Anaerobic hybrid reactor: a promising technology for treatment of distillery spent wash Online publication date: Sat, 09-Oct-2010
by Sunil Kumar Gupta, S.K. Gupta, Gurdeep Singh
International Journal of Environment and Pollution (IJEP), Vol. 43, No. 1/2/3, 2010
Abstract: A laboratory-scale study was conducted to investigate the performance of anaerobic hybrid (combining sludge blanket and filter) and UASB (Upflow Anaerobic Sludge Blanket) reactors for the treatment of distillery spent wash. The start-up and granulation study demonstrated that early start-up and granulation were achieved in case of hybrid reactor (45 days) as compared with UASB reactor (60 days). The investigation of the effect of Hydraulic Retention Time (HRT) on the performance of reactors indicated that at optimum HRT (5 days) and Organic Loading Rate (OLR) 8.7 kg COD/m³/d, the COD removal in hybrid and UASB reactors was found to be 79% and 74.5%, respectively. The rate of sludge washout was reduced by 25% in hybrid reactor as compared with the UASB reactor. The study on the shock loading capacity of the reactors revealed that hybrid reactor is capable of resisting organic shock load up to two times as compared to the UASB reactor capable of resisting the shock loading up to 1.5 times of normal organic load.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environment and Pollution (IJEP):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook