Quiz 1

• What is the difference between dissolved and suspended compounds? Inorganic and organic?
• What problems can dissolved iron in tap water cause?
• What does the bicarbonate-carbonate system control in natural waters?
• What is Alkalinity?
• What is Hardness?
• What is Conductivity?
• What is Turbidity?
• What kinds of problems can be caused by unstable water?
• What kinds of problems can be caused by the presence of organic compounds in water?
• How is organic content measured?
• What kinds of problems can be cause by the presence of microorganisms in water?
• What kinds of microorganisms can be found in water?
• What are indicator organisms? Why are they used?

Quiz 2 (Only 4.6)

• The design capacity of a water treatment plant is generally based on what water demand?
• How is future water demand perdicted?
• What are the components of municipal water demand?
• Why and how does municipal water demand fluctuate?
• What is annual average day demand? Maximum day demand? Peak hour demand?
• What is fire demand? What design does it influence?

Quiz 3

• What are the different types of intake structures? What do they do? How are they different?
• What factors are important in intake-site selection?
• What factors are important in intake design?
• What is the purpose of screening?
• What are the three types of screens? How are they used?
• What is aeration?
• What are the different types of aerators?
• What is equilibrium? How are equations 6.1 and 6.2 used to develop key design considerations for aerators?
• What is aeration used for?

Quiz 4

• What is the size range for Colloids?
• What are Electrostatic Forces, van der Waals Forces, and Brownian Motion?
• What is Coagulation? What are the five mechanisms of coagulation?
• What is the Solubility Product?
• What is Water Softening?
• How are Iron and Manganese removed by Oxidation?
• What is the purpose of Rapid Mixing? How is it accomplished?
• What is the Velocity Gradient? What is the Detention Time? How are they used in the design of Rapid Mix units?
• What is Floculuation? How is it accomplished?
• How are the velocity gradient and detention time used in the design of floculation basins?

Quiz 5

• What are Type I, II, III, and IV Sedimentation?
• What is terminal settling velocity? To which type of settling does it best apply?
• What are the characteristics of an ideal settling basin?
• What is the Inlet Zone, Settling Zone, Sludge Zone, and Outlet Zone?
• What is the Overflow Rate?
• What is a batch settling test performed? How is it used to design settling tanks for Type II conditions?
• What is a tube settler? A solids-contact device?
• What are the major sedimentation design parameters (see Section 9.3 and Table 9-6)?
• What is a launder trough? a weir? What are they used for?

 

Quiz 6

• What 4 filtration mechanisms are described in your text?
• What is the difference between slow and rapid sand filters? gravity and pressure? downflow and upflow?
• What types of media are used in filters?
• What is the difference between declining-rate and constant-rate filters? Variable-level and constant-level?
• What is an effluent-controlled constant-rate filter?
• What is an influent-controlled constant-rate filter?
• What is an influent-controlled declining-rate filter?
• What is an effluent-controlled declining-rate filter?
• What happens to the head loss through a filter media during a filter run? Why?
• When must a filter be cleaned?
• What is backwashing? What happens to the media during backwashing?

Quiz 7

• What is the purpose of disinfection?
• What disinfectants are used in water treatment?
• Which one has the highest oxidation potential?
• What is the "CT value"?
• How is T10 determined and why is it important with regards to chlorination?
• What is the inactiviation ratio?
• How are disinfection basins designed to ensure a good CT?
• What are disinfection by-products?
• What happened in Milwaukee in 1993?