We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
From a lab test to industrial application: scale-up of Fenton process for real olive mill wastewater treatment.
- Authors
Amaral‐Silva, Nuno; Martins, Rui C; Nunes, Paulo; Castro‐Silva, Sérgio; Quinta‐Ferreira, Rosa M
- Abstract
BACKGROUND This study evaluates the integration of ferric coagulation, Fenton oxidation (both at lab and industrial scale) and activated sludge (at lab scale) for the treatment of olive mill wastewater. RESULTS Initially, an iron based coagulation at the raw pH of olive mill effluent was performed, leading to 38% COD abatement at bench scale. This procedure also provided some dissolved iron that can be used as catalyst in the following Fenton's peroxidation step. At lab scale Fenton's process accomplished COD removal of 75%. Moreover, some biodegradability enhancement was achieved with this procedure with initial BOD5/ CODaverage = 0.03 increasing to BOD5/ CODaverage = 0.37 after the process. This integrated treatment was then applied at industrial scale and, after further optimization, coagulation and Fenton's processes were able to remove 43% and 62% of COD, respectively. CONCLUSION Based on the interesting results gathered at lab-scale, it was possible to optimize an industrial WWTP (waste water treatment plant). Ferric coagulation followed by Fenton's peroxidation was implemented with efficiency up to 90% and final COD of 200 mgO2 L−1. The resulting wastewater can be discharged into municipal sewage or can be recycled for reutilization after an in situ biological treatment. © 2016 Society of Chemical Industry
- Subjects
INDUSTRIAL applications; WASTEWATER treatment; COAGULATION; IRON compounds; FENTON'S reagent
- Publication
Journal of Chemical Technology & Biotechnology, 2017, Vol 92, Issue 6, p1336
- ISSN
0268-2575
- Publication type
Article
- DOI
10.1002/jctb.5128