Effect of fermented wastewaters from butter production on phosphates removal in a sequencing batch reactor
| Autor: | Kamila Czaplicka, Arthur Thornton, Joanna Rodziewicz, Wojciech Janczukowicz |
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| Rok vydání: | 2012 |
| Předmět: |
Environmental Engineering
Bioengineering Sequencing batch reactor Wastewater Waste Disposal Fluid Phosphates Water Purification Acetic acid chemistry.chemical_compound Denitrifying bacteria Bioreactors Compounds of carbon Waste Management and Disposal Effluent Biological Oxygen Demand Analysis chemistry.chemical_classification Nitrates Waste management Renewable Energy Sustainability and the Environment Chemistry food and beverages General Medicine Fatty Acids Volatile Phosphate Pulp and paper industry Dairying Biodegradation Environmental Batch Cell Culture Techniques Fermentation Butter Water Pollutants Chemical |
| Zdroj: | Bioresource Technology. 120:34-39 |
| ISSN: | 0960-8524 |
| Popis: | This study determined the potential for fermented wastewaters from butter production plant to act as a carbon source to facilitate phosphates removal. Synthetic dairy wastewaters were treated using SBR, with doses of fermented wastewaters. An increase in the fermented wastewater doses were found to improve the effluent quality in respect of phosphates and nitrates. The lowest concentrations of phosphate and nitrates, respectively 0.10 ± 0.04 mg PO 4 –P L −1 and 1.03 ± 0.22 mg NO 3 –N L −1 , were noted in the effluent from the reactor fed with fermented wastewaters in a dose of 0.25 L d −1 per 0.45 L d −1 of wastewaters fed to the reactor. In the case of the two highest doses, an increase in effluent COD was stated. The higher effectiveness resulted from the fact that the introduction of fermented wastewaters caused an increase in the easily-available carbon compounds content and the predominance of acetic acid amongst VFAs available to dephosphatating and denitrifying bacteria. |
| Databáze: | OpenAIRE |
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