Performance and Kinetic Studies
of Dairy Effluent Using Mixed Culture
in a Suspended Growth Batch Reactor
Dipankar Raha, Pradyut Kundu, and Somnath Mukherjee
Abstract A batch kinetic study was performed for examining potential application
of microbial culture, for organic carbon oxidation, nitrification and denitrification
from simulated real-life dairy wastewater. After necessary characterization of waste
samples, it was found that SCOD, NH 4
+ –N and NO 3
− –N were within the range
of 1116.7–1361.2, 41.4–58.13 and 19.75–23.96 mg/L, respectively. Time concentration study showed that after 24 h of contact time, 93.80–97.30% reduction of
SCOD, 80.27–90.99% reduction of ammonia nitrogen (NH 4
+ –N) and 93.09–93.65%
reduction of nitrate–nitrogen (NO 3
− –N) were achieved respectively in a separate
suspended growth batch reactor. The kinetic constants for SCOD removal, nitrification and denitrification also evaluated from the results of batch study using Monod
equation and Lineweaver–Burk plot for designing of a suitable pilot-scale bioreactor
for treatment of real-life dairy wastewater.
Keywords Dairy wastewater · Suspended growth batch reactor · SCOD
reduction · Nitrification · Denitrification · Kinetic coefficient
D. Raha
Lecturer in Civil Engineering, Maynaguri Government Polytechnic, Maynaguri, Jalpaiguri, West
Bengal 735302, India
e-mail: dipankarraha.jal@gmail.com
P. Kundu
Lecturer, Department of Food Processing Technology, Mirmadan Mohanlal Government
Polytechnic, Plassey, Nadia, West Bengal 741156, India
e-mail: kundupradyut@yahoo.co.in
S. Mukherjee (B)
Professor, Civil Engineering Department, Jadavpur University, Kolkata, West Bengal 700032,
India
e-mail: mukherjeesomnath19@gmail.com
© Springer Nature Singapore Pte Ltd. 2021
D. Ramkrishna et al. (eds.), Advances in Bioprocess Engineering and Technology,
Lecture Notes in Bioengineering,
https://doi.org/10.1007/978-981-15-7409-2_38
383
of Dairy Effluent Using Mixed Culture
in a Suspended Growth Batch Reactor
Dipankar Raha, Pradyut Kundu, and Somnath Mukherjee
Abstract A batch kinetic study was performed for examining potential application
of microbial culture, for organic carbon oxidation, nitrification and denitrification
from simulated real-life dairy wastewater. After necessary characterization of waste
samples, it was found that SCOD, NH 4
+ –N and NO 3
− –N were within the range
of 1116.7–1361.2, 41.4–58.13 and 19.75–23.96 mg/L, respectively. Time concentration study showed that after 24 h of contact time, 93.80–97.30% reduction of
SCOD, 80.27–90.99% reduction of ammonia nitrogen (NH 4
+ –N) and 93.09–93.65%
reduction of nitrate–nitrogen (NO 3
− –N) were achieved respectively in a separate
suspended growth batch reactor. The kinetic constants for SCOD removal, nitrification and denitrification also evaluated from the results of batch study using Monod
equation and Lineweaver–Burk plot for designing of a suitable pilot-scale bioreactor
for treatment of real-life dairy wastewater.
Keywords Dairy wastewater · Suspended growth batch reactor · SCOD
reduction · Nitrification · Denitrification · Kinetic coefficient
D. Raha
Lecturer in Civil Engineering, Maynaguri Government Polytechnic, Maynaguri, Jalpaiguri, West
Bengal 735302, India
e-mail: dipankarraha.jal@gmail.com
P. Kundu
Lecturer, Department of Food Processing Technology, Mirmadan Mohanlal Government
Polytechnic, Plassey, Nadia, West Bengal 741156, India
e-mail: kundupradyut@yahoo.co.in
S. Mukherjee (B)
Professor, Civil Engineering Department, Jadavpur University, Kolkata, West Bengal 700032,
India
e-mail: mukherjeesomnath19@gmail.com
© Springer Nature Singapore Pte Ltd. 2021
D. Ramkrishna et al. (eds.), Advances in Bioprocess Engineering and Technology,
Lecture Notes in Bioengineering,
https://doi.org/10.1007/978-981-15-7409-2_38
383