Effect of temperature on heavy metal(loid) deportment during pyrolysis of Avicennia marina biomass obtained from phytoremediation

Jing He, Vladimir Strezov, Tao Kan, Haftom Weldekidan, Samuel Asumadu-Sarkodie, Ravinder Kumar

Research output: Contribution to journalArticleResearchpeer-review

Abstract

Slow pyrolysis of heavy-metal(loid)-contaminated Avicennia marina biomass obtained from phytoremediation was conducted to investigate the deportment of 12 heavy metal(loid)s in pyrolysis products (biochar, bio-oil, gas) at temperatures from 300 to 800 °C. The results indicated that different heavy metal(loid)s showed diverse volatilities, while all elements tended to transform into volatile products with the increase of pyrolysis temperature. Cd was found highly volatile, while Fe and Cu were non-volatile elements. The leaching analysis of biochars showed that pyrolysis was effective in reducing the mobility and bioavailability of the heavy metal(loid)s in biochars. Moreover, the risk assessment of biochars showed that the biochars derived from polluted biomass can be used as a potential soil amendment. Considering the energy consumption and risk of contaminant emission, pyrolysis temperatures of 400 to 500 °C were considered to be the optimum option for pyrolysis of this biomass.
LanguageEnglish
Pages214-222
Number of pages9
JournalBioresource Technology
Volume278
Early online date23 Jan 2019
DOIs
Publication statusPublished - Apr 2019

Fingerprint

Marinas
phytoremediation
Heavy Metals
marina
pyrolysis
Heavy metals
Biomass
Pyrolysis
heavy metal
biomass
temperature
Temperature
soil amendment
Gas oils
Risk assessment
Leaching
bioavailability
effect
risk assessment
transform

Keywords

  • Phytoremediation
  • Metal(loid) contamination
  • Pyrolysis
  • Biomass
  • Heavy metal(loid) deportment

Cite this

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title = "Effect of temperature on heavy metal(loid) deportment during pyrolysis of Avicennia marina biomass obtained from phytoremediation",
abstract = "Slow pyrolysis of heavy-metal(loid)-contaminated Avicennia marina biomass obtained from phytoremediation was conducted to investigate the deportment of 12 heavy metal(loid)s in pyrolysis products (biochar, bio-oil, gas) at temperatures from 300 to 800 °C. The results indicated that different heavy metal(loid)s showed diverse volatilities, while all elements tended to transform into volatile products with the increase of pyrolysis temperature. Cd was found highly volatile, while Fe and Cu were non-volatile elements. The leaching analysis of biochars showed that pyrolysis was effective in reducing the mobility and bioavailability of the heavy metal(loid)s in biochars. Moreover, the risk assessment of biochars showed that the biochars derived from polluted biomass can be used as a potential soil amendment. Considering the energy consumption and risk of contaminant emission, pyrolysis temperatures of 400 to 500 °C were considered to be the optimum option for pyrolysis of this biomass.",
keywords = "Phytoremediation, Metal(loid) contamination, Pyrolysis, Biomass, Heavy metal(loid) deportment",
author = "Jing He and Vladimir Strezov and Tao Kan and Haftom Weldekidan and Samuel Asumadu-Sarkodie and Ravinder Kumar",
year = "2019",
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Effect of temperature on heavy metal(loid) deportment during pyrolysis of Avicennia marina biomass obtained from phytoremediation. / He, Jing; Strezov, Vladimir; Kan, Tao; Weldekidan, Haftom; Asumadu-Sarkodie, Samuel; Kumar, Ravinder.

In: Bioresource Technology, Vol. 278, 04.2019, p. 214-222.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Asumadu-Sarkodie, Samuel

AU - Kumar, Ravinder

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