NISCAIR Online Periodicals Repository

Research Journals >
Indian Journal of Chemical Technology (IJCT) >
IJCT Vol.16 [2009] >
IJCT Vol.16(1) [January 2009] >

Title: Anaerobic biogas generation from sugar industry wastewaters in three-phase fluidized-bed bioreactor
Authors: Hossain, Sk Masud
Anantharaman, N
Das, Manas
Keywords: Activated bacteria
Fluidized- bed
Issue Date: Jan-2009
Publisher: CSIR
Abstract: The studies are undertaken to develop an effective anaerobic continuous digestion process for biogas generation from sugar industry wastewaters using actively digested sludge from a sewage plant, in three-phase fluidized bed bioreactor. Attempts are made to optimize hydraulic retention time (HRT), initial feed pH, feed temperature and flow rate of feed (organic loading rate) for maximum production of methane gas and maximum removal of chemical oxygen demand (COD) and biological oxygen demand (BOD) of sugar industry wastewaters. The optimum conditions for the system are: digestion time, 8 h; initial pH of feed, 7.5; feed temperature, 40ºC; feed flow rate, 14 L/ min with maximum organic loading rate (OLR), 39.513 kg COD m⁻³ h⁻¹. The organic loading rates (OLR) are calculated on the basis of COD inlet in the bioreactor at different flow rates. The maximum expansion of the bed is observed as 23.67 m at optimum feed flow rate of 14 L/ min. The maximum methane gas concentration is 63.56% (v/v) of the total biogas generation at optimum process parameters. The maximum biogas yield rate is 0.835 m³ /kg COD m⁻³ h⁻¹ with maximum methane gas yield rate of 0.530 m³ /kg COD m⁻³ h⁻¹ (63.56% v/v) at optimum process parameters. The values for maximum reduction of COD and BOD are 76.82% (w/w) and 81.65% (w/w) with maximum OLR of 39.513 kg COD m⁻³ h⁻¹ at optimum conditions.
Page(s): 58-64
ISSN: 0971–457X
Source:IJCT Vol.16(1) [January 2009]

Files in This Item:

File Description SizeFormat
IJCT 16(1) 58-64.pdf191.2 kBAdobe PDFView/Open
 Current Page Visits: 97 
Recommend this item


Online Submission of Articles |  NISCAIR Website |  National Knowledge Resources Consortium |  Contact us |  Feedback

Disclaimer: NISCAIR assumes no responsibility for the statements and opinions advanced by contributors. The editorial staff in its work of examining papers received for publication is helped, in an honorary capacity, by many distinguished engineers and scientists.

CC License Except where otherwise noted, the Articles on this site are licensed under Creative Commons License: CC Attribution-Noncommercial-No Derivative Works 2.5 India

Copyright © 2015 The Council of Scientific and Industrial Research, New Delhi. All rights reserved.

Powered by DSpace Copyright © 2002-2007 MIT and Hewlett-Packard | Compliant to OAI-PMH V 2.0

Home Page Total Visits: 163826 since 01-Sep-2015  Last updated on 21-Jun-2016Webmaster: