کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4412418 | 1307637 | 2009 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Quantification of bioregeneration of activated carbon and activated rice husk loaded with phenolic compounds Quantification of bioregeneration of activated carbon and activated rice husk loaded with phenolic compounds](/preview/png/4412418.png)
The bioregeneration efficiencies of powdered activated carbon (PAC) and pyrolyzed rice husk loaded with phenol and p-nitrophenol were quantified by oxygen uptake measurements using the respirometry technique in two approaches: (i) simultaneous adsorption and biodegradation and (ii) sequential adsorption and biodegradation. It was found that the applicability of the simultaneous adsorption and biodegradation approach was constrained by the requirement of adsorption preceding biodegradation in order to determine the initial adsorbent loading accurately. The sequential adsorption and biodegradation approach provides a good estimate of the upper limit of the bioregeneration efficiency for the loaded adsorbent in the simultaneous adsorption and biodegradation processes. The results showed that the mean bioregeneration efficiencies for PAC loaded with phenol and p-nitrophenol, respectively, obtained using the two approaches were in good agreement.
Journal: Chemosphere - Volume 75, Issue 10, June 2009, Pages 1392–1400