LANDFILL LEACHATES PRETREATMENT BY OZONATION
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Wydział Budownictwa i Inżynierii Środowiska, Politechnika Białostocka, 15-351 Białystok, ul. Wiejska 45A
Publication date: 2016-06-15
Inż. Ekolog. 2016; 48:143-146
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ABSTRACT
In this paper, the application of ozonation processes for stabilized landfill leachate treatment was investigated. The leachate came from a municipal sanitary landfill located nearby Bielsk Podlaski. The average values of its main parameters were: pH 8.23; COD 870 mgO2/dm3; BOD 90 mgO2/dm3; NH4+ 136.2 mgN/dm3; UV254 absorbance 0.312 and turbidity 14 NTU. The ozone dosages used were in the range of 115.5 to 808.5 mgO3/dm3 of the leachate. The maximum COD, color and UV254 absorbance removal wa.5 mgO3/dm3. After oxidation, the ratio of BOD/COD was increased from 0.1 up to 0.23.
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