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Impact of source water quality on total organic carbon and trihalomethane removal efficiency in a water treatment plant: A case study of Upper Awash, Ethiopia

Journal of Water and Health 2024 12 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Emeru Assefa, S. Anuradha Jabasingh, Eyobel Mulugeta, Eyobel Mulugeta, Meseret Dessalegne, Meseret Dessalegne, Endale Teju

Summary

This study examined how source water quality affects the ability of a treatment plant in Ethiopia to remove organic carbon and reduce harmful byproducts called trihalomethanes. The researchers found that higher levels of metals and turbidity in the source water reduced treatment effectiveness. While not directly about microplastics, the findings are relevant because microplastics in source water can also carry organic pollutants and interfere with water treatment processes, compounding the challenge of providing safe drinking water.

Study Type Environmental

This study addresses the limited understanding of factors affecting the efficiency of water treatment plants in reducing trihalomethane (THM) formation through total organic carbon (TOC) removal, highlighting significant challenges in improving treatment effectiveness. The aim of this study was to examine the influence of water quality on the efficiency of water treatment plants to remove TOC and reduce THM formation. Linear regression and correlation analyses were conducted to examine the relationship between water quality parameters and THM concentrations. The results showed that there was a negative relationship between turbidity, metals, and TOC concentration with TOC removal efficiency. Positive correlations were found between parameters and the formation of THMs in water. Of these parameters, water temperature was observed to have relatively less influence on THM formation. It was observed that seasonal variations in water quality affect the efficiency of TOC removal and THM content in treated water. THM levels in chlorinated water were found to be within the permissible range of the World Health Organization's drinking water quality guidelines. However, it is still important to maintain continuous monitoring and take measures to reduce THMs. The model demonstrated a strong correlation (R<sup>2</sup> = 0.906) between predicted and measured THM values.

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