavailability, due to a significantly higher pH and surface area than the DS-BC and PB-BC. Similar results were observed in the pot trial, where the uptake of heavy metals by lettuce greatly declined with PM-BC incorporation (Cd 26 ∼ 71 %; Zn 28 ∼ 45 %). PM-BC enhanced the lettuce growth performance evidenced by the highest yield of lettuce being observed with PM-BC-treated soils at 5 %. This was attributed to retardation of the metal toxic effect induced by a decrease in Cd accumulation, while the increased nutrient elements originated from PM-BC. This present study indicates that paper mill sludge is a great candidate for biochar production that can be utilized as a soil amendment for metal-contaminated agricultural soils.

Original languageEnglish
Article number2556
Pages (from-to)1-11
Number of pages11
JournalWater, Air, and Soil Pollution
Volume226
Issue number9
DOIs
Publication statusPublished - 2015 Aug 6
Externally publishedYes

Fingerprint

soil amendment
agricultural soil
Metals
Soils
metal
sludge
soil
mill
incubation
heavy metal
Heavy Metals
Heavy metals
immobilization
Distilleries
recycling
surface area
organic waste
biochar
Roadsides
Poisons

Keywords

  • Biochar
  • Heavy metal
  • Immobilization
  • Lettuce
  • Organic waste

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Ecological Modelling
  • Water Science and Technology
  • Pollution

Cite this

Examination of Three Different Organic Waste Biochars as Soil Amendment for Metal-Contaminated Agricultural Soils. / Kim, Hyuck Soo; Kim, Kwon Rae; Ok, Yong Sik; Lee, Yeon Kyu; Kluge, Björn; Wessolek, Gerd; Kim, Won Il; Kim, Kye Hoon.

In: Water, Air, and Soil Pollution, Vol. 226, No. 9, 2556, 06.08.2015, p. 1-11.

Research output: Contribution to journalArticle

Kim, Hyuck Soo ; Kim, Kwon Rae ; Ok, Yong Sik ; Lee, Yeon Kyu ; Kluge, Björn ; Wessolek, Gerd ; Kim, Won Il ; Kim, Kye Hoon. / Examination of Three Different Organic Waste Biochars as Soil Amendment for Metal-Contaminated Agricultural Soils. In: Water, Air, and Soil Pollution. 2015 ; Vol. 226, No. 9. pp. 1-11.
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AU - Ok, Yong Sik

AU - Lee, Yeon Kyu

AU - Kluge, Björn

AU - Wessolek, Gerd

AU - Kim, Won Il

AU - Kim, Kye Hoon

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N2 - Abstract The efficiency of biochars (BCs) derived from paper mill sludge (PM-BC), distillery sludge (DS-BC), and pruned branches from roadside trees (PB-BC) for immobilization of selected heavy metals (Cd and Zn) in agricultural soils was examined in the current study. This examination was conducted in order to elucidate whether the recycling of organic wastes could be used as a management option for metal-contaminated agricultural soils. Biochars were applied to contaminated upland soil exceeding the guideline values for Cd (4 mg kg-1) and Zn (300 mg kg-1) in Korea. Both the incubation study and the pot trial with lettuce cultivation were carried out using soil-BCs mixtures at 0, 1, 2, and 5 % (w/w). From the incubation study, it appears that BCs incorporated into the soil induces an increasing soil pH and a significant decline (Cd 36 ∼ 100 %; Zn 54 ∼ 100 %) in the phytoavailable metal pool examined by 1 M NH4NO3 extraction. The PM-BC was most effective in the reduction of Cd and Zn phytoavailability, due to a significantly higher pH and surface area than the DS-BC and PB-BC. Similar results were observed in the pot trial, where the uptake of heavy metals by lettuce greatly declined with PM-BC incorporation (Cd 26 ∼ 71 %; Zn 28 ∼ 45 %). PM-BC enhanced the lettuce growth performance evidenced by the highest yield of lettuce being observed with PM-BC-treated soils at 5 %. This was attributed to retardation of the metal toxic effect induced by a decrease in Cd accumulation, while the increased nutrient elements originated from PM-BC. This present study indicates that paper mill sludge is a great candidate for biochar production that can be utilized as a soil amendment for metal-contaminated agricultural soils.

AB - Abstract The efficiency of biochars (BCs) derived from paper mill sludge (PM-BC), distillery sludge (DS-BC), and pruned branches from roadside trees (PB-BC) for immobilization of selected heavy metals (Cd and Zn) in agricultural soils was examined in the current study. This examination was conducted in order to elucidate whether the recycling of organic wastes could be used as a management option for metal-contaminated agricultural soils. Biochars were applied to contaminated upland soil exceeding the guideline values for Cd (4 mg kg-1) and Zn (300 mg kg-1) in Korea. Both the incubation study and the pot trial with lettuce cultivation were carried out using soil-BCs mixtures at 0, 1, 2, and 5 % (w/w). From the incubation study, it appears that BCs incorporated into the soil induces an increasing soil pH and a significant decline (Cd 36 ∼ 100 %; Zn 54 ∼ 100 %) in the phytoavailable metal pool examined by 1 M NH4NO3 extraction. The PM-BC was most effective in the reduction of Cd and Zn phytoavailability, due to a significantly higher pH and surface area than the DS-BC and PB-BC. Similar results were observed in the pot trial, where the uptake of heavy metals by lettuce greatly declined with PM-BC incorporation (Cd 26 ∼ 71 %; Zn 28 ∼ 45 %). PM-BC enhanced the lettuce growth performance evidenced by the highest yield of lettuce being observed with PM-BC-treated soils at 5 %. This was attributed to retardation of the metal toxic effect induced by a decrease in Cd accumulation, while the increased nutrient elements originated from PM-BC. This present study indicates that paper mill sludge is a great candidate for biochar production that can be utilized as a soil amendment for metal-contaminated agricultural soils.

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KW - Heavy metal

KW - Immobilization

KW - Lettuce

KW - Organic waste

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