Magnetic Nano-Organo-Philic Clay and Zeolite to Remove Municipal Carbonaceous Wastes in Matrouh Station | ||
| Egyptian Journal of Chemistry | ||
| Article 58, Volume 65, Issue 11, November 2022, Pages 641-664 PDF (1.79 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejchem.2022.115470.5240 | ||
| Author | ||
| Yasser A.M. Abdulhady* | ||
| Hydro geochemistry dept., Water Treatment and Desalination Unit, Desert Research Center, Cairo, Egypt | ||
| Abstract | ||
| The iron nanocomposite of montmorillonite and zeolite in nano-sized as adsorbent with size 12-62 nm was carried by co-precipitation technology. Some carbonaceous compounds such as TSS/COD/BOD and TOC and also total nitrogen (TN), total phosphorous (TP) and total suspended solids (TSS) was studied. Pre-treatment analysis of raw clay and zeolite was done by acidification process. The prepared nanocomposite was characterized by X-ray diffraction (XRD) analysis; scanning electron microscopy (SEM), particle size distribution, and fourier transform infrared (FT-IR) spectroscopy and vibration sample magnetometry. This study focused on removal of COD, BOD, TOC and total nitrogen & phosphates by adsorption and desorption processes. The results showed that the maximum percentage removal of COD, BOD, TOC and TSS by using nanocomposite montmorillonite and zeolite/IONPs were 83.13 %, 88.07 %, 86.12 % and 79.2 % respectively. And also, for TN, TP and TSS were 73.74 %, 70.60 % and 79.21 %. The ratio values between COD/BOD5 & COD/TOC and TOC/BOD5 were 1.58, 1.63 and 0.97. Optimal conditions; Nanocomposite dosage: 5 g/l; Contact time: 30 min.; Temp.: 50oC; pH: 6.0. Adsorption data were reproduced by the Langmuir isotherm, where the carbonaceous compounds adsorption saturation capacity was determined as 72.04 and 206.61 mg/g respectively. The average adsorption free energy change was 2.880 kJ/mol, which indicated the occurrence of ionic exchange. The thermodynamic parameters implied that carbonaceous compounds adsorption was endothermic. | ||
| Keywords | ||
| montmorillonite; zeolite; iron nanocomposite; wastewater treatment; municipal carbonaceous wastes | ||
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