– Sewage drainage system built separately from rainwater drainage system.
– Standard for calculation of wastewater is equal to 80% of water supply standard for industrial zones.
– Total wastewater flow is 6,015m3/day.
– Building a centralized wastewater treatment station with a capacity of 6,015m2/day, ensuring wastewater treatment for the entire industrial park.
– Network: Arrange sewer lines Ø300, Ø400 placed underground along the sidewalk to collect wastewater leading to the centralized wastewater treatment area of the industrial park for treatment.
Wastewater is treated in two levels:
+ Level I: Treated separately in each work according to the standards set by the Industrial Park Management Board and approved by the competent authorities before discharging into the common wastewater drainage network.
+ Level II: Treatment at a centralized treatment area of an industrial park that meets Vietnamese Standards QCVN 40:2011/BTNMT limit A, leading to a conditioning reservoir for control before being released into the natural environment.
– Build manholes for post-treatment drainage pipes outside secondary enterprises and industrial parks to facilitate inspection and supervision of the community.
The centralized wastewater treatment plant is responsible for treating pre-cleaned wastewater from enterprises operate in SLICO Industrial Park according to input standards QCVN 40:2011 - column B and ensuring treatment of output wastewater meet Column A standards according to QCVN 40:2011.