Adsorption of methylene blue on biochar microparticles derived from different waste materials

Waste Management
Linson LonappanJosé R Valero

Abstract

Biochar microparticles were prepared from three different types of biochar, derived from waste materials, such as pine wood (BC-PW), pig manure (BC-PM) and cardboard (BC-PD) under various pyrolysis conditions. The microparticles were prepared by dry grinding and sequential sieving through various ASTM sieves. Particle size and specific surface area were analyzed using laser particle size analyzer. The particles were further characterized using scanning electron microscope (SEM). The adsorption capacity of each class of adsorbent was determined by methylene blue adsorption tests in comparison with commercially available activated carbon. Experimental results showed that dye adsorption increased with initial concentration of the adsorbate and biochar dosage. Biochar microparticles prepared from different sources exhibited improvement in adsorption capacity (7.8±0.5 mg g(-1) to 25±1.3 mg g(-1)) in comparison with raw biochar and commercially available activated carbon. The adsorption capacity varied with source material and method of production of biochar. The maximum adsorption capacity was 25 mg g(-1) for BC-PM microparticles at 25°C for an adsorbate concentration of 500 mg L(-1) in comparison with 48.30±3.6 mg g(-1) for activat...Continue Reading

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Citations

Jan 14, 2017·Environmental Science and Pollution Research International·Xiangrui KongJingge Shang
Sep 13, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Lih-Fu ChenCheng-Chung Liu
Dec 15, 2019·International Journal of Environmental Research and Public Health·Jean Yves UwamunguChunsheng Hu
Mar 13, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Jiangang YuPing Li
Nov 6, 2018·Water Science and Technology : a Journal of the International Association on Water Pollution Research·Lin ZhangHongtao Huang
May 15, 2020·Environmental Science and Pollution Research International·Glademir AlvarengaToni J Lopes
Jan 26, 2021·Frontiers in Bioengineering and Biotechnology·Shweta JaiswalPratyoosh Shukla
Jul 4, 2021·International Journal of Biological Macromolecules·Curtis SetoTizazu H Mekonnen

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