International Journal of Science, Engineering and TechnologyAuthors: Aboajela Musbah Kajaman
Abstract: To reduce energy consumption, and to achieve the desired denitrification, the activated sludge process sometimes needs to operate at low dissolved oxygen concentrations. The ASM2d model describes the activated sludge process during different phases in a sequencing batch reactor. A comprehensive floc model remains lacking despite the widespread study of enhanced biological phosphorus removal. As a result, the integrated system model is developed to understand the impact of floc at low DO concentrations, during biological nitrogen and phosphorus removal. Additionally, optimisation of parameters and effectiveness factors for developing of the ASM2d with floc model could be achieved by controlling sludge retention time (SRT), particularly during the activated sludge process. In a wastewater treatment plant, the dissolved oxygen was controlled at a low concentration, and its dispersion coefficient into the floc is 〖1.2×10〗^(-4) m^2/day. This study aims to optimise the activated sludge process, which is critical for efficient wastewater treatment by controlling the SRT and the amount of sludge access. The objective is to predict process behaviour under various operational configurations, based on differing sludge wasting times.
DOI: https://doi.org/10.5281/zenodo.20268292
