Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology

Pyrolysis of biomass into biochar and application of a carbon-rich product to water and soil media have been demonstrated to be effective in sequestering of contaminants. Fundamentally, biochar characteristics are controlled by feedstock and pyrolysis variables. The present study investigated the ef...

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Main Authors: Yavari, S., Malakahmad, A., Sapari, N.B.
Format: Article
Institution: Universiti Teknologi Petronas
Record Id / ISBN-0: utp-eprints.19678 /
Published: Institution of Chemical Engineers 2017
Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019587984&doi=10.1016%2fj.psep.2017.05.002&partnerID=40&md5=f3f86b29bd47a58a8cd36f3734bc47e9
http://eprints.utp.edu.my/19678/
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spelling utp-eprints.196782018-04-20T07:28:42Z Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology Yavari, S. Malakahmad, A. Sapari, N.B. Yavari, S. Pyrolysis of biomass into biochar and application of a carbon-rich product to water and soil media have been demonstrated to be effective in sequestering of contaminants. Fundamentally, biochar characteristics are controlled by feedstock and pyrolysis variables. The present study investigated the effects of synthesis variables (highest treatment temperature, heating rate and residence time) on biochar sorption properties. Oil palm empty fruit bunch (EFB) and rice husk (RH) biomasses were compared as initial feedstock. The variables were optimized using response surface methodology (RSM) to optimize the values of responses including biochars organic carbon content, cation exchange capacity (CEC), surface area and pores volume. Sorption performances of the optimized biochars were further investigated in removal of a polar imidazolinone herbicide from soil. Based on the results, pyrolysis temperature was the most effective variable on the responses followed by residence time and heating rate. Optimum conditions to maximize the biochars sorption properties were pyrolysis temperature of 493.44 °C and 700 °C and residence time of 1 h and 3 h for EFB and RH biochars, respectively. The best heating rate was 3 °C/min for both biochars. Optimized EFB biochar showed higher affinity for the herbicide due to its higher CEC and functionality, effective in sorption of polar compounds. © 2017 Institution of Chemical Engineers Institution of Chemical Engineers 2017 Article PeerReviewed https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019587984&doi=10.1016%2fj.psep.2017.05.002&partnerID=40&md5=f3f86b29bd47a58a8cd36f3734bc47e9 Yavari, S. and Malakahmad, A. and Sapari, N.B. and Yavari, S. (2017) Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology. Process Safety and Environmental Protection, 109 . pp. 509-519. http://eprints.utp.edu.my/19678/
institution Universiti Teknologi Petronas
collection UTP Institutional Repository
description Pyrolysis of biomass into biochar and application of a carbon-rich product to water and soil media have been demonstrated to be effective in sequestering of contaminants. Fundamentally, biochar characteristics are controlled by feedstock and pyrolysis variables. The present study investigated the effects of synthesis variables (highest treatment temperature, heating rate and residence time) on biochar sorption properties. Oil palm empty fruit bunch (EFB) and rice husk (RH) biomasses were compared as initial feedstock. The variables were optimized using response surface methodology (RSM) to optimize the values of responses including biochars organic carbon content, cation exchange capacity (CEC), surface area and pores volume. Sorption performances of the optimized biochars were further investigated in removal of a polar imidazolinone herbicide from soil. Based on the results, pyrolysis temperature was the most effective variable on the responses followed by residence time and heating rate. Optimum conditions to maximize the biochars sorption properties were pyrolysis temperature of 493.44 °C and 700 °C and residence time of 1 h and 3 h for EFB and RH biochars, respectively. The best heating rate was 3 °C/min for both biochars. Optimized EFB biochar showed higher affinity for the herbicide due to its higher CEC and functionality, effective in sorption of polar compounds. © 2017 Institution of Chemical Engineers
format Article
author Yavari, S.
Malakahmad, A.
Sapari, N.B.
Yavari, S.
spellingShingle Yavari, S.
Malakahmad, A.
Sapari, N.B.
Yavari, S.
Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology
author_sort Yavari, S.
title Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology
title_short Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology
title_full Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology
title_fullStr Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology
title_full_unstemmed Sorption properties optimization of agricultural wastes-derived biochars using response surface methodology
title_sort sorption properties optimization of agricultural wastes-derived biochars using response surface methodology
publisher Institution of Chemical Engineers
publishDate 2017
url https://www.scopus.com/inward/record.uri?eid=2-s2.0-85019587984&doi=10.1016%2fj.psep.2017.05.002&partnerID=40&md5=f3f86b29bd47a58a8cd36f3734bc47e9
http://eprints.utp.edu.my/19678/
_version_ 1741196245494398976
score 11.62408

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