naa a22 4500 510750818 CHVBK 20180411083103.0 cr unu---uuuuu 180411e20130301xx s 000 0 eng 10.1007/s11270-013-1445-0 doi (NATIONALLICENCE)springer-10.1007/s11270-013-1445-0 Application of Statistical Tool for the Optimization of Biofiltration of Toluene Using Corn Stacks as Packing Material [Elektronische Daten] [V. Saravanan, B. Ramya, M. Rajasimman, N. Rajamohan] In this work, statistical design was applied for the optimization of process parameters for the biofiltration of toluene using mixed microorganisms obtained from pharmaceuticals wastewater sludge in a packed bed biofilter. The effects of process parameters such as gas flow rate, initial toluene concentration, height of the packing material, and temperature on removal efficiency (RE) of toluene was studied and optimized using response surface methodology. Using Box-Behnken Design, 30 experiments were carried out for the four test variables. From the results, the optimum condition for maximum RE was found to be: gas flow rate—0.01m3 h−1, initial toluene concentration—0.25g m−3, packing height—0.75m, and temperature—31°C. At these optimized conditions, the removal efficiency of toluene was found to be 95%. A high R 2 value of greater than 0.9 indicates the fitness of the model to predict the experimental data. Biokinetic studies led to a good fit between experimental data and mathematical equations, yielding a calculated maximum toluene degradation rate of 140.42g m−3 h−1 with a half-velocity constant, K S, of 0.076g m−3. Springer Science+Business Media Dordrecht, 2013 Toluene nationallicence Biofiltration nationallicence Response surface methodology nationallicence Corn stack nationallicence Gas flow rate nationallicence Saravanan V. Department of Chemical Engineering, Annamalai University, 608002, Annamalai Nagar, India aut Ramya B. Department of Chemical Engineering, Annamalai University, 608002, Annamalai Nagar, India aut Rajasimman M. Department of Chemical Engineering, Annamalai University, 608002, Annamalai Nagar, India aut Rajamohan N. Sohar University, Sohar, Sultanate of Oman aut Water, Air, & Soil Pollution Springer Netherlands 224/3(2013-03-01), 1-9 0049-6979 224:3<1 2013 224 11270 https://doi.org/10.1007/s11270-013-1445-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11270-013-1445-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Saravanan V. Department of Chemical Engineering, Annamalai University, 608002, Annamalai Nagar, India aut NATIONALLICENCE 700 1- Ramya B. Department of Chemical Engineering, Annamalai University, 608002, Annamalai Nagar, India aut NATIONALLICENCE 700 1- Rajasimman M. Department of Chemical Engineering, Annamalai University, 608002, Annamalai Nagar, India aut NATIONALLICENCE 700 1- Rajamohan N. Sohar University, Sohar, Sultanate of Oman aut NATIONALLICENCE 773 0- Water, Air, & Soil Pollution Springer Netherlands 224/3(2013-03-01), 1-9 0049-6979 224:3<1 2013 224 11270 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer