The need for disinfection of drinking water is introduced along with the regulatory requirements followed by a brief examination of water borne diseases. Water quality parameters and their significance in disinfection and re-infection are discussed. A major part of the course is devoted to the method of chlorine disinfection including system design, performance, monitoring, control, de-chlorination and chloramination. The advantages and limitations of different methods of disinfection including ozone and UV are considered.
Note: The content of this course relates to aspects of both drinking water and wastewater treatment and there is inevitably some overlap with material contained within both the Municipal Wastewater Treatment and the Potable Water Treatment courses.
By the end of this course you will have obtained knowledge of:
Water & wastewater disinfection – the Ct concept for chemical disinfection processes, Water Safety Plans, and chemical disinfection byproducts including trihalomethanes (THMs) Physical disinfection processes including UV and membrane technology (microfiltration, ultrafiltration, and reverse osmosis) Disinfection equipment including commercial systems Operation, monitoring, verification and maintenance of disinfection systems. 
Delivered via the CIWEM Learning Platform, the course is self paced e-learning with tutor support available on the course discussion forum throughout. Study at your own pace and access support when you require it. There are two live Q&A sessions incorporated into the course.
This module has a learning time equivalent to 2 – 3 hours per week for 5 weeks. You will have ten weeks to complete the course including approximately five weeks to read through course content and five more weeks to complete their final assignment. In total you will have four months access to the Online Course portal. Please note this is a guideline and learning times will vary person to person.
If you have any questions please email our team at learning@ciwem.org or call 020 7831 3110.
“…A very useful grounding of the various options available for disinfection. I particularly value the extensive hyperlinks to additional material which when followed allow a much more in-depth information to be gained where it is required.”
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