Mahmoud, M., Elsayed, M., Soltan, M., Wahaballa, A. (2024). Anaerobic digestion for treatment of polyester wastewater with different organic loading rates (OLRs). Aswan University Journal of Environmental Studies, 5(1), 69-86. doi: 10.21608/aujes.2024.258934.1205
Mohamed Saad Mahmoud; Mahmoud Abd-ELaziz Elsayed; Mohamed Abbas Soltan; Amr Mohamed Wahaballa. "Anaerobic digestion for treatment of polyester wastewater with different organic loading rates (OLRs)". Aswan University Journal of Environmental Studies, 5, 1, 2024, 69-86. doi: 10.21608/aujes.2024.258934.1205
Mahmoud, M., Elsayed, M., Soltan, M., Wahaballa, A. (2024). 'Anaerobic digestion for treatment of polyester wastewater with different organic loading rates (OLRs)', Aswan University Journal of Environmental Studies, 5(1), pp. 69-86. doi: 10.21608/aujes.2024.258934.1205
Mahmoud, M., Elsayed, M., Soltan, M., Wahaballa, A. Anaerobic digestion for treatment of polyester wastewater with different organic loading rates (OLRs). Aswan University Journal of Environmental Studies, 2024; 5(1): 69-86. doi: 10.21608/aujes.2024.258934.1205
Anaerobic digestion for treatment of polyester wastewater with different organic loading rates (OLRs)
1Civil Engineering,Faculty of Engineering, Aswan University,Aswan,Egypt
2Assistant Professor of Sanitary and Environmental EngineeringAssistant Professor of Sanitary and Environmental Engineering, civil engineering departemet, Faculty of Engineering, 81542, Aswan, Egypt
3Civil Engineering Department, Faculty of Engineering, Aswan University, P.O.Box 81542, Aswan, Egypt.
Abstract
In this work, the performance of up-flow anaerobic staged reactor (UASR) was investigated for biogas production from polyester wastewater which are contaminated with heavy metals and 1,4-dioxane. three different values of average organic loading rates (OLRs) were applied 0.31±0.037, 0.71±.082, and 1.069±0.27 g COD /1.d respectively at constant hydraulic retention time (HRT) of 96 hrs, in order to study their effects on biogas production, removal efficiency of 1,4-dioxane and COD. The results indicated that the biogas production obtained at three applied OLR were 14.7 ± 0.17 l/ d., at OLR 1.069±0.27 g COD /1.d., 7.5 ± 0.2 l/ d., at OLR 0.71±.082 g COD /1.d., and of 5.5 ± 0.11 l/d at low OLR, 0.31±0.037 g COD /1.d respectively. Biogas is produced by the metabolism of acetic acid, lactic acid, and a small amount of propionic acid. Moreover, CODt and CODs removals efficiency were 79% and 80% at OLR 0.71±.082 g COD/l.d. The highest removal efficiencies were recorded at OLR 0.71 g COD/l.d. Effect of C/N ratio and heavy metals on biogas production were highlighted. Additionally, different HRTs were studied, to carefully describe the performance of UASR.
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