# SRJC Course Outlines

 9/9/2024 7:33:39 AM WWTR 112 Course Outline as of Fall 2023 Changed Course CATALOG INFORMATION Discipline and Nbr:  WWTR 112 Title:  MATH FOR WATER TECH Full Title:  Math for Water and Wastewater Technology Last Reviewed:2/13/2023

 Units Course Hours per Week Nbr of Weeks Course Hours Total Maximum 3.00 Lecture Scheduled 3.00 17.5 max. Lecture Scheduled 52.50 Minimum 3.00 Lab Scheduled 0 6 min. Lab Scheduled 0 Contact DHR 0 Contact DHR 0 Contact Total 3.00 Contact Total 52.50 Non-contact DHR 0 Non-contact DHR Total 0

 Total Out of Class Hours:  105.00 Total Student Learning Hours: 157.50

Title 5 Category:  AA Degree Applicable
Repeatability:  00 - Two Repeats if Grade was D, F, NC, or NP
Also Listed As:
Formerly:  ENVT 112

Catalog Description:
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In this course, students will learn the practical application of mathematical calculations for hydraulics, chemicals, and solids used in the design, operation, process control, and maintenance of water and wastewater distribution systems and treatment facilities.

Prerequisites/Corequisites:

Recommended Preparation:

Limits on Enrollment:

Schedule of Classes Information
Description: Untitled document
In this course, students will learn the practical application of mathematical calculations for hydraulics, chemicals, and solids used in the design, operation, process control, and maintenance of water and wastewater distribution systems and treatment facilities.

Prerequisites:
Recommended:
Limits on Enrollment:
Transfer Credit:
Repeatability:00 - Two Repeats if Grade was D, F, NC, or NP

ARTICULATION, MAJOR, and CERTIFICATION INFORMATION

 Associate Degree: Effective: Inactive: Area: CSU GE: Transfer Area Effective: Inactive: IGETC: Transfer Area Effective: Inactive: CSU Transfer: Effective: Inactive: UC Transfer: Effective: Inactive: C-ID:

Certificate/Major Applicable: Both Certificate and Major Applicable

COURSE CONTENT

Student Learning Outcomes:
At the conclusion of this course, the student should be able to:
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1. Perform calculations common to the fields of water distribution technology, water treatment technology, and wastewater treatment technology.
2. Use a spreadsheet program such as Excel to perform calculations.

Objectives: Untitled document
At the conclusion of this course, the student should be able to:
1. Convert between common units of time, mass, length, area, volume, and temperature.
2. Apply general mathematical concepts to calculations common in the water and wastewater industry, such as calculation of: areas, volumes, mass, density, specific gravity, ratios, percentages, median and average values, concentrations, flows, pressures, velocities, percent composition, chemical quantities, dosage, pumping rates, detention times, loading rates, efficiencies, and power usage.
3. Complete representative mathematical portions of the state certification exams for: Water Distribution System Operator (Grade 1 or 2), Water Treatment Operator (Grade 1 or 2), and Wastewater Operator (Grade 1 or 2).

Topics and Scope
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I. Units and Unit Conversion with English and Metric Systems
A. Length, areas, and volumes
B. Mass, density, and specific gravity
C. Time and flow rates
D. Temperature
E. Velocity and pressure
F. Price and unit price
G. Power and power cost
H. Dimensional analysis
II. Basic Arithmetic
A. Fractions, decimals, and percentages
B. Areas and volumes
C. Ratios and proportions
D. Exponents
III. Intermediate Arithmetic
A. Mean, median, and mode
B. Weighted average
C. Efficiency
D. Algebraic variable isolation
IV. Chemistry and Related Calculations
A. pH
B. Concentrations
C. Dosages
D. Preparation of chemical solutions
V. Pumping Calculations
D. Brake and motor horsepower
VI. Collection Calculations
A. Average and per capita flow
B. Flow composition and velocity
C. Wet well capacity and pumping rate
D. Grit chamber and sand trap flow velocity and detention times
E. Industrial discharge equivalent population
VII. Primary Treatment Calculations
B. Biological Oxygen Demand (BOD)
C. Suspended Solids (SS) and Total Dissolved Solids (TDS)
E. Weir overflow rate
VIII. Treatment Pond Calculations
A. Volume and evaporation rates
IX. Filter Calculations
B. Recirculation ratio
X. Activated Sludge Calculations
B. Mean cell residence time
C. Waste and return pumping rates
D. Aerator air flow
E. Volume and volume index
F. Sludge thickening rate
XI. Solids Calculations
A. Centrifuge efficiency
B. Belt press efficiency
C. Volatile solids reduction
D. Volatile acidity/alkalinity ratio
E. Dissolved air flotation
F. Solids mass balance and location
XII. Effluent Treatment Calculations
A. Concentration-Time (CT)
B. Chlorine dosage, demand, and residual
C. Hypochlorite
D. Dechlorination
E. Ultraviolet (UV) and ozone
F. Log removal and disinfection efficiency

Assignments:
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1. Reading assignments, approximately 20-pages per week
2. In-class exercises (8-10)
3. Homework assignments (10-14)
4. Quiz(zes) and exam(s) (2-10)
5. Final exam

 Writing: Assessment tools that demonstrate writing skill and/or require students to select, organize and explain ideas in writing. Writing0 - 0% None This is a degree applicable course but assessment tools based on writing are not included because problem solving assessments are more appropriate for this course. Problem solving: Assessment tools, other than exams, that demonstrate competence in computational or non-computational problem solving skills. Problem Solving40 - 60% In-class exercises and homework assignments Skill Demonstrations: All skill-based and physical demonstrations used for assessment purposes including skill performance exams. Skill Demonstrations0 - 0% None Exams: All forms of formal testing, other than skill performance exams. Exams40 - 60% Quiz(zes) and exams Other: Includes any assessment tools that do not logically fit into the above categories. Other Category0 - 10% Participation

Representative Textbooks and Materials:
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Math Text for Water and Wastewater Technicians. 3rd ed. Wright, Grover. Wright's Training. 1997 (classic)
Applied Math for Wastewater. Price, Joanne Kilpatrick. CRC Press. 1991 (classic)
Applied Math for Wastewater Workbook. Price, Joanne Kilpatrick. CRC Press. 1991 (classic)

Instructor prepared materials

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