SAU TECH ACADEMICS - ARKANSAS ENVIRONMENTAL ACADEMY
Wastewater Class II

NEED - to - KNOW
(Need to know all Class I N-T-K plus the following:)

1. Regulations
   • What federal agency has the duty of developing and enforcing regulations to protect nations' waters?
   • What is the name of the permitting system called that regulates the discharge of pollutants?
   • Where are the environmental regulations located?
   • Major goals of the Federal Water Pollution Control Act of 1972
   • Concentration-base standards
   • Categorical regulations
   • Storm water from pipelines are regulated by?
   • The Resource Conservation and Recovery Act main statute convening
   • Penalties for a noncompliance are covered in what federal regulations?
   • Where is toxic waste disposed?
   • Material Safety Data Sheet
   • Conventional pollutants
2. Industrial
   • The most valuable tool in controlling chemical treatment process
   • Type of liquid feeder pump
   • Chemicals used to improve settling are
   • Rust control equipment
   • Cross-connection control
   • What type of industrial screen has no moving parts.
   • Industrial backlashing to scrub the surface mat
   • Sedimentation
   • Coagulation
   • Flocculation
   • What are the sizes of Colloidal particles?
   • Stirring during flocculation
3. Biology/Chemistry/Laboratory
   • Test used to estimate the organic loading
   • Hypochlorinator
   • Chlorine leak detection
   • Need for dechlorination?
   • pH
     1. Range of pH?
     2. Net change per-unit of pH
   • Disease-producing bacteria
   • Oxygen demand
   • Types of dechlorinating agents
   • Largest single cause of accidents in labs
   • Specific Gravity
   • Chlorine gas
   • An Imhoff cone
   • Blanks
   • Percolation
4. Math
   • Units of flow measurements
   • Detention time
   • Pumping rates
   • Volume
     1. Gallons
     2. Ft3
   • Temperature calculations
   • Water Horse Power
   • Dosage
     1. 100% concentration
     2. Less than 100% concentration
   • Type and sizes of Chlorine cylinders
   • Demand
   • Velocity
   • Hydraulic loading of trickling filters
   • BOD calculations
   • A weir overflow rate
5. Operation & maintenance
   • Screen shutdown procedures
   • Lock out and tag out
   • Manhole safety
   • Chlorine leakage
     1. Equipment
     2. Method
     3. Ventage
6. Clarifiers
   • Average detention time
   • Location of a primary unit
   • Location of a secondary unit
   • Wasting
7. Trickling Filters & RBC's
   • Filter slime
   • Major parts of Trickling filters & RBC's
   • Types of media used
   • Units of loading for trickling filters
   • Operation problems of trickling filters
8. Metering
   • Types of flow metering devices
   • Chlorine metering devices
   • Chart recording
9. Activated sludge
   • Observations
   • Types of aeration
   • Sludge age
   • The term "Activated"
10. Oxidation ditches
    • Dissolved oxygen concentration
    • Parts
    • Controlling MLSS
    • Modification of what type of process
11. Ponds
    • Types
    • Effect of wind action
    • Most common type of pond
    • Toxic waste
    • Top of a levee
    • Algae bloom
12. Miscellaneous
    • Screening
    • Doctor Blade
    • Short Circuiting
    • Package plants
    • Municipal MLSS concentration
    • Shock load