US EPA

2919036 

Journal Article 

Endocrine Disrupter Removal by Ozone/Activated Carbon Coupling in Continuous Flow at Pilot Scale 

Chedeville, O; Barrot, Y; Versaveau, F; Pineau, A; Cagnon, B 

2015 

Yes 

Journal of Environmental Engineering
ISSN: 0733-9372
EISSN: 1943-7870 

141 

5 

10.1061/(ASCE)EE.1943-7870.0000917 

WOS:000353994400008 

In view of their toxicity, the presence of endocrine disrupters such as phthalates in surface waters requires the setup of new wastewater treatment processes. Previous studies demonstrated the efficiency of ozone (O3)/activated carbon (AC) coupling in removing micropollutants such as phthalates in batch conditions. The aim of the present work was to study the removal of diethylphthalate (DEP) from water by O3/AC coupling in continuous flow on a pilot scale. Comparison of the results obtained with O3/AC coupling (both DEP removal and ozone mass transfer) to those of conventional methods shows its great potential and the influence of experimental conditions such as pH and ozone gas concentration. The process reached a steady state with a high pollutant removal and an efficient ozone mass transfer. Moreover, it extends the AC lifetime by ensuring the in situ renewal of the adsorbent. By estimating the microporous volume occupied by the adsorbent material at different times during the treatment, it is also shown that no significant modification in the AC textural and chemical properties occurs during its regeneration by oxidative species. 

Ozone; Activated carbon; Phthalates; Continuous process