Sorption of norfloxacin, sulfamerazine and oxytetracycline by KOH-modified biochar under single and ternary systems

Jiwei Luo; Xue Li; Chengjun Ge; Karin Müller; Huamei Yu; Peng Huang; Jiatong Li; Daniel C W Tsang; Nanthi S Bolan; Jörg Rinklebe; Hailong Wang

doi:10.1016/j.biortech.2018.05.022

Sorption of norfloxacin, sulfamerazine and oxytetracycline by KOH-modified biochar under single and ternary systems

Bioresour Technol. 2018 Sep:263:385-392. doi: 10.1016/j.biortech.2018.05.022. Epub 2018 May 8.

Authors

Jiwei Luo¹, Xue Li², Chengjun Ge³, Karin Müller⁴, Huamei Yu⁵, Peng Huang², Jiatong Li², Daniel C W Tsang⁶, Nanthi S Bolan⁷, Jörg Rinklebe⁸, Hailong Wang⁹

Affiliations

¹ College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China; Environmental and Plant Protection Institute, Chinese Academy of Tropical Agricultural Sciences, Haikou, Hainan, China.
² College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China.
³ College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China; College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China.
⁴ The New Zealand Institute for Plant & Food Research Limited, Ruakura Research Centre, Private Bag 3123, Hamilton, New Zealand.
⁵ College of Resources and Environment, Institute of Tropical Agriculture and Forestry, Hainan University, Renmin Road, Haikou 570228, China. Electronic address: [email protected].
⁶ Department of Civil and Environmental Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
⁷ Global Centre for Environmental Remediation, University of Newcastle, Callaghan, NSW, Australia.
⁸ University of Wuppertal, School of Architecture and Civil Engineering, Institute of Foundation Engineering, Water- and Waste Management, Laboratory of Soil- and Groundwater-Management, Pauluskirchstraße 7, 42285 Wuppertal, Germany; Department of Environment, Energy and Geoinformatics, Sejong University, Seoul 05006, Republic of Korea.
⁹ Biochar Engineering Technology Research Center of Guangdong Province, School of Environment and Chemical Engineering, Foshan University, Foshan, Guangdong 528000, China; Key Laboratory of Soil Contamination Bioremediation of Zhejiang Province, Zhejiang A & F University, Hangzhou, Zhejiang 311300, China; Guangdong Dazhong Agriculture Science Co. Ltd., Hongmei Town, Dongguan, Guangdong 523169, China.

PMID: 29763802
DOI: 10.1016/j.biortech.2018.05.022

Abstract

Pollution of water by single antibiotics has been investigated in depth. However, in reality, a wide range of different contaminants is often mixed in the aquatic environment (contaminant cocktail). Here, single and competitive sorption dynamics of ionizable norfloxacin (NOR), sulfamerazine (SMR) and oxytetracycline (OTC) by both pristine and modified biochars were investigated. Sorption kinetics of the three antibiotics was faster in ternary-solute than single-solute system. Sorption efficiency was enhanced in the competitive system for NOR by the pristine biochar, and for OTC by both the pristine biochar and the modified biochar, while SMR sorption by the pristine biochar and the KOH-modified biochar was inhibited. Sorption was governed by electrostatic interactions, π-π EDA and H-bonds for antibiotics sorption by biochar. SMR and OTC sorption by biochar was influenced by cation bridging and surface complexation, respectively. This research finding will guide the development of treatment procedures for water polluted by multiple antibiotics.

Keywords: Antibiotics; Competitive sorption; Engineered biochar; Organic pollutant; Sorption modeling.

MeSH terms

Adsorption
Charcoal*
Norfloxacin*
Oxytetracycline*
Sulfamerazine*
Water Purification

Substances

biochar
Charcoal
Norfloxacin
Sulfamerazine
Oxytetracycline