Cumulative Final Exam Review Jeopardy

Cumulative Final Exam Review Jeopardy

Waterworks Operations IIIWQT 134

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Source H2O Pretreatment CoagulationIntake/Screens

FINAL JEOPARDY

Source Water $100

Plant whose intake screen is situated in the “sweet spot” of the Willamette river

Source Water $200

Plant that uses GAC to treat organics from its

source water

Source Water $300

1996 flooding of this river destroyed a

pump station

Source Water $400

Two plants that remove water from

the Molalla river

Source Water $500

Three plants we visited that use the Clackamas river for

source water

Source water $100-AnswerWhat is the

Willamette Water Treatment Plant?

Source water $200-Answer

What is the Willamette Water Treatment Plant?

Source water $300-Answer

What is the Molalla River?

Source water $400-Answer

What is the Molalla Water Treatment Plant and the Canby Water

Treatment Plant?

Source water $500-Answer

What is the Clackamas, North Clackamas, and Lake Oswego Water Treatment Plants?

Intake/Screens $100

Purpose of using screens?

Intake/Screens $200 Type of screen that has

straight steel bars welded at both ends at

60-80o angles

Intake/Screens $300Type of screen

shown here

Intake/Screens $400

Type of instrument shown here

Intake/Screens $500Type of screen shown

here

Intake/Screens $100-AnswerWhat is used to

remove debris and prevent clogging of

the intake.

Intake/Screens $200-Answer

What is a bar screen?

Intake/Screens $300-Answer

What is a bar screen?

Intake/Screens $400-Answer

What is traveling wire screen?

Intake/Screens $500-AnswerWhat is a fine-wire mesh

screen?

Pretreatment $100

Mechanical sand and grit removal

device shown here

Pretreatment $200

Function of this device?

Pretreatment $300

This 25 year old device is used

before filtration

Pretreatment $400

The device shown here for pretreatment

before membrane filtration?

Pretreatment $500

A concave depression in the

bottom of a structure to collect

sediment ?

Pretreatment $100-Answer

What is the cyclone degritter?

Pretreatment $200-Answer

What is to prevent short circuiting, slows the

movement of water down to aid in floc removal?

Pretreatment $300-Answer

What is a redwood baffle?

Pretreatment $400-Answer

What is a strainer?

Pretreatment $500-Answer

What is a sand trap?

Coagulation $100

_________ mixing occurs during coagulation

Coagulation $200Typical charge on

troublesome particles to be removed from water

Coagulation $300

Two trivalent ions used for

coagulation

Coagulation $400

Name four types of coagulants

Coagulation $500

Three functions/advantages of using anionic

polyelectrolytes polymers

Coagulation 100 $ Answer

What is rapid or flash mixing?

Coagulation $200-Answer

What is negative?

Coagulation $300-Answer

What are iron and aluminum?

Coagulation $400-Answer

What are ALUM or aluminum sulfateACH or aluminum chlorohydrateFerric chloride,Ferric or ferrous sulfate,Aluminum polymers,Cationic, anionic, or nonionic polyelectrolytesSodium aluminate,Sodium silicate

Coagulation $500-AnswerWhat are increased floc size,

improved settling, stronger floc. Not effected by pH, alkalinity,

hardness, or turbidity.

Final Jeopardy

Coagulant Aids

Final JeopardyWhat is a coagulant

aid and what are three types of coagulant

aids??

Final Jeopardy-Answer• They are Activated silica, weighting

agents like bentonite clay, and polyelectrolytes.

• Stronger more settable flocs• Overcome the effect of temp drops that

slow coagulation• Reduce the amount of coagulant needed• Reduce the amount of sludge produced.