Anaerobic digestion for treatment of polyester wastewater with different organic loading rates (OLRs) | ||
| Aswan University Journal of Environmental Studies | ||
| Article 5, Volume 5, Issue 1, March 2024, Pages 69-86 PDF (557.12 K) | ||
| Document Type: Original Research | ||
| DOI: 10.21608/aujes.2024.258934.1205 | ||
| Authors | ||
| Mohamed Saad Mahmoud* 1; Mahmoud Abd-ELaziz Elsayed2; Mohamed Abbas Soltan3; Amr Mohamed Wahaballa3 | ||
| 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. | ||
| Keywords | ||
| up-flow anaerobic staged reactor; 1,4-dioxane; hydraulic retention times; organic loading rates | ||
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