A STUDY ON THE REMOVAL OF IONS Pb(II) AND Cu(II) FROM SOLUTION BY USING BIOCHAR DERIVED FROM SAWDUST

Kim Diễm Mai Nguyễn , Gia Hy Lưu , Chí Hiền Trương , Tăng Cát Lượng Phạm

Main Article Content

Abstract

 

 

This study aims to investigate four factors affecting the adsorption process of Pb(II) and Cu(II) ions on biochar prepared from sawdust. These factors include: pH (2.0-6.0), metal ion concentration (5-200 mg.L-1), adsorption time (5-1440 minutes), and biochar weight (0.05-0.10 g). The results show that the maximum amount of metal ion adsorbed per adsorbent mass unit reached 62.11 mg.g-1 for Pb(II) and 20.49 mg.g-1 for Cu(II) at pH = 4.0 and adsorption time of 120 minutes. The adsorption of Pb(II) and Cu(II) ions on biochar is well represented by the second-order kinetics and Langmuir adsorption isotherm model. This study presents the ability to remove Pb(II) and Cu(II) ions in wastewater of the Inorganic Chemistry laboratory at Ho Chi Minh City University of Education.

Article Details

Author Biographies

Kim Diễm Mai Nguyễn,

Giảng viên Bộ môn Hoá Công nghệ - Môi trường, Khoa Hoá học, Đại học Sư phạm Thành phố Hồ Chí Minh.

Chí Hiền Trương,

Giảng viên Bộ môn Hoá Công nghệ - Môi trường, Khoa Hoá học, Đại học Sư phạm Thành phố Hồ Chí Minh.

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