Water Purification using Recycled Polymeric Microfiltration Membranes

Abstract

In our previous work, microfiltration membranes were successfully manufactured by non-solvent induced phase separation (NIPS) method using two concentrations (30 and 35 wt%) of recycled high impact polystyrene (HIPS-R). N, Ndimethyl formamide (DMF) was used as solvent and water as a coagulation bath. These membranes were characterized in terms of chemical composition, surface hydrophilicity, surface crosssection morphology, porosity, and pores size distribution. Accordingly, the membrane's surfaces showed a semihydrophilic behavior with contact angles of 81 o and 91 o for 30 wt% and 35 wt% membranes respectively. In the current study, The prepared membranes were examined for the removal of Humic acid (HA) and Rhodamine B (RhB) dye in a microfiltration process. Filtration experiment showed that pure water flux of 30 wt% membrane was higher than of 35 wt% membrane, also 30 wt% membrane has a higher humic acid and Dye removal efficiency than of 35 wt% membrane. Thus, the results suggest active membranes could be obtained using recycled high impact polystyrene. And then, solve the polymer waste accumulation problem in parallel with help in drinking water crisis solution.

Waste high impact polystyrene (HIPS) microfiltration membranes for water treatment: A thorough experimental study

“…The materials that were utilized to make the membranes were as determined in our previous studies Khaled, Noby, Mansor, et al, 2020). HIPS-R cups are available in the local Egyptian market, N,N-dimethylformamide (DMF, Sigma-Aldrich, 99%)…”

“…A membrane's performance is determined by its ability to reject the , which led to the poor hydrophobic contact between HA particles and the membrane surface (Faibish and Cohen, 2001), and this resulted in the lowest flux loss of 20 wt% membrane, which has the highest surface hydrophilicity, compared to other membranes (Khaled, Noby, Mansor, et al, 2020).…”

“…In our previous studies, four concentrations of PS membranes were synthesized of waste high‐impact polystyrene (HIPS) by the phase inversion method (Khaled, Noby, Aissa, et al., 2020). In a membrane filtration process, the feasibility of using these membranes in water purification was briefly investigated (Khaled, Noby, Aissa, et al., 2020; Khaled, Noby, Mansor, et al., 2020).…”

“…In our previous studies, four concentrations of PS membranes were synthesized of waste high‐impact polystyrene (HIPS) by the phase inversion method (Khaled, Noby, Aissa, et al., 2020). In a membrane filtration process, the feasibility of using these membranes in water purification was briefly investigated (Khaled, Noby, Aissa, et al., 2020; Khaled, Noby, Mansor, et al., 2020). The effect of PS concentration on the physical and chemical properties of the fabricated membranes was investigated (Khaled, Noby, Aissa, et al., 2020).…”

“…In a membrane filtration process, the feasibility of using these membranes in water purification was briefly investigated (Khaled, Noby, Aissa, et al., 2020; Khaled, Noby, Mansor, et al., 2020). The effect of PS concentration on the physical and chemical properties of the fabricated membranes was investigated (Khaled, Noby, Aissa, et al., 2020). FTIR, SEM, and surface contact angle (CA) measurements were used to analyze the produced membranes.…”