Sharing Session on Water & WW Tech

Trade effluent discharge to watercourse/controlled watercourse is regulated by (1), while trade effluent discharge to PUBLIC SEWER is regulated by (2).

• 1. NEA

  2. 2. NEA

• 1. PUB

  2. 2. PUB

• 1. NEA

  2. 2. PUB

• 1. 1. PUB

  2. 2. NEA

What are Singapore's FOUR National Taps ?

• water from local catchment & Imported water from Malaysia

• NEWater & desalinated water

• all mentioned

The highest grade of water purification is for _________. The treated water is known as ultra pure water (UPW)

• Human consumption

• Wafer fab manufacturing

• Food and Beverage industry

• Agriculture

Ultrafiltration can be applied to remove _______.

• Turbidity & Suspended solids

• Bacteria , virus, parasites such as Cryptosporidium & Giardia

• Dissolved solids such as Na, Cl, Ca, SO4 etc.

Water with higher salinity will need _____ power consumption when it's treated with Reverse Osmosis (RO) Membrane.

• higher

• lower

• water salinity has no impact on power consumption when RO is applied.

Ion exchange can be used in _________.

• demineralization (remove minerals)

• Softening (remove hardness)

• Color removal in sugar purification

• Metals recovery from wastewater

Membrane Bioreactor (MBR) can be used to replace biological treatment processes (e.g. anaerobic, anoxic and aerobic treatment). True or False ?

• True

• False