Use of Calcite Mud from Paper Factories in Phosphorus Treatment

Hong Ha Thi Vu, Mohd Danish Khan, Tran Van Tan, Dang Viet Quang, Dao Van-Duong, Seongho Lee, Ji Whan Ahn and Seok-ho Jung
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Hong Ha Thi Vu: Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
Mohd Danish Khan: Resources Recycling Department, University of Science and Technology, 217, Gajeong-ro, Yuseong-gu, Daejeon 34113, Korea
Tran Van Tan: Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
Dang Viet Quang: Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
Dao Van-Duong: Faculty of Biotechnology, Chemistry and Environmental Engineering, Phenikaa University, Hanoi 12116, Vietnam
Seongho Lee: Center for Carbon Mineralization, Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), 124 Gwahak-ro, Gajeong-dong, Yuseong-gu, Daejeon 34132, Korea
Ji Whan Ahn: Center for Carbon Mineralization, Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), 124 Gwahak-ro, Gajeong-dong, Yuseong-gu, Daejeon 34132, Korea
Seok-ho Jung: Department of Earth and Environmental Science, Korea University, Seoul 02841, Korea

Sustainability, 2020, vol. 12, issue 15, 1-13

Abstract: To use calcite mud waste generated from the paper production process, calcite mud was treated by calcination and then applied as a sorbent agent to remove phosphorus from an aqueous solution. The pre-treatment muds were characterized by scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction. The effects of calcite mud with different calcination temperatures on phosphorus removal were investigated. Different sorbent dosages, contact times, and initial phosphorus concentration conditions were also studied to understand the phosphorus removal mechanism. The results show that phosphorus removal efficiency was increased by increasing the calcination temperature of the mud. The phosphorus removal efficiency over 10 min increased by 35%, 82%, 98%, and 100% with 4.5, 6.75, 9.0, and 11.25 mg, respectively, of calcite mud calcined at 1000 °C. However, the efficiency decreased as initial phosphorus concentration increased. To study the phosphorus removal trend, the pseudo-first-order, pseudo-second-order, and intraparticle diffusion kinetic models were used. The Langmuir and Freundlich isotherm models were also used to further investigate the phosphorus adsorption mechanism characteristics of the calcite mud.

Keywords: calcite mud; calcium oxide; sorption; phosphorus removal (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
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