期刊
CHEMICAL ENGINEERING JOURNAL
卷 325, 期 -, 页码 310-321出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.05.019
关键词
Wastewater treatment; Biocides; Pharmaceuticals; Loading of WWTPs; Reaction rate constants
资金
- Swedish Agency for Marine and Water Management (SwAM)
- AUFF center for advanced water purification
Organic micro pollutants can be removed from water by ozonation. In this article we studied the performance of ozonation under real life conditions and compared results of the same ozonation pilot plant installed at different wastewater treatment plants (WWTPs) thus operating with different waters. The comparability of the removal and reaction rate constants from one waste water treatment plant were low in respect to reaction rate, removal as well as to response to the specific ozone dose. Neither pH-value nor residual nitrite concentrations were the driving force considering these differences. Further tests with different loadings were conducted at the same WWTP under different weather conditions. For the different hydraulic loading of the biological plant, the ozonation was running with rather similar removal rates concerning the same specific (TOC normalized) ozone dose. The compounds that were removed quantitatively under dry weather were still removed well with three times dry weather flow. Using a dataset from one WWTP to optimize operation in another one is thus questionable. (C) 2017 Elsevier B.V. All rights reserved.
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