Measures
Adopted
Treatment
- Lagoons were provided to allow sedimentation and removal
of suspended solid. Chemical agents and treatment plant with
vortex unit and coalescing plates were used to enhance removal
of suspended solids.
Dust
Screen - Open stockpiles of sand and soils from excavation
were covered by tarpaulin to prevent storm runoff from washing
across exposed surfaces. To prevent erosion caused by rainstorms,
exposed surfaces and temporary access roads were protected
by crushed stones and gravel.
Recycling
- High-pressure water jet was used for vehicle and wheel washing.
Wastewater generated was recycled to reduce the volume of
wastewater discharged.
Monitoring
- Self-monitoring of effluent quality was conducted regularly
to ensure that the quality of effluent discharged met the
relevant standards.
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