Characterisation and biodegradation of settleable organic matter for domestic wastewater

Derin Orhon*, Didem Okutman, Güçlü Insel

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)


Biodegradation of settled COD is studied by evaluating the associated OUR profile obtained in an aerated batch reactor. Hydrolysis was selected, as in current modelling, as the rate-limiting step for O2 consumption. Settled COD was found to incorporate a significant fraction of active biomass that needs to be accounted for in the evaluation. The analysis of the OUR profile yielded a significantly slower hydrolysis mechanism for settled COD, compared to its soluble slowly biodegradable counterpart.

Original languageEnglish
Pages (from-to)299-305
Number of pages7
JournalWater S.A.
Issue number3
Publication statusPublished - Jul 2002


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