Water Treatment
What is disinfection commonly achieved with?
Chlorine
What is residual pressure?
Pressure while water is flowing
What is sludge?
Settled solids from treatment
What is the purpose of a sewer collection system?
Transport wastewater to treatment
What does SCADA & OT stand for?
Supervisory Control and Data Acquisition & Operational Technology
What is turbidity?
Measure of water clarity
What does a fire hydrant primarily provide?
Emergency water supply and flushing
What is screening in wastewater treatment?
Removal of large debris
What is a manhole used for?
Access to sewer system
Name a type of membership
Individual, Certified Operator, Small Systems, Student, AWWA, WEF
What is filter backwashing?
Cleaning filter media by reversing flow
What condition causes backsiphonage?
Negative pressure in the system
What is secondary treatment?
Biological removal of organic matter
What maintenance activity prevents sewer blockages?
Routine cleaning and flushing
Name a competition that takes place at the BCWWA Annual Conference
Tap Water Taste Test, Operator Challenge
What indicates a filter needs backwashing?
Increased head loss
What is a common method for controlling water hammer?
Slow valve closure
What is dissolved oxygen (DO) used for?
Supporting aerobic microorganisms
What is a common cause of sewer blockages?
Grease buildup
Name one of BCWWA's Committees
Conference Planning, Cross Connection Control, Drinking Water, Reconciliation, SCADA & OT, Student Design Competition, Young Professionals
Short-circuiting in a sedimentation basin results in...
Reduced treatment efficiency
A main break repair requires what before returning to service?
Disinfection and bacteriological testing
Low DO in aeration tanks will result in...
Poor biological activity
Corrosion in sewer pipes is often caused by...
Hydrogen sulfide converting to sulfuric acid
Name BCWWA's 3 Conferences
Annual Conference, Yukon, SCADA & OT