A literature review of the use of sorbents and biosorbents to treat polluted aqueous effluents containing dyes/organics or metal ions has been conducted. Over 70 systems have been reported since 1984 and over 43 of these reported the mechanism as being a pseudo-first order kinetic mechanism. Three sorption kinetic models are presented in this paper and have been used to test 11 of the literatur...

The green synthesis of titanium dioxide nanoparticles was performed using the sol-gel method for their use in modification several agricultural biomasses (orange, lemon, cassava and yam peels) to evaluate enhancement adsorption capacity. To this end, different particle sizes (0.355, 0.5 1.0 mm) initial solution pHs (2, 4 6) were assessed identify optimum conditions further experimentation with ...

Herein, we report the performance of some low-cost biosorbents developed by environment-friendly modification walnut shells. Two types were prepared ecological shell surfaces: (1) obtained hot water treatment (WSH2O) and (2) produced mercerization (WSNaOH). Different techniques used to evaluate morphological, elemental, structural biosorbents, comparison with raw materials. These characterizati...

Humans are at significant risk of antibiotic resistance genes (ARGs) and antimicrobial (AMR) via exposure to pharmaceutical contaminants in water, so there is a strong need for cost-effective environmental solutions mitigate this crisis. This study introduces iron-modified peat magnetite-pine bark as efficient, low-cost green biosorbents the adsorption from wastewater. Peat biomass, modified by...

Abstract In this paper, a novel nanocomposite (carbonic salicylate @ aluminum oxide nanocomposite, AC-COO-Sal@Al 2 O 3 ) and modifier carbon biosorbents were synthesized from low-cost raw materials (commercial activated carbon). Infrared spectra demonstrated the presence of several active groups in material matrixes biosorbents. X-ray diffraction analysis showed that surfaces form crystals embe...

In this research, the batch removal of toxic hexavalent chromium ions from wastewater and aqueous solution using dried (BD) Sargassum sp. (brown marine algae) and Activated Carbon (AC) prepared from it was examined. Biomass, pH and the initial concentration of Cr(VI), adsorption models and kinetic studies were investigated. The experiment was performed in a batch system and theeffe...