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Chemical smell should be reduced
By Bob Yang |
December 2, 2010, Thursday
|
Print Edition
Print Edition
PROVIDING a cleaner water supply from the Qingcaosha Reservoir may reduce the chemical smell in the city's tap water, but it's not a long-term solution, an expert said.
Shanghai has one of China's longest water pipeline systems, which means chlorine added to ensure water safety could dissipate before supplies reach homes. To prevent this, water engineers add extra chlorine at plants.
Using water from the reservoir could help reduce the smell, for local water plants can add less chlorine as they are dealing with a cleaner source, Gao Naiyun, director of the Environmental Science and Engineering College of Tongji University told a forum yesterday.
A long-term solution would be to add small amounts of chlorine at different sections of the pipe system, he said.
Meanwhile, the 5 million residents whose tap water source will remain the Huangpu River were assured that "every drop will go through advanced water treatment," by Zhang Dong, of a research institution under the Shanghai Chengtou Corp, which owns most of local water plants.
Shanghai has one of China's longest water pipeline systems, which means chlorine added to ensure water safety could dissipate before supplies reach homes. To prevent this, water engineers add extra chlorine at plants.
Using water from the reservoir could help reduce the smell, for local water plants can add less chlorine as they are dealing with a cleaner source, Gao Naiyun, director of the Environmental Science and Engineering College of Tongji University told a forum yesterday.
A long-term solution would be to add small amounts of chlorine at different sections of the pipe system, he said.
Meanwhile, the 5 million residents whose tap water source will remain the Huangpu River were assured that "every drop will go through advanced water treatment," by Zhang Dong, of a research institution under the Shanghai Chengtou Corp, which owns most of local water plants.
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