• P. Sivarajan
• N. Nagarajan

The effect of hydraulic retention time in 2- chlorophenol (2-CP) degradation in a UASB reactor with starch water as co-substrate was explored. The degradation extent of 2-CP at various hydraulic retention time (HRT) viz. 36, 30, 24, 18 and 12 h was monitoredat optimized concentration of 600 mg/L.The 2-CP removal efficiency in the reactor wasranging from 80.8 to 97.7% for various HRT and maximum removal efficiency of 97.7% was achieved atHRTof 18 h.COD removal efficiency was in the range of 77.8 to 93.6% in the reactor and maximum COD removal efficiency of 93.6% was achieved at 18 h HRT.Maximum biogas production of 28 L/d was achieved at 12 h of HRT.

2-Chlorophenol degradation, HRT, Co-substrate, UASBR

"Impact of hydraulic retention time in 2-chlorophenol degradation with Starch as co-substrate in an UASB reactor ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.379-384, April-2019, Available :http://www.jetir.org/papers/JETIR1904N52.pdf

"Impact of hydraulic retention time in 2-chlorophenol degradation with Starch as co-substrate in an UASB reactor ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp379-384, April-2019, Available at : http://www.jetir.org/papers/JETIR1904N52.pdf