Calculations of Loadings and Concentrations

Course Overview

This module provides an introduction to some of the more common concepts in measurement and calculation in Wastewater Treatment. Units, and the use of units, in measurements are explored together with a discussion of accuracy and precision in relation to measurement errors. We explore the interrelationship between loadings, flows and concentrations with a focus on understanding the terminology, conversions and getting the units right. We’ll also cover basic water chemistry, using this to describe aspects of both drinking water treatment and wastewater treatment.

There are lots of examples and opportunities for you to practice your skill in mathematical manipulations as we attempt to find solutions to typical calculation examples. Grappling with maths isn’t everyone’s idea of fun but, in this unit, the aim is to make ‘having a go’ as interesting, informative and painless as possible. If you want to find out more about the numbers underpinning wastewater treatment processes then this is for you.

Key Learning Outcomes

  • The water and wastewater industry and the drivers for the sustainable use, management and development of the water resource;
  • The current legislative provisions governing the water and wastewater industry across different parts of the U.K.; and
  • The principal treatment processes for drinking water and wastewater used in the U.K.

The focus of this module is on a general description and overview that demonstrates the way in which the different aspects of a water business link together to deliver their services and products. The technical content of this module is limited to only that which is required to appreciate the nature of the various water treatment or pollution removal processes.

Course Duration 

This module has a learning time equivalent to 2 – 3 hours per week for 5 weeks. Delegates 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 delegates will have three months access to the Online Course portal. Please note this is a guideline and learning times will vary person to person.

View assignment submission dates


£250 + VAT = £300.00. Business Partner rates available.

Please note that bookings should be made through 'My CIWEM' using the booking link above. Your place is confirmed once you have clicked ‘proceed & submit’ in the cart and received a confirmation email. Non-members can book via CIWEM by creating an account on the booking page.

Contact Us 

Please contact or call +44 (0)20 7831 3110 with any booking enquiries.


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