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Center for Curriculum and Transfer Articulation
Pretreatment for Water Purification
Course: WRT160

First Term: 2009 Spring
 Lecture   3 Credit(s)   3 Period(s)   3 Load  
Subject Type: Occupational
Load Formula: S


Description: Principles of pretreatment for water purification. Basic concepts of pre-treatment and maintenance procedures. Function and maintenance of specific types of filters. Function of heat exchanger. Advantages and disadvantages of chemical treatment of water. Case studies of field operations



MCCCD Official Course Competencies
1. Explain the operation and function of multi-media filters. (I)
2. Explain the function of activated carbon beds. (II)
3. Describe the reactions and processes of chemical addition treatment of water. (III)
4. Compare and contrast the advantages, disadvantages and selection of chemicals for the pretreatment of water. (III)
5. Describe the operation and function of a heat exchanger. (IV)
6. Explain the function of a forced draft degasifier. (V)
7. Explain the function and maintenance of reverse osmosis pre- filters. (VI)
8. Describe specific trouble-shooting procedures associated with the pretreatment of water. (VII)
MCCCD Official Course Competencies must be coordinated with the content outline so that each major point in the outline serves one or more competencies. MCCCD faculty retains authority in determining the pedagogical approach, methodology, content sequencing, and assessment metrics for student work. Please see individual course syllabi for additional information, including specific course requirements.
 
MCCCD Official Course Outline
I. Multimedia Filters
   A. Design
   B. Purpose
   C. Media
   D. Run and back-flush cycle
   E. Silt density index (SDI) test
   F. Turbidity
II. Carbon Beds
   A. Design
   B. Purpose
   C. Operation
   D. Media
   E. Run and back-flush cycle
III. Chemical Addition
   A. Equipment
   B. Chlorine and bisulfite reactions
   C. Lnagelier saturation index (LSI) values
   D. Acid addition
      1. pH monitor
      2. loop controller
   E. Antiscalants
   F. Dispersants
   G. Advantages and disadvantages of chemical treatment
   H. Selection of chemicals
IV. Heat Exchanger
   A. Types
      1. single tube sheet
      2. double tube sheet
      3. loop controller
   B. Problems
      1. membrane element
      2. high temperature
      3. scale formation
   C. Control systems
V. Forced Draft Degasifier
   A. Design
   B. Hepa filters
   C. Pumps
   D. Blowers
   E. Controls
   F. Benefits
   G. Problems
VI. Reverse Osmosis Pre-filters
   A. Types
   B. function
   C. Sizes
   D. Delta psi
   E. Changing filters
VII. Troubleshooting Procedures
   A. Common problems
   B. Problem identification
   C. Trouble-shooting procedures
 
MCCCD Governing Board Approval Date:  6/24/2008

All information published is subject to change without notice. Every effort has been made to ensure the accuracy of information presented, but based on the dynamic nature of the curricular process, course and program information is subject to change in order to reflect the most current information available.