Pugazhendi Arulazhagan, Jamal Mamdoh T
Department of Marine Biology, Faculty of Marine Sciences, King Abdulaziz University, Jeddah, 21589 Saudi Arabia.
Center of Excellence in Environmental Studies, King Abdulaziz University, Jeddah, 21589 Saudi Arabia.
3 Biotech. 2023 Nov;13(11):351. doi: 10.1007/s13205-023-03772-z. Epub 2023 Oct 4.
The olive oil industry faces a major problem of treating the wastewater with high organic content and safe disposal. Olive oil industrial wastewater (OOIWW) consists of highly toxic environmental pollutants with high salinity. Saline olive oil industrial wastewater was treated using halophilic consortium in UMFC (upflow microbial fuel cell) mobilized with carbon felt as electrode. Total and soluble COD (chemical oxygen demand), total suspended solids and phenol content removal were studied at different organic loads (0.56, 0.77, 1.05, 1.26, 1.52 and 1.8 gCOD/L). UMFC with OOIWW was optimized at 1.52 gCOD/L for high organic removal and corresponding electricity production. Total COD, soluble COD, TSS and phenol removal were 91%, 89%, 78%, and complete removal of phenol was accomplished at the optimized organic load (1.52 gCOD/L). Correspondingly, the maximum bioenergy yield was 784 mV with 439 mW/m (power density) and 560 mA/m (current density), respectively. The presence of prominent halophilic exo-electrogens such as , , and potently treated the OOIWW and exhibited high energy yield.
橄榄油产业面临着处理高有机含量废水及安全处置的重大问题。橄榄油工业废水（OOIWW）含有高盐度的剧毒环境污染物。利用以碳毡为电极的上流式微生物燃料电池（UMFC）中的嗜盐菌群处理含盐橄榄油工业废水。研究了在不同有机负荷（0.56、0.77、1.05、1.26、1.52和1.8 gCOD/L）下总化学需氧量（COD）和可溶性COD、总悬浮固体及苯酚含量的去除情况。含OOIWW的UMFC在有机负荷为1.52 gCOD/L时实现了高有机物去除及相应的产电优化。在优化的有机负荷（1.52 gCOD/L）下，总COD、可溶性COD、总悬浮固体的去除率分别为91%、89%、78%，苯酚实现了完全去除。相应地，最大生物能产量为784 mV，功率密度为439 mW/m，电流密度为560 mA/m。诸如 、 、 和 等显著的嗜盐外生电gens的存在有效地处理了OOIWW并展现出高能量产量。
