Po Wing Road Government Quarters, Fanling, New Territories

The works involved the construction of two residential towers at the Po Wing Road Government Quarters at Fanling, New Territories.

Environmental Concern

The major concern was muddy water arising from bore piling and wheel-washing activities, which may block the downstream drainage if discharge untreated.

Measures Adopted

Treatment - Muddy water from bore piling and wheel washing was pumped to a sophisticated wastewater treatment system before discharging into the storm water drain. The treatment process included preliminary sedimentation, polymer coagulation, sedimentation and neutralisation. Sludge generated by the process was disposed of at the landfill.

Flow Diagram of the AquaSed Treatment System Courtesy of Hong Kong Productivity Council

On-site AquaSed Wastewater Treatment System at Cost $300,000

Observations & Achievements

The wastewater treatment plant was in good working condition and the effluent showed no excessive suspended solids. This shows usefulness of sophisticated package treatment plant for a small construction site in congested built up area where land space for conventionally designed treatment plant is inadequate.