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Off-gas emission tests

This course focuses on the monitoring and quantification of off-gas and greenhouse gas emissions from wastewater treatment plants using standardized experimental approaches. It contains two videos and a textbook chapter that can be accessed free of charge at this webpage.

Course Info

  • About

    This course focuses on the monitoring and quantification of off-gas and greenhouse gas emissions from WWTPs using standardized experimental approaches. The course is designed for both academics and practitioners, including graduate and postgraduate students, researchers, laboratory staff, plant operators, consultants, and other sector professionals with a background in sanitary, civil, environmental or (bio)chemical engineering, environmental biotechnology or biochemistry. As the course is at graduate level, participants with knowledge of and experience with the basic concepts of biological wastewater treatment will particularly benefit from it.

  • Syllabus

    The following topics are part of the course:

    • Selecting the sampling strategy;
    • Plant assessment and data collection;
    • Emission measurements;
    • N2O measurement in open tanks;
    • Measurement of off-gas flow in open tanks;
    • Aqueous N2O and CH4 concentration determination;
    • Data analysis and processing

    For a detailed table of contents please click here.

  • Objectives │ Activities │ Assessment

    Learning objectives, activities and assessment depend on the delivery mode of the course. In general, learning objectives are more complex for instructor-led courses. This is particularly true for on campus courses and tailored training because they allow for guided, hands on, laboratory exercises and assignments. To view the learning objectives, activities and assessment of this course please click here.

  • Contact

    Carlos Lopez Vazquez, PhD
    +31 15 21 51 781


Gas stripping method

A practical method is shown to strip out gases dissolved in a sludge sample and determine their concentration.

1 of 2

Salting-out method

This video shows how to estimate the generation of N2O gas in a full-scale wastewater treatment plant.

2 of 2

Download the chapter

Off-gas emission test (0.7 MB)

Available in English, Spanish and Croatian. Coming soon in Russian, Hindi, Marathi and Tamil.

Off-gas emission tests

This chapter is an integral part of the textbook Experimental Methods in Wastewater Treatment. It is a complementary part of the course curriculum and includes background information on the processes of interest, details on experimental set-ups, preparation and execution, as well as a results discussion and interpretation, accompanied with examples and additional information. The book is also used for teaching the MSc specialization in Sanitary Engineering at IHE Delft and several other universities worldwide. It is the product of collaborative efforts by research groups and practitioners around the world. You can download your free copy of the book in one of currently available languages.
  • Van Loosdrecht M.C.M., Nielsen P.H, Lopez-Vazquez C.M., Brdjanovic D. Ed. (2016) Experimental Methods in Wastewater Treatment. IWA Publising, pg. 350, ISBN 9781780404745 (Hardback) 9781780404752 (eBook)