# SRJC Course Outlines

 1/24/2020 6:45:37 PM WWTR 112 Course Outline as of Fall 2017 Changed Course CATALOG INFORMATION Discipline and Nbr:  WWTR 112 Title:  MATH FOR WATER TECH Full Title:  Math for Water and Wastewater Technology Last Reviewed:2/13/2017

 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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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
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:
Upon completion of the course, students will 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
In order to achieve these learning outcomes, during the course the students will:
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,
rates, efficiencies, and power usage
3. Complete the mathematical portions of the state certification exams for: Water Distribution
System Operator (Grades 1 or 2), Water Treatment Operator (Grades 1 or 2), and
Wastewater Operator (Grade 1 and 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. In-class exercises (8-10)
2. Problem solving assignments (10-14)
3. Quizzes and/or Midterms (2-10)
4. Final exam