Valorizing Rice Straw and Its Anaerobically Digested Residues for Biochar to Remove Pb(II) from Aqueous Solution
Joint Authors
Li, Jinyang
Shen, Fei
Yang, Gang
Zhang, Yanzong
Deng, Shihuai
Zhang, Jing
Zeng, Yongmei
Luo, Tao
Mei, Zili
Source
International Journal of Polymer Science
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-03-20
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
To seek a new path to valorize rice straw (RS) and its anaerobically digested residues (DRS), biochar production at different temperatures for removing Pb(II) from aqueous solution and its basic physicochemical characteristics for elucidating potentially adsorption mechanisms were investigated.
Overall, pH, electrical conductivity (EC), ash, specific surface area (SA), micronutrient content, and aromaticity of RS biochars (RSBCs) and DRS biochars (DRSBCs) increased with the promoted pyrolysis temperature, and opposite trends were found on the yield, volatile matter, H, N, and O.
Lower pH and K content but higher yield, carbon stability, and N and P content were achieved by DRSBCs.
Consequently, DRSBCs exhibited lower Pb(II) removal, which was 0.15–0.35 of RSBCs.
Maximum adsorption capacities of 276.3 and 90.5 mg·g−1 were achieved by RSBC and DRSBC, respectively, at 500°C.
However, distinct mechanisms dominated Pb(II) removal, in which carbonates and carboxylates were responsible for RSBCs, and phosphate silicate precipitation and complexation with carboxylate groups controlled DRSBCs.
American Psychological Association (APA)
Li, Jinyang& Shen, Fei& Yang, Gang& Zhang, Yanzong& Deng, Shihuai& Zhang, Jing…[et al.]. 2018. Valorizing Rice Straw and Its Anaerobically Digested Residues for Biochar to Remove Pb(II) from Aqueous Solution. International Journal of Polymer Science،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1174997
Modern Language Association (MLA)
Li, Jinyang…[et al.]. Valorizing Rice Straw and Its Anaerobically Digested Residues for Biochar to Remove Pb(II) from Aqueous Solution. International Journal of Polymer Science No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1174997
American Medical Association (AMA)
Li, Jinyang& Shen, Fei& Yang, Gang& Zhang, Yanzong& Deng, Shihuai& Zhang, Jing…[et al.]. Valorizing Rice Straw and Its Anaerobically Digested Residues for Biochar to Remove Pb(II) from Aqueous Solution. International Journal of Polymer Science. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1174997
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1174997