Removal of Phenol from Wastewater by Supported Liquid Membrane Process

Abstract

Phenol is considered a pollutant in the environment due to its toxicity and carcinogenic effect. Supported liquid membrane (SLM) is a good and promising technology for the removal of phenol from wastewater because it provides maximum driving force for the separation of targeted solute and simultaneous extraction and stripping process which lead to excellent separation. In this research, kerosene and palm oil liquid membranes were used as liquid membrane phase, aqueous phenol as the feed phase and aqueous sodium hydroxide as the stripping phase. Several factors such as feed phase pH, feed phase flow rate and concentration of stripping phase were studied. The results show that the best extraction performance can achieve 35% at pH 4 of feed phase, 150 ml/min feed flow rate and 1.0 M of stripping phase concentration. The result was used to determine the probability of using palm oil as a liquid membrane. In the determination of the potential of using palm oil as the membrane phase, the results show that an equal portion of palm oil and kerosene mixture performed the best extraction with 43% efficiency.

Liquid Membrane Component Selection for Removal of Phenol From Simulated Aqueous Waste Solution

“…Also, it is observed that at this ratio the phase separation time of the mixed solution is significantly reduced. It is expected that by adding kerosene to palm oil, the viscosity of palm oil will be reduced hence it will increase the distribution coefficient of solutes and will influence the solvent extraction kinetics [10]. This is because kerosene contains a higher number of carbon atoms, which resulted in higher hydrophobicity and it is much less soluble in water compared to palm oil [18].…”

“…Meanwhile, the phenol-TBP complexes reacted with the aqueous sodium hydroxide solution, leading to the formation of sodium phenolate, TBP molecules and water. Triglyceride and TBP molecules were expected to retain in the solvent to form complexes with excess phenols [10]. The sodium phenolates formed from the reaction are expected not to diffuse back into the solvent.…”

“…Liquid-liquid extraction is also one of the phenol removal techniques. However, the use of petroleum-based solvents such as kerosene, benzene and toluene are limited because of their high flammability and toxicity [10].…”

Polymer Inclusion Membrane's 10% Copoly-EEGDMA-Containing Membrane's Lifetime and Optimization for Phenol Transport

“…The development of phenol recovery methods from wastewater is currently the concern of many researchers, in order to find solutions for phenol waste management (Ariesmayana, 2018;Sun et al 2017). Phenol waste treatment needs to be carried out with methods that are more practical, inexpensive, and fast (Othman et al 2015). One of the renewable methods that can be used to perform the separation and recovery of phenol is liquid membrane method (Refinel et al 2019;Kiswandono 2016;Yang et al 2015).…”

Integration of Copperas and <i>Moringa oleifera</i> Seeds as Hybrid Coagulant for Turbidity and Ammonia Removal from Aquaculture Wastewater

“…Treatment of wastewater for pollutant removal is very crucial since it can cause a threat to potable drinking water sources, fisheries, and recreational water bodies. Membrane technology [5][6], liquid membrane [7], and adsorption [8][9][10][11] are a few of the treatment techniques and technologies utilized to treat wastewater. However, certain technologies already in use still struggle to comply with the standard of discharge, the restrictions that have been set up, difficulty in scaling up, and come at a high cost.…”