Effect of ultrasonic treatment on anaerobic co-fermentation of oil refinery wastewater (ORWW) and chicken manure (CM) under different temperatures

4^th International Conference on Bioprocess and Bio Therapeutics

October 20-21, 2016 Houston, USA

Esmaeil Mehryara, Ding Weimin, Abbas Hemmat and Zahir Ahmad Ali Talha

Isfahan University of Technology, Iran
Nanjing Agricultural University, China

Posters & Accepted Abstracts: J Bioproces Biotechniq

Abstract :

Now a days, the volume of industrial wastes and waster waters are being increased sharply, which made heavy pollution in the natural resources. The oil refining industry is one of the biggest manufacturing areas, which are generating the major source of aquatic environmental pollution. In numerous researches, the animal manure, as a superb nutrient pool to support microbial growth, had been used as a co-substrate to improve anaerobic co-fermentation (ACF) of industrial wastes. In the present research, the Taguchiâ��s L9 orthogonal array was applied to study the effect of ultrasonic treatment on the ACF of ORWW and CM. Three sonicating time duration of 0 (control), 15 and 30 min were applied to treat ORWW, then treated wastewater in 3 different mixing ratios of 33, 44 and 55% were mixed with untreated fresh CM and finally fed in the batch digesters. In order to investigate the effect of temperature on the ACF, all experiments were run in 3 different temperatures of 36, 46 and 56�°C. The results showed that by increasing the CM proportion in ACF mixture, the biogas production (BGP) was increased, while the temperature increasing had a negative effect on the BGP. Also, the results of ultrasonic treating oriented that by increasing sonicating time, the BGP increased. The data presented same trends for the bio-methane content of the BGP. Unlikely, the removal soluble chemical oxygen demand efficiency was not significantly affected by time duration of sonication and ACF mixing ratios.

Biography :

Email: esmaeil.mehryar@gmail.com