Online-measurement systems for agricultural and industrial AD plants – A review and practice test
- Online-measurement systems for AD plants in general are crucial to allow for detailed and comprehensive process monitoring and provide a basis for the development and practical application of process optimisation and control strategies. Nevertheless, the online measurement of key process variables such as Volatile Fatty Acids (VFA) and Total Alkalinity (TA) has proven to be difficult due to extreme process conditions. High Total Solids (TS) concentrations and extraneous material often damage the sensors or have a strong negative impact on measurement quality and long-term behaviour. Consequently, there is a need for new robust and accurate online-measurement systems. The purpose of this paper is to give an overview of existing online-measurement systems, to present the current state of research and to show the results of practice tests at an agricultural and industrial AD plant. It becomes obvious that a broad variety of measurement solutions have been developed over the past few years, but that the main problem is the upscaling from lab-scale to practical application at full-scale AD plants. Results from the practice tests show that an online-measurement of pH, ORP, TS is possible.
Author: | Christian Wolf, Daniel Gaida, Michael Bongards |
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URN: | urn:nbn:de:hbz:832-epub4-6856 |
Parent Title (German): | Kompendium der Forschungsgemeinschaft :metabolon 2012-2014 |
Descirption of the primary publication: | Kompendium der Forschungsgemeinschaft :metabolon 2012-2014, 2014, S. 52-64 |
Place of publication: | Gummersbach |
Document Type: | Part of a Book |
Language: | English |
Date of Publication (online): | 2015/05/29 |
Tag: | Biogas; Industrial biogas plant; Online-measurement; Total alkalinity; Volatile fatty acids |
Institutes: | Informatik und Ingenieurwissenschaften (F10) / Fakultät 10 / Institut für Automation & Industrial IT |
Dewey Decimal Classification: | 600 Technik, Medizin, angewandte Wissenschaften |
JEL-Classification: | Q Agricultural and Natural Resource Economics; Environmental and Ecological Economics |
Open Access: | Open Access |
Licence (German): | ![]() |