Combined biological-chemical (Ozone) treatment of wastewaters containing chloroguaiacols
| Autor: | Hermann Stockinger, Mona Fahmy, Oemer M. Kut, Elmar Heinzle, Marco Stern |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Ozone
Chromatography Renewable Energy Sustainability and the Environment General Chemical Engineering Organic Chemistry chemistry.chemical_element Pulp and paper industry Pollution Chloride Inorganic Chemistry chemistry.chemical_compound Fuel Technology chemistry Wastewater Fluidized bed medicine Chlorine Bioreactor Sewage treatment Formate Waste Management and Disposal Biotechnology medicine.drug |
| Zdroj: | Journal of Chemical Technology AND Biotechnology. 62:241-252 |
| ISSN: | 1097-4660 0268-2575 |
| DOI: | 10.1002/jctb.280620306 |
| Popis: | Biological degradation of chloroguaiacols contained in sulphite pulp chlorine bleaching wastewater was studied in four parallel biological fluidised bed reactor systems-one single aerobic, one single anaerobic and two combined anaerobic-aerobic reactors. At low loading rates, tricbloroguaiacols were removed nearly quantitatively. 4,5-Dichloroguaiacol was only partly removed. At high loading rates the anaerobic-aerobic recycle reactor removed individual guaiacols more than the other reactors. Only 4,5,6-trichloroguaiacol was removed best by the anaerobic-aerobic reactors in series. Even mixed culture biofilms adapted during several years of continuous operation did not satisfactorily remove these compounds. Synthetic wastewater, containing chlorinated guaiacols, treated with ozone produced formate and oxalate and quantitatively inorganic chloride. Combined ozonation-biotreatment in two reactors in series as well as in a recycle system allowed complete removal of all individual chlorinated guaiacols ( |
| Databáze: | OpenAIRE |
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