Removal of-Copper Ions-from Aqueous Solution Using Liquid-Surfactant-Membrane Technique

Huda M Salman,Ahmed Abed Mohammed

doi:10.31699/ijcpe.2019.3.5

Abstract

Extraction of copper (Cu) from aqueous solution utilizing Liquid Membrane technology (LM) is more effective than precipitation method that forms sludge and must be disposed of in landfills. In this work, we have formulated a liquid surfactant membrane (LSM) that uses kerosene oil as the main diluent of LSM to remove copper ions from the aqueous waste solution through di- (2-ethylhexyl) phosphoric acid - D2EHPA- as a carrier. This technique displays several advantages including one-stage extraction and stripping process, simple operation, low energy requirement, and. In this study, the LSM process was used to transport Cu (II) ions from the feed phase to the stripping phase, which was prepared, using H2SO4. For LSM process, various parameters have been studied such as carrier concentration; treat ratio (TR), agitating speed and initial feed concentration. After finding the optimum parameters, it was possible to extract Cu up to 95% from the aqueous feed phase in a single stage extraction.

Highlights

Increased use of metals and chemicals in process industries has resulted in the generation of large quantities of effluent that contain high levels of toxic heavy metals and their presence poses disposal problems due to their non-degradable and persistent nature
Removal of ions from their effluents has assumed of a higher importance in the recent past due to the decreasing availability of natural resources and the increasing pollution in the environment ‎[4]-‎[6]
The elimination of copper (Cu) from aqueous solutions requires an efficient system for environmental reasons

Summary

Introduction

Increased use of metals and chemicals in process industries has resulted in the generation of large quantities of effluent that contain high levels of toxic heavy metals and their presence poses disposal problems due to their non-degradable and persistent nature. Removal of ions from their effluents has assumed of a higher importance in the recent past due to the decreasing availability of natural resources and the increasing pollution in the environment ‎[4]-‎[6]. A traditional method to remove Cu from solutions is the solvent extraction method. In this technique, a well-established Cu extract should be used, such as diketones or hydroxytoxics ‎[7]

Objectives

Methods

Findings

Conclusion