Abstract
This study investigates the possibility of applying an adsorption process using two abundant natural minerals M1 and M2. Without pretreatment or activation, the adsorbents were used to treat real textile wastewater samples (collected from Fez city, Morocco). As a cost-effective alternative, these materials were characterized by different analyses, including X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray fluorescence (XRF). Chemical oxygen demand (COD) and biological oxygen demand (BOD) were used to characterize the textile wastewater. Additionally, the influence of operating conditions (contact time, adsorbent dosages, and pH) was evaluated. Results show that the adsorption process takes place quickly, reaching the equilibrium at 90 and 160 min for M1 (88% COD) and M2 (79% COD). Both materials show a higher affinity to Cr (39%) and lower affinity to Cu (28%). A pseudo-second-order kinetic model provides the best fit to the experimental adsorption data. Germination tests indicate a low toxicity after the adsorption process. Performance of both materials was compared with that of other literature studies.
Highlights
Water is the source of life on Earth
Some researchers determined that textile wastewaters are considered to be the most polluted water because of the presence of a high amount of dyes which have a toxic effect on the environment [3], due to dyes, pH changing, biological oxygen demand (BOD), chemical oxygen demand (COD), the presence of a large quantity of suspended solids, total dissolved solids (TDS), and salts and organic compounds [4,5,6,7]. us, legislations controlling the use of these substances have been established in many countries
E aim of this study is to investigate the possibility of using two abundant natural mineral materials as adsorbents to treat real textile wastewater (Fez city, Essabbaghine). e investigation Journal of Chemistry will focus on using the materials without pretreatment or activation to reveal their cost effectiveness compared to other treated adsorbents from the literature and to prove their eco-friendly processes
Summary
Water is the source of life on Earth. various human activities, such as industrial, domestic usage, or agricultural, cause its pollution. There are various treatment processes that have been investigated and employed extensively for dyes elimination from wastewater [8, 9], including coagulation and flocculation [10], biological treatment using anaerobic granular [11], catalytic wet oxidation photochemical treatment [12,13,14], Fenton’s process, and adsorption technology. Many of these technologies are expensive and complex when used to treat these dyes. The adsorption technique seems to have the best potential for wastewater treatment in industry [15], thanks to its great capacity to purify contaminated water and economic aspects [2]
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