Comparison of drinking water by type and characteristics
Spring Water (ground water)
Types
- Natural water, mineral water, spring water, water flowing between rocks, etc. (Chojeong Mineral Water, Osaeg Mineral Water)
Characteristics
- Less turbidity and less bacterial contamination.
- High mineral content.
- Low and constant temperature.
- Low color.
- Consistent water quality and quantity.
Contamination Source
- Hazardous material by soil contamination
- Possible contamination by nitrate nitrogen and bacteria
Drinking Spring Water
Characteristics
- Conservation beverage with treated spring water (commercial bottled water)
Production Process
- Intake ground water
- Storage tank
- Sand filtration device
- Ion exchange resin
- Disinfection (ultraviolet)
- Bottle injection
- Delivery and sales
Cause of Contamination
- Inadequate water source
- Contamination during the distribution process
- Difficult to store long time
Drinking Water
Characteristics
- Source water from streams and surface water of reservoir
- Supplied by water pipes
- Health safety with strict quality control
Cause of Contamination
- Contamination of water source
- Water quality deterioration in the treatment process
- Contamination in the distribution process
- Contamination of water tanks in the apartments
- Contamination of piping by corrosion
Water from water purifier
Characteristics
- Water treated by physical, chemical and biological processes
Production Process
- filtration, sorption, ion exchange, and disinfection
- classification by treatment capacity: small, residential, group
- classification by source water distribution: storage, foot type, directly coupled type
- classification by purification method: natural filtration, filter filtration, ion exchange resin, reverse osmosis, etc
Cause of Contamination
- Contamination from operation and maintenance: regular inspection, replacement of parts
※ Filters: activated carbon, microfiltration, ultrafiltration