ABSTRACT Chlorinated water from River Ganga is the main source of drinking water in Kanpur, India. But, this water contains a significant amount of disinfection by-products (DBPs) that include haloacetic acids (HAAs) as a major contributor, which pose a carcinogenic risk on long-term ingestion. Therefore, in order to control HAAs formation, different combinations of ozonation and bio-activated carbon filtration (BAC-filtration) were studied. The results elucidate that slight ozonation followed by BAC-filtration proved effective in reducing (75.8%) HAAs formation and meet the USEPA drinking standards. These findings open a path to explore cost-effective treatment techniques in continuous mode for safe drinking water.

中文翻译：

---

生物活性炭过滤和臭氧化对控制印度坎普尔恒河水氯化过程中卤乙酸形成的有效性

摘要来自恒河的氯化水是印度坎普尔的主要饮用水源。但是，这种水含有大量消毒副产物 (DBP)，其中包括卤乙酸 (HAA) 作为主要成分，长期摄入会造成致癌风险。因此，为了控制 HAA 的形成，研究了臭氧化和生物活性炭过滤（BAC 过滤）的不同组合。结果表明，轻微臭氧化后进行 BAC 过滤证明可有效减少 (75.8%) HAA 的形成并符合 USEPA 饮用标准。这些发现开辟了一条途径，可以探索在连续模式下安全饮用水的具有成本效益的处理技术。