Evaluation of Zero-Valent Iron for Pb(II) Contaminated Soil Remediation: From the Analysis of Experimental Mechanism Hybird with Carbon Emission Assessment

Junfang Sun, Angran Tian, Zheyuan Feng, Yu Zhang, Feiyang Jiang and Qiang Tang
Additional contact information
Junfang Sun: Dongwu Business School, Soochow University, Suzhou 215021, China
Angran Tian: School of Rail Transportation, Soochow University, Suzhou 215131, China
Zheyuan Feng: School of Rail Transportation, Soochow University, Suzhou 215131, China
Yu Zhang: Graduate School of Global Environmental Studies, Kyoto University, Kyoto 606-8501, Japan
Feiyang Jiang: D’Amore-McKim School of Business, Northeastern University, Boston, MA 02115, USA
Qiang Tang: School of Rail Transportation, Soochow University, Suzhou 215131, China

Sustainability, 2021, vol. 13, issue 2, 1-13

Abstract: Carbon emission is one of the main causes of global climate change, thus it is necessary to choose a low-carbon method in the contaminated soil remediation. This paper studies the adsorption ability of ZVI on Pb(II) contaminated soils under different working conditions. The removal efficiency of Pb(II) was 98% because of the suitable ZVI dosage, log reaction time and low initial solution concentration. The whole balancing process was much fast according to the pseudo-second-order kinetic and Freundlich isothermal model. Moreover, sequential extraction procedure (SEP) showed Pb(II) was transformed from Fe/Mn oxides-bound form to residual form in Pb(II) contaminated soils. From scanning electron microscopy (SEM), Brunauer-Emmett-Teller method (BET) and X-ray diffraction (XRD) results, it was confirmed that zero-valent iron (ZVI) stabilizes Pb(II) pollutants mostly through the combination of chemical adsorption and physical adsorption. The economic and carbon emission assessments were used to compare the cost and carbon emissions of different methods. The results show that ZVI adsorption has excellent economic benefits and low carbon emission.

Keywords: lead; zero-valent iron; adsorption; cost; carbon emission (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/2071-1050/13/2/452/pdf (application/pdf)
https://www.mdpi.com/2071-1050/13/2/452/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:13:y:2021:i:2:p:452-:d:475429

Access Statistics for this article

Sustainability is currently edited by Ms. Alexandra Wu

More articles in Sustainability from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().