RETRACTED: Simultaneous effects of firing temperatures and porogenic agent type on properties of low-cost ceramic membranes: Application in the treatment of pretreated and non-pretreated wastewater by brewery WWTP

Year: 2025

Type: article

Abstract: • Optimum formulation consists of: 85 % of NJB, 15 % of PKS and 15 % of MSS and 85 % of NJB, 7.5 % of PKS and 7.5 % • Hydraulic permeability varied from (12.58) to (701.77) L.h -1 .m -2 bar -1 • 96.96 and 97.60 % of BOD 5 was eliminated during filtration process • 96.96% and 98 % of COD was eliminated during filtration process • 89.79 and 88.16% of suspended solid • 64.70 % of total nitrogen • 89.02 % of total phosphorus. This work focuses on the study of membrane properties with increasing temperature and their efficiency in wastewater treatment pretreated and non- pretreated by the Brewery Wastewater Treatment Plant (WWTP) in Yaounde. The raw materials and ceramic membranes were characterized. The M3, M8 and M13 formulations were sintered at 1050, 1100 and 1150°C. The M8 membrane containing MSS pore-forming agents obtained at 1100°C was more satisfactory in terms of its high porosity of 53.64 %, its hydraulic permeability of 298.59 L.h -1 m -2 bar -1 and its pore diameter of 0.096 µm. It has produced impressive results with 97.88 % and 98 % of COD; 96.96 % and 97.60 % of BOD 5 ; 89.71 % and 88.16 % of suspended solids; 90.21 % and 90.65 % of turbidity values respectively for the non-pretreated and pretreated samples. This research has developed new ceramic membranes, offering potential solutions to the challenges of organic waste management and industrial wastewater treatment.

Source: Open Ceramics

DOI: 10.1016/j.oceram.2025.100854