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Greater Boston Drinking Water Quality - Comparison Of Full Scale And Pilot Study I: Monochloramine And Ph Change, Xin (Cindy) Huang, Irvine W. Wei, Windsor Sung
Greater Boston Drinking Water Quality - Comparison Of Full Scale And Pilot Study I: Monochloramine And Ph Change, Xin (Cindy) Huang, Irvine W. Wei, Windsor Sung
Irvine W. Wei
Massachusetts Water Resources Authority (MWRA) has been providing drinking water for Greater Boston area since 1985. The new John J. Carroll Treatment Plant came online on July 27th, 2005. Ozone instead of chlorine is now used for primary disinfection. MWRA has been monitoring the water quality before and after the new treatment plant was online. In this paper, quantitative comparison is presented between full scale data and data from a pilot study, which was carried out two years ago to study the impact on water quality from this change in treatment.
Pilot Study Of Greater Boston Drinking Water Quality Changes - Monochloramine And Ph Change, Xin (Cindy) Huang, Irvine W. Wei, Windsor Sung
Pilot Study Of Greater Boston Drinking Water Quality Changes - Monochloramine And Ph Change, Xin (Cindy) Huang, Irvine W. Wei, Windsor Sung
Irvine W. Wei
A pilot study was conducted from July 2001 to November 2003 to understand the impact of ozonation on monochloramine decay and pH change in the future Massachusetts Water Resources Authority's (MWRA1) drinking water system. The impact of the distribution system, which consists of old cast-iron pipes, was also investigated. Homogeneous and heterogeneous samples were taken from the Pipe Loop Pilot Plant (PLPP), which represented the best and the worst scenarios respectively, i.e. a very clean distribution system, or dead ends far from the main. The results suggested that corrosion and biological activity inside the pipe were the major causes of …