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Low‐Cost Solutions for Trihalomethane Compliance
Author(s) -
Banks J.,
Wilson D.
Publication year - 2002
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/j.1747-6593.2002.tb00414.x
Subject(s) - trihalomethane , water treatment , environmental science , process engineering , water quality , waste management , biochemical engineering , environmental engineering , engineering , ecology , biology
Compliance with the new trihalomethane standard is a major item in Yorkshire Water's water‐quality capital programme using conventional granular activated‐carbon filters as the final stage of treatment. Detailed investigations were carried out at three water‐treatment works to find an alternative solution which would ensure compliance at a lower cost and with minimum disruption to the existing treatment process. Low‐cost solutions were tailor made at each site, where possible modifying the existing process to improve the removal of organic material. The key to the success of this work was the use of ultraviolet light absorbance at 254 nm as a surrogate for precursors for the investigatory phase, making modifications easy and quick to evaluate, for modelling trihalomethane formation and, ultimately, by the plant engineer.