Removal of Manganese from Solution using Polyamide Membrane

2017 5th International Conference on Environment Pollution and Prevention

生态环境科学

Mathaba, M.^1 ; Sithole, N.^1 ; Mashifana, T.^1

University of Johannesburg, Department of Chemical Engineering, P.O. Box 17011, Doornfontein

2028, South Africa^1

关键词: Acid mine drainage;    Dead-end filtration;    Initial feed concentration;    Membrane fluxes;    Membrane performance;    Operating parameters;    Polyamide membranes;    Pressure increase;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/120/1/012023/pdf
DOI  :  10.1088/1755-1315/120/1/012023

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The work demonstrates the performance of polyamide membrane in the removal of manganese ions from single salt aqueous solution simulating real acid mine drainage. The membrane was tested using a dead-end filtration cell with manganese sulphate was used to prepare a feed solution. The membrane flux and metal rejection was evaluated. Effect of operating parameters such as pH, initial feed concentration and pressure on membrane performance was investigated. The pressure was varied between 10 and 15 bar and it was observed that increasing the pressure increases the membrane flux. Acidic pH conditions contributed to the removal of the contaminate as Mn2+ions are freely at low pH. The percentage rejection was found to be 63.5 to 77.6 % as concentration is increased from 290 ppm to 321 ppm for a feed solution. The membrane showed satisfactory results in removing metal ions from solution.