Study on biodegraded characteristics of endocrine disruptor di-n-butyl phthalate
Wang, L.; Luo, Q.
Wei Sheng Yan Jiu 32(3): 187-189
2003
ISSN/ISBN: 1000-8020 PMID: 12914274 Document Number: 554307
The biodegraded Characteristics of di-n-butyl Phthalate (DBP), endocrine disruptor were studied. The activated sludge was acclimated using DBP as the only carbon in the culture medium. DBP concentration was increased progressively from 0.05 g/L to 0.5 g/L. The degradation tests were carried out on the constant temperature table using the acclimated sludge at different PH, temperature, DBP concentration and hydraulic residence time. The results showed that DBP could be rapidly degraded-nearly 90% in 48 hours. The appropriate condition for DBP degradation was pH 6.0-8.0, temperature 25 degrees C-35 degrees C, DBP concentration no more than 300 mg/L, and hydraulic residence time 12 h-24 h. The form of biodegradation of DBP can be described as the first-order reaction model.