Transcript Water Quality Vocabulary Oct 18, 2011

Water Quality Vocabulary
Oct 18, 2011
• Water regulations- laws that have been
passed to protect water quality in the US
and North Carolina.
• The Clean Water Act- A law passed in
1972 that focused on protecting surface
waters such as lakes and rivers.
Water Quality Vocabulary
Oct 19, 2011
• filtration- the first step of water treatment.
Passing water through a screen to remove
large particles.
• floc- Alum is added in the second step of
water treatment that cause sticky globs
called flocs to form from suspended solids.
Water Quality Vocabulary
Oct. 20, 2011
• Coagulation- the process of water
treatment where particles stick to flocs and
then sink to the bottom.
• Concentration- the amount of one
substance by certain volume in another.
Water has limits in concentration of certain
substances.
Water Quality Vocabulary
Oct 21, 2011
• Septic tank – an underground tank that
contains bacteria to treat household
wastewater.( Contain scum or used water
and sludge or solid matter )
• Leach field- the area in the yard that
contains the used water from septic tank
pipes.