• VIVEKANANDHAN V
• S.Mohan

In the present study, an upflow anaerobic sludge blanket (UASB) and Expanded granular sludge blanket (EGSB) reactors were operated with Real time tannery wastewater under five different hydraulic retention times (HRT) viz., 5.21, 2.6, 1.74, 1.3 and 1.04 days. The performance of both systems were compared in terms of COD removal efficiency, chromium removal, biogas production. During the operation of the reactor with different OLRs ranging 1.658 – 8.14 kg COD/m3 .d and 1.612- 7.9 kg COD/m3 .d and various HRTs, the maximum COD removal efficiency of 81.1 % and 83.52 % were obtained in the UASB and EGSB reactor respectively. The maximum biogas production obtained in EGSB reactor. The maximum Chromium concentration reduction was found in EGSB than UASB reactor. SEM studies revealed that there was no significant morphological changes in the sludge granules. While treating tannery wastewater , EGSB reactor showed a better performance than UASB reactor.

Keywords: UASB, EGSB, Real Tannery Effluent, COD Reduction, Chromium, Biogas Production, SEM.

"COMPARISON OF UASB AND EGSB REACTOR PERFORMANCE ON THE ANAEROBIC DIGESTION OF REAL TIME TANNERY WASTEWATER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 5, page no.181-186, May-2019, Available :http://www.jetir.org/papers/JETIR1905324.pdf

"COMPARISON OF UASB AND EGSB REACTOR PERFORMANCE ON THE ANAEROBIC DIGESTION OF REAL TIME TANNERY WASTEWATER", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 5, page no. pp181-186, May-2019, Available at : http://www.jetir.org/papers/JETIR1905324.pdf