Adsorptive removal of phosphate from aqueous solutions using low-cost modified biochar-packed column: Effect of operational parameters and kinetic study

T C Phuong Tran; T Phuong Nguyen; X Cuong Nguyen; X H Nguyen; T A Hang Nguyen; T T Nguyen Nguyen; T Y Binh Vo; T H Giang Nguyen; T T Huyen Nguyen; T D Hien Vo; P Senthil Kumar; Myoung-Jin Um; D Duc Nguyen

doi:10.1016/j.chemosphere.2022.136628

Adsorptive removal of phosphate from aqueous solutions using low-cost modified biochar-packed column: Effect of operational parameters and kinetic study

Chemosphere. 2022 Dec;309(Pt 1):136628. doi: 10.1016/j.chemosphere.2022.136628. Epub 2022 Sep 28.

Authors

Affiliations

¹ Faculty of Biology and Environment, Ho Chi Minh City University of Food Industry, Ho Chi Minh City, Viet Nam.
² Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000, Viet Nam. Electronic address: nguyenxuancuong4@duytan.edu.vn.
³ Vietnam Japan University, Vietnam National University, Hanoi, 101000, Viet Nam.
⁴ Center for Advanced Chemistry, Institute of Research and Development, Duy Tan University, Da Nang, 550000, Viet Nam; Faculty of Environmental and Chemical Engineering, Duy Tan University, Da Nang, 550000, Viet Nam.
⁵ Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam.
⁶ Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam-603110, India; Department of Biotechnology Engineering and Food Technology, Chandigarh University, Mohali, 140413, India.
⁷ Department of Civil Engineering, Kyonggi University, Suwon 16227, South Korea.
⁸ Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City, Viet Nam; Department of Environmental Energy Engineering, Kyonggi University, Suwon 16227, South Korea. Electronic address: nguyensyduc@gmail.com.

PMID: 36181849
DOI: 10.1016/j.chemosphere.2022.136628

Abstract

Adsorption in the continuous mode plays a significant role in wastewater treatment. In this study, Mimosa pigra-derived biochar modified with 2 M AlCl₃ salt was used to pack a lab-scale column to eliminate PO₄^3- from aqueous solutions. The influence of the operational factors, such as inlet PO₄^3- concentration (25-100 mg/L), flow rate (6-18 mL/min), and biochar bed height (1.5-4.5 cm), on the breakthrough curve was evaluated. The kinetic models of Adam-Bohart and Yoon-Nelson were utilized to analyze the experimental results. The best conditions were determined to be the influent PO₄^3- strength of 50 mg/L, injection speed of 6 mL/min, and column height of 4.5 cm. These results can be applied in the design of large-scale columns for the sequestration of PO₄^3- from wastewater.

Keywords: Adsorption; Biochar; Column; Operational parameters; Phosphate.

MeSH terms

Adsorption
Charcoal
Phosphates
Wastewater
Water
Water Pollutants, Chemical* / analysis
Water Purification* / methods

Substances

biochar
Waste Water
Phosphates
Charcoal
Water Pollutants, Chemical
Water