Title
|
|
|
|
Formation of aerobic granular sludge during the treatment of petrochemical wastewater
| |
Author
|
|
|
|
| |
Abstract
|
|
|
|
In this study, petrochemical wastewater from the port of Antwerp was used for the development of aerobic granular sludge. Two different reactor setups were used, (1) a completely aerated sequencing batch reactor (SBRae) with a feast/famine regime and (2) a sequencing batch reactor operated with an anaerobic feast/aerobic famine strategy (SBRan). The seed sludge showed poor settling characteristics with a sludge volume index (SVI) of 285 mL.g MLSS−1 and a median particle size by volume of 86.0 µm ± 1.9 µm. In both reactors, granulation was reached after 30 days with a SVI of 71 mL.g MLSS−1 and median granule size of 264.7 µm in SBRan and a SVI of 56 mL.g MLSS−1 and median granule size of 307.4 µm in SBRae. The chemical oxygen demand (COD) and dissolved organic carbon (DOC) removal was similar in both reactors and above 95%. The anaerobic DOC uptake increased from 0.13% to 43.2% in 60 days in SBRan. |
| |
Language
|
|
|
|
English
| |
Source (journal)
|
|
|
|
Bioresource technology. - Barking
| |
Publication
|
|
|
|
Barking
:
2017
| |
ISSN
|
|
|
|
0960-8524
| |
DOI
|
|
|
|
10.1016/J.BIORTECH.2017.04.068
| |
Volume/pages
|
|
|
|
238
(2017)
, p. 559-567
| |
ISI
|
|
|
|
000402485500066
| |
Pubmed ID
|
|
|
|
28477518
| |
Full text (Publisher's DOI)
|
|
|
|
| |
Full text (open access)
|
|
|
|
| |
|