Impact of Baffle Walls on Area and Hydraulic Detention Time Needed for Wastewater Stabilization Ponds at Different Pollutant Loads

Year 2022, Volume: 5 Issue: 2, 99 - 108, 31.12.2022

Hafiz Qasim Ali Osman Üçüncü

Abstract

This paper mainly presents the in-depth analysis performed to explore the effect of baffle walls (BWs) on the requirement of the area and hydraulic detention time (DT) for wastewater stabilization ponds (WSPs). In addition, the influence of various concentrations of fecal coliforms and BOD5 is also presented. The meteorological parameters used to perform the analysis represent Ayvadere, a neighborhood in Arakli city of the Trabzon Province, Turkey. There were 12 different combinations of fecal coliforms and BOD5 influent loads. The analysis also included 3 different configurations of ponds, 6 various numbers, and 5 different lengths of the BWs, with which 720 analyses were performed. Configuration 1 gave minimum area and DT by meeting all the WSPs design and irrigation class-B effluent standards. There were 2 BWs with a length of 50 % of the design length of facultative ponds. Moreover, fecal coliforms and BOD5 were 106 (MPN/100 ml) and 300 (mg/l) simultaneously. According to the findings of the study, increasing the number and length of BWs reduces the area and DT required for WSPs. Furthermore, the results also show that the need for both things increased by increasing the pollution load. The cost of BWs is an essential factor compared to the decrease in area. So, an optimization study is recommended using various methods available in the literature. Besides, an examination must be conducted experimentally to compare the results of the analysis performed in this research.

Keywords

Baffle walls, Biochemical Oxygen Demand, Fecal Coliforms, Mathematical Analysis, Wastewater Stabilization Ponds

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