Water Treatment
What is sedimentation?
Settling of particles by gravity
Primary purpose of a water distribution system?
Deliver potable water to consumers
What is BOD?
Measure of organic pollution
Type of sewer that carries only wastewater?
sanitary sewer
Where is the BCWWA 2027 Annual Conference?
Victoria
What is coagulation?
Adding chemicals to destabilize particles
What is static pressure?
Pressure when no water is flowing
What is an aeration tank used for?
Supplying oxygen to microorganisms
What is infiltration?
Groundwater entering through defects
How many water professionals does BCWWA represent?
over 4700
Purpose of flocculation?
Form larger particles for settling
What is a looped system advantage?
Improved circulation and reliability
What is activated sludge?
Microbial biomass treating wastewater
What is inflow?
Stormwater entering through direct connection
Name of BCWWA's print publication
Watermark
What does disinfection do?
Inactivate pathogens
What is the purpose of a pressure reducing valve (PRV)?
Reduce downstream pressure
What is wasting sludge (WAS)?
Excess sludge removed from system
What is a force main?
Pressurized sewer pipe
Name one of the 4 priority areas of the BCWWA's Strategic Plan
Priority 1: Education
Priority 2: Networking
Priority 3: Advocacy
Priority 4: Organizational Sustainability
If pH is too high, chlorine disinfection...
Becomes less effective
A dead-end main is problematic because it?
Allows stagnation and loss of residual
High ammonia in effluent indicates?
Incomplete nitrification
What condition promotes hydrogen sulfide formation?
Anaerobic conditions
Year the BCWWA was established
1973