Abstract：
:Although there is not a complete agreement on the causes of foaming in anaerobic digestion, experts and operators do have valuable empirical knowledge of key factors. Based on this knowledge, a model for calculating the risk of foaming in anaerobic digestion systems due to microbiological causes has been developed. Organic loading rate, variation in organic loading rate, and the presence of filamentous microorganisms in the activated sludge system, used as a feed source for the digester, have been selected as the inputs of a knowledge-based model designed to provide as output the risk of foaming in an anaerobic digester. The performance of the model is demonstrated by means of a case study using the IWA Benchmark Simulation Model No. 2 as a framework, where risk of foaming is used as a new evaluation criterion. The simulated results of an open-loop configuration and two closed-loop control strategies illustrate the usefulness of this knowledge-based approach as a means of estimating the risk of foaming in anaerobic digestion.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Dalmau J,Comas J,Rodríguez-Roda I,Pagilla K,Steyer JPdoi
10.1016/j.biortech.2010.01.056subject
Has Abstractpub_date
2010-06-01 00:00:00pages
4306-14issue
12eissn
0960-8524issn
1873-2976pii
S0960-8524(10)00142-2journal_volume
101pub_type
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