Due to climate change, population growth, industrialization, urbanization, and water contamination, it is becoming more difficult to secure and supply clean and safe drinking water. One of the challenges many water utilities often face is the taste and odor (T&O) problem in drinking water treatment plants, mostly associated with geosmin and 2-MIB. These representative T&O compounds are mainly produced by the metabolism of blue-green algae (cyanobacteria), especially in summer. In this study, the correlation between algae blooms and T&O compounds was identified in the intake and raw water of a large-scale water treatment plant in the Republic of Korea. The removal efficiency of geosmin and 2-MIB by each treatment process was intensively evaluated. According to the obtained results, ozonation and granular activated carbon (GAC) adsorption were more effective for removing the troublesome compounds compared to other water treatment processes, such as coagulation/flocculation, filtration, and chlorination. Because of their seasonal concentration variation and different removal rates, optimal operation methods need to be developed and implemented for drinking water treatment plants to solve the T&O problems.

中文翻译：

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大韩民国通过大规模饮用水处理工艺去除Geosmin和2-MIB

由于气候变化，人口增长，工业化，城市化和水污染，获取和供应清洁安全的饮用水变得越来越困难。许多自来水公司经常面临的挑战之一是饮用水处理厂的味道和气味（T＆O）问题，其中大多数与土臭素和2-MIB有关。这些代表性的T＆O化合物主要由蓝藻（蓝藻）的代谢产生，尤其是在夏天。在这项研究中，确定了大韩民国一家大型水处理厂的进水和原水中藻华和T＆O化合物之间的相关性。深入评估了每种处理方法对土臭素和2-MIB的去除效率。根据获得的结果，与其他水处理工艺（例如凝结/絮凝，过滤和氯化）相比，臭氧化和颗粒状活性炭（GAC）吸附对于清除麻烦的化合物更为有效。由于它们的季节性浓度变化和去除率不同，因此需要为饮用水处理厂开发和实施最佳操作方法，以解决T＆O问题。