Grafting of Acrylic Membrane Prepared from Fibers Waste for Dyes Removal: Methylene Blue and Congo Red

Abstract

Dyes are a type of pollutant that have been discharged into water streams by various industries and had harmful effects on the environment and human health. Therefore, present work was directed to recycle acrylic fibers waste to be used as an adsorbent to exclude dyes such as methylene blue (MB) and Congo red (CR) from dyes-polluted wastewater. Acrylic fibers waste was converted into membrane followed by chemical grafting with p-phenylenediamine monomer to form functional modified membranes. Afterwards, some characterization analyses; Fourier transform-infrared, scanning electron microscope, swelling behavior, and porosity properties were performed for the acrylic fiber grafted membrane (AFGM). For obtaining the best conditions that permit the highest adsorption capacity of the AFGM, some preliminary experiments followed by general full factorial design experiments were displayed. Langmuir, Freundlich isotherms and kinetic studies evaluations were applied. Results revealed that, the adsorption capacities of the AFGM were 61% for Methylene blue and 86% for Congo red that stated the high affinity of the AFGM to the anionic dyes. The reusability of the AFGM membranes in different cycles for 3Rs processes “Removal, Recovery, and Re-use” indicated the efficiency of the AFGM to be used in wastewater treatment.

Potential applicability of Jatropha curcas leaves in bioethanol production and their composites with polymer in wastewater treatment

“…The swelling test of the PVC composite sheets was performed using a wet/dry weight method via immersion of the three samples (2 × 2 cm 2 ) for each sheet in a pure water for 24 h. Afterwards, the wet weighted was listed after wiping the excess water using tissue paper; then, the sheets were dried at 100 °C until a constant weigh was reached [31]. The swelling was estimated as follows…”

Removal of Dye from Aquatic Environments: State-of-the-Art and Future Perspectives

“…In addition, the membrane flux recovery ratio of the modified UF increased from 25% of blank PES-UF to more than 70% after two cycles of hydraulic cleaning and bovine serum albumin filtration. In another study, 61% of MB and 86% of Congo red (CR) were removed via an acrylic fiber-grafted membrane (AFGM) [14]. In comparison with the blank membrane (with a swelling performance [%] of 420), the swelling performance of AFGM was 320, which indicates that voids and pores might occur within the membrane as well as on the membrane surface.…”

Novel Composite Films Based on Acrylic Fibers Waste/Nano-chitosan for Congo Red Adsorption

“…Lehia and Akbari used acrylic fibers and fuzzes wasted in carpet industries to prepare adsorption membrane for removing Persian Orange X from textile effluents [41]. Poly acrylonitrile Nanofiber materials have been recently used as CR adsorbent and heavy metal removal [42][43][44][45]. Also modified acrylic fiber waste have been recently used for removal CR, methylene blue and uranium, thorium from liquid waste solution [46,47].…”