A major Hong Kong sewage plant damaged by Typhoon Mangkhut will not be fully repaired until the end of the year, but drainage officials are racing to upgrade effluent treatment to safer levels.
Storm damage to pipes and treatment facilities at the Sai Kung Sewage Treatment Works was so serious last week that sewage treatment has been reduced to a “primary” level – basic filtering of grit, solid waste and suspended solids, which only eliminates half of the pollutants in raw...
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