Matsulu WWTP was found to have the highest E. The White River, which is located on the upper stream, recorded the highest COD levels of 97.941 mg/L and 120.588 mg/L in autumn and spring, respectively. Data analysis was carried out using Microsoft Excel 2019, Seaborn package, and Python Spyder (version 3.8). The rainfall data was acquired from the South African Weather Services from 2016 to 2021, which contains daily rainfall measurements for each sampling site. To cover the spatial distribution of the pollutant in the Crocodile River, water samples were collected from 2016 to 2021 at three strategic sites. coli and COD in the effluent wastewater discharged from the Crocodile River, Mpumalanga Province, South Africa. This study sought to investigate the effect of rainfall on E. Wastewater treatment plant (WWTP) efficiency challenges are associated with susceptibility to seasonal variations that alter microbial density in wastewater. Escherichia coli and Chemical Oxygen Demand are used as indicators for the performance of wastewater treatment plants.
The declining state of municipal wastewater treatment is one of the major contributors to the many pollution challenges faced in most parts of South Africa.
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