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- Title
Removal of dibutyl phthalate (DBP) from landfill leachate using an ultrasonic field.
- Authors
Ziembowicz, Sabina; Kida, Małgorzata; Koszelnik, Piotr
- Abstract
The work detailed here investigated the efficiency of ultrasonic technologies in the treatment of landfill dibutyl phthalate (DBP) leachate, where this substance is a known as endocrine disrupting compound (EDC). Investigated effects took in such operating parameters as ultrasonic amplitude, solution pH, time, and type of leachate. Results confirmed effective DBP decomposition under the influence of ultrasonic waves, which have oxidative properties over a wide range of pH values, in relation to physicochemical substance properties. In this process, natural pH proved to offer optimal conditions. Reaction time has an impact on the results, but the oxidation is slow. Ultrasonic degradation of DBP of 33.4%, 37.6%, and 54.6% is achieved within 15, 30, and 60 min. respectively. The results also demonstrated that chemical oxygen demand, total organic carbon, total nitrogen, ammonium nitrogen (N-NH4+), and total phosphorus removal is not effective by ultrasonic methods. Additionally, ultrasonic degradation was found to depend on the amplitude of the waves used. A change of amplitude from 20% to 50% resulted in a yield increase of about 10%. More effective oxidation was also achieved during treatment of stabilised leachate. An ultrasonic field is, therefore, a suitable means of removing organic micropollutants from leachate, to a degree that conventional purification methods cannot achieve.
- Subjects
ENDOCRINE disruptors; LEACHATE; WATER purification
- Publication
Desalination & Water Treatment, 2018, Vol 117, p9
- ISSN
1944-3994
- Publication type
Article
- DOI
10.5004/dwt.2018.21961