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20 Hour Grade 1 and 2 Industrial Wastewater Licensing Exam Prep Course
Welcome
Welcome and Course Overview (4:23)
How the Course is Set Up (3:50)
Introduction
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Course Introduction (1:54)
About the Licensing Exam (6:50)
Registering for the Licensing Exam (0:55)
Basic Math for Wastewater Operators
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Introduction (3:38)
Math: Algebra and the ABC List of Equations, Abbreviations, and Conversion Factors (3:32)
Math is Rigid and Flexible (1:39)
Math: Fractions and Conversion Factors (6:55)
Math: Variables and Substitution (1:52)
Math: Scientific Notation (3:22)
Putting it all Together (5:25)
Math: Calculating Volumes of Cylinders and Cones (3:20)
Math Example: Conical Bottom Cylindrical Tank (2:50)
Math: Solving Problems by Yourself I(with an assist from me when you're done) (8:10)
Math Summary (1:48)
Basic Chemistry for Wastewater Operators
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Chemistry Overview (0:54)
Chemistry Introduction to Atoms and Elements (3:48)
Chemistry: Isotopes (5:00)
Chemistry: Introduction to the Periodic Table (1:29)
Chemistry: Periodic Table Rows and Columns (3:58)
Chemistry: How Atoms or Elements Behave (2:43)
Chemistry: Chemical Bonding and Quick Review (1:17)
Chemistry: Making Molecules (4:37)
Chemistry: The Water Molecule and Why it is Unique (4:41)
Chemistry: How Small is a Molecule Anyway (1:20)
Chemistry: Summary (0:54)
Laws and Regulations for Wastewater Treatment
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Overview and Introduction (0:52)
Definitions, Abbreviations, and Acronyms (3:45)
Why do we need Laws and Regulations anyway? (2:40)
Love Canal, Upstate New York (6:10)
Valley of the Drums, outside Louisville, Kentucky (2:00)
Cuyahoga River, Cleveland, Ohio (1:02)
Hinkley, California (3:23)
Formation of the Environmental Protection Agency (2:11)
Where does the EPA start? (3:52)
Protecting Our Receiving Waters (4:41)
Specific Prohibitions (3:34)
Wastewater Sources and Characteristics
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Wastewater Sources and Characteristics (3:24)
EPA Sets Minimum Wastewater Discharge Standards (1:50)
How a Municipal Wastewater Treatment Plant Works
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Introduction (2:52)
Background and History (2:47)
Interceptors and Screw Pumps (1:23)
Preliminary Treatment - Bar Racks (0:30)
Primary Treatment - Settling using Clarifiers (1:12)
Secondary Treatment - Aeration (2:15)
Secondary Treatment - Secondary Clarification (1:44)
Chlorination and Dechlorination (1:01)
Where do all the Solids go? (1:42)
Safety
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Safety Overview (2:59)
Safety Vocabulary and Definitions (5:59)
Safety Basics (3:24)
Laws to Protect Worker Safety (3:43)
Physical Hazards, Infectious Diseases, Confined Spaces, Oxygen Deficiency (8:16)
Dangerous Gases and Liquids (5:02)
Chemical Containment (3:29)
Fire, Fire Safety and NFPA Diamond Identification (4:09)
Electrical Safety (1:21)
Lock Out Tag Out (11:43)
Noise Protection and Keeping Everyone Safe (1:45)
Waste Prevention and Minimization
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Waste Prevention and Minimization Overview (2:28)
Vocabulary and Waste Prevention Strategy and Hierarchy (7:07)
Flow Measurement
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Flow Measurement Overview (1:06)
Flow Definitions and Vocabulary (5:08)
Why is Flow Measured and why is flow measurement important? (2:20)
Open Channel Flow Measurement - Primary Elements (9:25)
Open Channel Flow Measurement - Secondary Elements Part 1 (5:14)
Open Channel Flow Measurement - Secondary Elements Part 2 (5:31)
Closed Channel Flow Introduction (2:12)
Closed Channel Flow Measurement - Differential Pressure Devices (3:54)
Closed Channel Flow - Magnetic Devices (5:28)
Closed Channel Flow Monitoring - Acoustic Devices plus Calibration (5:40)
Preliminary Treatment
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Preliminary Treatment - Introduction and Vocabulary (4:41)
Preliminary Treatment - Flow Equalization (3:44)
Preliminary Treatment - Screening (5:05)
Preliminary Treatment - pH Adjustment - What it is, Mathematical Relationship, and Why pH measurement is required (6:43)
Preliminary Treatment - pH is a logarithmic scale (3:10)
Preliminary Treatment - How pH is measured (3:34)
Preliminary Treatment - pH probe calibration (7:24)
Preliminary Treatment - Problems encountered with pH probes (7:00)
Preliminary Treatment - pH control system types - On - off and Proportional pH control (7:05)
Preliminary Treatment - pH control systems - Controlling pH on the fly (7:09)
Preliminary Treatment - pH neutralization - Square vs Round tank designs (6:04)
Preliminary Treatment - pH adjustment - Response time and Containment (4:20)
Treatment of Metal Waste Streams
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Introduction, Vocabulary, and Definitions (5:39)
Metal Waste Streams Overview (2:53)
Understanding Plating (4:04)
Hydroxide and Sulfide Precipitation (3:19)
Hydroxide Precipitation - Overview and Step 1 of the process (4:42)
Hydroxide Precipitation - Step 2 (2:11)
Hydroxide Precipitation - Step 3 (2:01)
Hydroxide Precipitation - Steps 4 - 5 (2:45)
Hydroxide Precipitation - Step 6 and Schematic diagram (2:51)
Hexavalent Chrome Removal - Overview (2:32)
Hexavalent Chrome - Treatment and Removal Steps (2:56)
Hexavalent Chrome Removal Summary (1:55)
What is Cyanide and why is it bad for us? (3:12)
Cyanide Oxidation Steps (2:49)
Cyanide Oxidation Summary, Overall Metals Removal Diagram (2:53)
Removal of Settled Solids and Handling these Solids (2:55)
Solids Dewatering (1:21)
Treatment of Rinse Waters Containing Precious Metals (3:02)
Instrumentation and Controls
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Instrumentation Introduction Vocabulary, and Definitions (6:07)
Session Objectives and Types of Measurement Systems (5:07)
How Sensors Work - ORP and Pressure Sensors (6:12)
How Sensors Work - Level and Temperature Sensors (7:17)
Understanding What Instruments are Telling Us - Part 1 (5:27)
Understanding What Instruments are Telling Us - Part 2 (4:55)
Industrial Waste Sampling and Monitoring
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Monitoring Vocabulary, Definitions, and Overview (3:29)
Monitoring at a Wastewater Treatment facility, Overview and Solids Testing (6:38)
Biochemical Oxygen Demand Testing (9:26)
Temperature Monitoring and Mini Summary (2:42)
Keeping a Wastewater Treatment Plant Running Smoothly (5:46)
When Unexpected Contaminants are Discovered (2:59)
Monitoring for Industrial Wastewater Dischargers (10:55)
Chain of Custody, Testing by Certified Laboratories (4:31)
Compressed Air Systems
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Compressed Air Systems Introduction (2:46)
What is Compressed Air Anyway? (3:35)
Compressed Air Uses (3:26)
Positive Displacement Compressors (4:53)
Compressed Air Contaminants (2:37)
Oils (5:01)
Moisture (3:43)
Moisture Removal (5:45)
Particles (3:33)
Compressed Air System Configurations (4:35)
Operation and Maintenance of Municipal Wastewater Treatment Plants
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Maintenance Programs Overview (3:25)
Pumps
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Pumps Introduction (4:24)
Positive Displacement Pumps (7:55)
Centrifugal Pumps (3:04)
Understanding Pump Curves (4:47)
Pump General Rules and Troubleshooting (5:04)
Valves
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Valves Introduction (2:30)
Ball Valves and Gate Valves (4:46)
Globe Valves and Butterfly Valves (2:11)
Needle, Diaphragm, and Pinch Valves (2:42)
Plug, Check, and Foot Valves (4:27)
Actuated Valves, Control Valves, Regulators and Relief Valves, Seats and Packings (6:34)
Summary
Congratulations on Finishing the Course! (1:46)
Math: Calculating Volumes of Cylinders and Cones
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