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Abstract
Advanced automotive fl eet repair facility wastewater treatment was investigated with Zero-Valent Iron/Hydrogen Peroxide (Air/ZVI/H2 O2 ) process for different process parameters: ZVI and H2 O2 doses, time, pH. The highest Chemical Oxygen Demand (COD) removal effi ciency, 76%, was achieved for ZVI/H2 O2 doses 4000/1900 mg/L, 120 min process time, pH 3.0. COD decreased from 933 to 227 mg/L. In optimal process conditions odor and color were also completely removed. COD removal effi ciency was increasing with ZVI dose. Change pH value below and over 3.0 causes a rapid decrease in the treatment effectiveness. The Air/ZVI/H2 O2 process kinetics can be described as d[COD]/dt = -a [COD]tm, where ‘t’ corresponds with time and ‘a’ and ‘m’ are constants that depend on the initial reagent concentrations. H2 O2 infl uence on process effect was assessed. COD removal could be up to 40% (560 mg/L) for Air/ZVI process. The FeCl3 coagulation effect was also evaluated. The best coagulation results were obtained for 700 mg/L Fe3+ dose, that was slightly higher than dissolved Fe used in ZVI/H2 O2 process. COD was decreased to 509 mg/L.
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Authors (2)
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Jan Paweł Bogacki dr inż.
- Warsaw University of Technology Faculty of Building Services, Hydro and Environmental Engineering
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Hussein Al-Hazmi mgr inż.
- Warsaw University of Technology Faculty of Building Services, Hydro and Environmental Engineering
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/aep-2017-0024
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Archiwum Ochrony Środowiska
no. 43,
pages 24 - 31,
ISSN: 2083-4772 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Bogacki J. P., Al-Hazmi H.: Automotive fleet repair facility wastewater treatment using air/ZVI and air/ZVI/H2 O2 processes// Archives of Environmental Protection. -Vol. 43, iss. 3 (2017), s.24-31
- DOI:
- Digital Object Identifier (open in new tab) 10.1515/aep-2017-0024
- Verified by:
- Gdańsk University of Technology
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