Academic Journals Database
Disseminating quality controlled scientific knowledge

The Start-up of Hybrid, Anaerobic up-flow Sludge Blanket (HUASB) under a Range of Mesophiclic and Thermophilic Temperatures

ADD TO MY LIST
 
Author(s): S. A. Habeeb | Ab. Aziz Abdul Latiff | Zawawi Daud | Zulkifli Ahmad

Journal: EnvironmentAsia
ISSN 1906-1714

Volume: 4;
Issue: 2;
Start page: 63;
Date: 2011;
VIEW PDF   PDF DOWNLOAD PDF   Download PDF Original page

Keywords: Anaerobic treatment | HUASB reactor | Temperature | Sludge granules | Maximum specific microbial growth rate

ABSTRACT
We have examined the effect of gradual increase of the temperature on the performance of anaerobic process of palm oil mill effluent (POME), and sludge granules development. Two hybrid up-flow anaerobic sludge blanket (HUASB) reactors R1 and R2 were employed to be run at 27±2 and 37±1°C, respectively. R1 was kept at room temperature for the whole experiment, where the temperature of R2 was increased up to 49ºC (3ºC after every steady-state occurrence). Maximum COD removal of 91% was obtained in R2 at optimum temperature of 46°C, while 84% was recorded in R1. Additional parameters were applied to evaluate the performance of the process, i.e. total suspended solids (TSS), Turbidity, and Color. The imaging of sludge aggregate has revealed the effect of temperature on granulation development during the experiment. Throughout the operation period, it can be seen that the microbial growth rate was significantly affected by temperature. Hence, the use of HUASB reactor could be productively implemented for POME treatment as an efficient system under the mesophilic and thermophilic temperatures.
Why do you need a reservation system?      Affiliate Program