Engineered biochar from agricultural waste for removal of tetracycline in water

Hyun Min Jang; Eunsung Kan

doi:10.1016/j.biortech.2019.03.131

Engineered biochar from agricultural waste for removal of tetracycline in water

Hyun Min Jang
, Eunsung Kan^*

^*Corresponding author for this work

Environmental Engineering

Texas A&M University
Tarleton State University

Research output: Contribution to journal › Journal article › peer-review

211 Scopus citations

Abstract

For the first time the present study investigated the production, characterization and application of engineered biochar derived from alfalfa hays for removal of tetracycline (TC) in water. The NaOH activation of alfalfa-derived raw biochar (BC_R) made significant increase in surface area (796.50 m²/g) and pore volume (0.087 cm³/g). The NaOH-activated BC (BC_A) showed much higher adsorption capacity for TC (Q_m = 302.37 mg/g) than BC_R, but comparable to the commercial activated carbon (Calgon F400). The detailed analyses of the kinetic and isotherm studies suggested the strong chemisorptive interactions between TC and BC_A via multiple mechanisms. In addition, intraparticle diffusion was considered as the major limitation for the adsorption of TC onto BC_A. Furthermore, the fixed bed experiments revealed that BC_A could be a promising adsorbent for treating large volume of TC-contaminated water in columns.

Original language	English
Pages (from-to)	437-447
Number of pages	11
Journal	Bioresource Technology
Volume	284
DOIs	https://doi.org/10.1016/j.biortech.2019.03.131
State	Published - 2019.07

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 12 Responsible Consumption and Production

Keywords

Activated biochar
Agricultural waste
Alfalfa
Engineered biochar
Tetracycline

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10.1016/j.biortech.2019.03.131

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@article{07b56e45a29f4e218b223339483fc862,

title = "Engineered biochar from agricultural waste for removal of tetracycline in water",

abstract = "For the first time the present study investigated the production, characterization and application of engineered biochar derived from alfalfa hays for removal of tetracycline (TC) in water. The NaOH activation of alfalfa-derived raw biochar (BCR) made significant increase in surface area (796.50 m2/g) and pore volume (0.087 cm3/g). The NaOH-activated BC (BCA) showed much higher adsorption capacity for TC (Qm = 302.37 mg/g) than BCR, but comparable to the commercial activated carbon (Calgon F400). The detailed analyses of the kinetic and isotherm studies suggested the strong chemisorptive interactions between TC and BCA via multiple mechanisms. In addition, intraparticle diffusion was considered as the major limitation for the adsorption of TC onto BCA. Furthermore, the fixed bed experiments revealed that BCA could be a promising adsorbent for treating large volume of TC-contaminated water in columns.",

keywords = "Activated biochar, Agricultural waste, Alfalfa, Engineered biochar, Tetracycline",

author = "Jang, \{Hyun Min\} and Eunsung Kan",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Ltd",

year = "2019",

month = jul,

doi = "10.1016/j.biortech.2019.03.131",

language = "English",

volume = "284",

pages = "437--447",

journal = "Bioresource Technology",

issn = "0960-8524",

}

TY - JOUR

T1 - Engineered biochar from agricultural waste for removal of tetracycline in water

AU - Jang, Hyun Min

AU - Kan, Eunsung

PY - 2019/7

Y1 - 2019/7

N2 - For the first time the present study investigated the production, characterization and application of engineered biochar derived from alfalfa hays for removal of tetracycline (TC) in water. The NaOH activation of alfalfa-derived raw biochar (BCR) made significant increase in surface area (796.50 m2/g) and pore volume (0.087 cm3/g). The NaOH-activated BC (BCA) showed much higher adsorption capacity for TC (Qm = 302.37 mg/g) than BCR, but comparable to the commercial activated carbon (Calgon F400). The detailed analyses of the kinetic and isotherm studies suggested the strong chemisorptive interactions between TC and BCA via multiple mechanisms. In addition, intraparticle diffusion was considered as the major limitation for the adsorption of TC onto BCA. Furthermore, the fixed bed experiments revealed that BCA could be a promising adsorbent for treating large volume of TC-contaminated water in columns.

AB - For the first time the present study investigated the production, characterization and application of engineered biochar derived from alfalfa hays for removal of tetracycline (TC) in water. The NaOH activation of alfalfa-derived raw biochar (BCR) made significant increase in surface area (796.50 m2/g) and pore volume (0.087 cm3/g). The NaOH-activated BC (BCA) showed much higher adsorption capacity for TC (Qm = 302.37 mg/g) than BCR, but comparable to the commercial activated carbon (Calgon F400). The detailed analyses of the kinetic and isotherm studies suggested the strong chemisorptive interactions between TC and BCA via multiple mechanisms. In addition, intraparticle diffusion was considered as the major limitation for the adsorption of TC onto BCA. Furthermore, the fixed bed experiments revealed that BCA could be a promising adsorbent for treating large volume of TC-contaminated water in columns.

KW - Activated biochar

KW - Agricultural waste

KW - Alfalfa

KW - Engineered biochar

KW - Tetracycline

UR - https://www.scopus.com/pages/publications/85064052378

U2 - 10.1016/j.biortech.2019.03.131

DO - 10.1016/j.biortech.2019.03.131

M3 - Journal article

C2 - 30981196

AN - SCOPUS:85064052378

SN - 0960-8524

VL - 284

SP - 437

EP - 447

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Engineered biochar from agricultural waste for removal of tetracycline in water

Abstract

UN SDGs

Keywords

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