Engineered biochar derived from eggshell-treated biomass for removal of aqueous lead

Hongyu Wang; Bin Gao; June Fang; Yong Sik Ok; Yingwen Xue; Kai Yang; Xinde Cao

doi:10.1016/j.ecoleng.2017.06.029

Engineered biochar derived from eggshell-treated biomass for removal of aqueous lead

Hongyu Wang, Bin Gao, June Fang, Yong Sik Ok, Yingwen Xue, Kai Yang, Xinde Cao

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

Engineered biochars were prepared by slow pyrolysis of three types of biomass pretreated with eggshell waste. The resulting biochars were composite materials with eggshell particles on carbon surface within the pore networks, which were confirmed by various characterization tools. The engineered biochars showed relatively fast adsorption kinetics to Pb²⁺ aqueous solutions. In addition, adsorption isotherms showed that the Langmuir maximum Pb²⁺ adsorption capacities of the engineered biochars (103-261mg/g) were higher than those of the pristine biochars (32.9-56.0mg/g). The adsorption of Pb²⁺ onto the biochars were affected by adsorbent dosage, initial solution pH, and ionic strength. Findings from this work indicated that the engineered biochar from eggshell-treated biochar can be used as an effective agent for soil and water remediation and conservation.

Original language	English
Journal	Ecological Engineering
DOIs	https://doi.org/10.1016/j.ecoleng.2017.06.029
Publication status	Accepted/In press - 2017 Jan 1
Externally published	Yes

Keywords

Biosorption
Conservation
Designer biochar
Heavy metal
Remediation

ASJC Scopus subject areas

Environmental Engineering
Nature and Landscape Conservation
Management, Monitoring, Policy and Law

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title = "Engineered biochar derived from eggshell-treated biomass for removal of aqueous lead",

abstract = "Engineered biochars were prepared by slow pyrolysis of three types of biomass pretreated with eggshell waste. The resulting biochars were composite materials with eggshell particles on carbon surface within the pore networks, which were confirmed by various characterization tools. The engineered biochars showed relatively fast adsorption kinetics to Pb2+ aqueous solutions. In addition, adsorption isotherms showed that the Langmuir maximum Pb2+ adsorption capacities of the engineered biochars (103-261mg/g) were higher than those of the pristine biochars (32.9-56.0mg/g). The adsorption of Pb2+ onto the biochars were affected by adsorbent dosage, initial solution pH, and ionic strength. Findings from this work indicated that the engineered biochar from eggshell-treated biochar can be used as an effective agent for soil and water remediation and conservation.",

keywords = "Biosorption, Conservation, Designer biochar, Heavy metal, Remediation",

author = "Hongyu Wang and Bin Gao and June Fang and Ok, {Yong Sik} and Yingwen Xue and Kai Yang and Xinde Cao",

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T1 - Engineered biochar derived from eggshell-treated biomass for removal of aqueous lead

AU - Wang, Hongyu

AU - Gao, Bin

AU - Fang, June

AU - Ok, Yong Sik

AU - Xue, Yingwen

AU - Yang, Kai

AU - Cao, Xinde

PY - 2017/1/1

Y1 - 2017/1/1

N2 - Engineered biochars were prepared by slow pyrolysis of three types of biomass pretreated with eggshell waste. The resulting biochars were composite materials with eggshell particles on carbon surface within the pore networks, which were confirmed by various characterization tools. The engineered biochars showed relatively fast adsorption kinetics to Pb2+ aqueous solutions. In addition, adsorption isotherms showed that the Langmuir maximum Pb2+ adsorption capacities of the engineered biochars (103-261mg/g) were higher than those of the pristine biochars (32.9-56.0mg/g). The adsorption of Pb2+ onto the biochars were affected by adsorbent dosage, initial solution pH, and ionic strength. Findings from this work indicated that the engineered biochar from eggshell-treated biochar can be used as an effective agent for soil and water remediation and conservation.

AB - Engineered biochars were prepared by slow pyrolysis of three types of biomass pretreated with eggshell waste. The resulting biochars were composite materials with eggshell particles on carbon surface within the pore networks, which were confirmed by various characterization tools. The engineered biochars showed relatively fast adsorption kinetics to Pb2+ aqueous solutions. In addition, adsorption isotherms showed that the Langmuir maximum Pb2+ adsorption capacities of the engineered biochars (103-261mg/g) were higher than those of the pristine biochars (32.9-56.0mg/g). The adsorption of Pb2+ onto the biochars were affected by adsorbent dosage, initial solution pH, and ionic strength. Findings from this work indicated that the engineered biochar from eggshell-treated biochar can be used as an effective agent for soil and water remediation and conservation.

KW - Biosorption

KW - Conservation

KW - Designer biochar

KW - Heavy metal

KW - Remediation

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