Characteristics of biochars derived from fruit tree pruning wastes and their effects on lead adsorption

Jong Hwan Park, Yong Sik Ok, Seong Heon Kim, Se Won Kang, Ju Sik Cho, Jong Soo Heo, Ronald D. Delaune, Dong Cheol Seo

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The aim of this study was to evaluate the biochar characteristics derived from fruit tree pruning wastes (FTPW) and their effects on lead (Pb) adsorption. Based on results from Pb adsorption, surface area, and phosphorus content, the optimum pyrolysis temperature was 600 °C for Pb adsorption capacity. Using the Freundlich isotherm, the Pb adsorption capacity (K) of biochar obtained from various FTPW decreased in the order of pear (3.8001) ≫ persimmon (2.3977) ≥ apple (2.1968). Based on the Langmuir adsorption isotherm, the maximum Pb adsorption capacities (a; mg g−1) of biochar obtained from different FTPW were in the following order: pear (26.2) ≫ persimmon (19.9) ≥ apple (17.7). The maximum Pb adsorption capacity of the pruned pear tree waste biochar was greater than the other FTPW biochars. Pruned apple tree waste biochar had the lowest Pb adsorption capacity among the tested FTPW biochars. The positive correlation between the Langmuir maximum adsorption capacity (LM) values of the biochars and their phosphorus content and surface area indicated difference in adsorption capacity. However, adsorption capacity of the biochar from all FTPW studied could be used for removing Pb and other metal from wastewater.

Original languageEnglish
Pages (from-to)751-760
Number of pages10
JournalJournal of the Korean Society for Applied Biological Chemistry
Volume58
Issue number5
DOIs
Publication statusPublished - 2015 Oct 28
Externally publishedYes

Fingerprint

Fruits
Adsorption
Fruit
Pyrus
Malus
Diospyros
Phosphorus
biochar
Lead
Adsorption isotherms
Waste Water
Isotherms
Wastewater
Pyrolysis
Metals
Temperature

Keywords

  • Biochar
  • Freundlich isotherm
  • Fruit tree pruning waste
  • Langmuir isotherm
  • Lead adsorption

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)
  • Organic Chemistry

Cite this

Characteristics of biochars derived from fruit tree pruning wastes and their effects on lead adsorption. / Park, Jong Hwan; Ok, Yong Sik; Kim, Seong Heon; Kang, Se Won; Cho, Ju Sik; Heo, Jong Soo; Delaune, Ronald D.; Seo, Dong Cheol.

In: Journal of the Korean Society for Applied Biological Chemistry, Vol. 58, No. 5, 28.10.2015, p. 751-760.

Research output: Contribution to journalArticle

Park, Jong Hwan ; Ok, Yong Sik ; Kim, Seong Heon ; Kang, Se Won ; Cho, Ju Sik ; Heo, Jong Soo ; Delaune, Ronald D. ; Seo, Dong Cheol. / Characteristics of biochars derived from fruit tree pruning wastes and their effects on lead adsorption. In: Journal of the Korean Society for Applied Biological Chemistry. 2015 ; Vol. 58, No. 5. pp. 751-760.
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AB - The aim of this study was to evaluate the biochar characteristics derived from fruit tree pruning wastes (FTPW) and their effects on lead (Pb) adsorption. Based on results from Pb adsorption, surface area, and phosphorus content, the optimum pyrolysis temperature was 600 °C for Pb adsorption capacity. Using the Freundlich isotherm, the Pb adsorption capacity (K) of biochar obtained from various FTPW decreased in the order of pear (3.8001) ≫ persimmon (2.3977) ≥ apple (2.1968). Based on the Langmuir adsorption isotherm, the maximum Pb adsorption capacities (a; mg g−1) of biochar obtained from different FTPW were in the following order: pear (26.2) ≫ persimmon (19.9) ≥ apple (17.7). The maximum Pb adsorption capacity of the pruned pear tree waste biochar was greater than the other FTPW biochars. Pruned apple tree waste biochar had the lowest Pb adsorption capacity among the tested FTPW biochars. The positive correlation between the Langmuir maximum adsorption capacity (LM) values of the biochars and their phosphorus content and surface area indicated difference in adsorption capacity. However, adsorption capacity of the biochar from all FTPW studied could be used for removing Pb and other metal from wastewater.

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