Maricopa Community Colleges  WRT218   20032-20035 
Official Course Description: MCCCD Approval: 12/10/02
WRT218 20032-20035 LAB 1 Credit(s) 3 Period(s)
TROUBLESHOOTING REVERSE OSMOSIS SYSTEMS
Troubleshooting reverse osmosis (RO) systems. Hands-on experiences with actual RO systems. Maintenance, problem solving and cleaning procedures. Prerequisites: WRT160, CHM130 and CHM130LL or permission of department. Corequisites: WRT210.
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MCCCD Official Course Competencies:
 
WRT218   20032-20035 TROUBLESHOOTING REVERSE OSMOSIS SYSTEMS
1. Demonstrate the correct monitoring procedures of reverse osmosis systems. (I)
2. Explain problems that could occur in an reverse osmosis system. (II, IV)
3. Perform instrument calibrations on specific reverse osmosis equipment. (III)
4. Identify and locate specific problems in the reverse osmosis system. (II, IV)
5. Describe methods to prevent problems in the reverse osmosis system. (II, V)
6. Compare and contrast methods for troubleshooting a reverse osmosis system. (VI)
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MCCCD Official Course Outline:
 
WRT218   20032-20035 TROUBLESHOOTING REVERSE OSMOSIS SYSTEMS
    I. Monitoring Procedures
        A. pH
        B. Chlorine
        C. Sulfite
      II. Common Problems
          A. Source of problems
          B. Case studies
          C. Industry concerns
            1. semi-conductor industry
            2. pharmaceutical industry
            3. beverage industry
            4. cosmetics industry
        III. Calibrations
            A. Conductivity
            B. Flow meters
            C. Pressure
            D. pH
            E. Temperature
          IV. Diagnosing Problems
              A. Salt rejection
                1. front end
                2. tail end
                3. isolated
                4. uniform
              B. Differential pressure changes
                1. front end
                2. tail end
                3. random
                4. uniform
            V. Problem Prevention
                A. Salt rejection
                B. Differential pressure changes
                  1. front end
                  2. tail end
                  3. random
                  4. uniform
              VI. Methods of Troubleshooting
                  A. Visual inspection
                  B. Dissolution in acid
                  C. Dye test
                  D. Optical microscopy
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