PERFORMANCE AND STABILITY OF ANAEROBIC HYBRID REACTOR SUBJECTED TO HYDRAULIC LOAD FLUCTUATIONS

May 16th, 2012

PERFORMANCE AND STABILITY OF ANAEROBIC HYBRID REACTOR SUBJECTED TO HYDRAULIC LOAD FLUCTUATIONS

Yusron Sugiarto1, 2, Pratin Kullavanijaya3, *, and Pawinee Chaiprasert1, *
1 King Mongkut’s University of Technology Thonburi, School of Bioresources and Technology, Bangkhuntien, Bangkok 10150, Thailand
2 Brawijaya University, Agro-industrial Biotechnology, Malang 61140, Indonesia
3 King Mongkut’s University of Technology Thonburi, PDTI, Bangkok 10150, Thailand
*Corresponding author: pratin@pdti.kmutt.ac.th, pawinee.cha@kmutt.ac.th

ABSTRACT
In this study, a 5.5-L anaerobic hybrid reactor (AHR) was periodically subjected to hydraulic load fluctuations via the reduction of retention time (HRT) from 3.0 to 2.0 and 1.0 d for the periods of 8.0 to 72.0 h. The obtained results demonstrated the significant capability and resilience of AHR in withstanding those transient fluctuations. A temporal and minimal effect was found when subjected to the short period of 8.0-24.0 h while, the longer and lower HRT of 1.0 d seemed to promote more acid accumulation, sudden drop of pH and methane composition. However, for all conditions, AHR could rapidly recover and resume to its previous operational stability within 1.0-2.4 d.
Keywords: AHR, biogas energy, biomethane, hybrid reactor, hydraulic load fluctuation

Leave a Reply

CAPTCHA Image
*