caa a22 4500 605500541 CHVBK 20210128100556.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s00253-014-6372-5 doi (NATIONALLICENCE)springer-10.1007/s00253-014-6372-5 Treatment of ferrous-NTA-based NO x scrubber solution by an up-flow anaerobic packed bed bioreactor [Elektronische Daten] [B. Chandrashekhar, Nidhi Sahu, Heena Tabassum, Padmaraj Pai, Amruta Morone, R. Pandey] A bench scale system consisting of an up-flow packed bed bioreactor (UAPBR) made of polyurethane foam was used for the treatment and regeneration of aqueous solution of ferrous-NTA scrubbed with nitric oxide (NO). The biomass in the UAPBR was sequentially acclimatized under denitrifying and iron reducing conditions using ethanol as electron donor, after which nitric oxide (NO) gas was loaded continuously to the system by absorption. The system was investigated for different parameters viz. pH, removal efficiency of nitric oxide, biological reduction efficiency of FeIINTA-NO and COD utilization. The FeIINTA-NO reduction efficiency reached 87.8% at a loading rate of 0.24mmolL−1h−1, while the scrubber efficiency reached more than 75% with 250ppm NO. Stover-Kincannon and a Plug-flow kinetic model based on Michaelis-Menten equation were used to describe the UAPBR performance with respect to FeIINTA-NO and COD removal. The Stover-Kincannon model was found capable of describing the FeIINTA-NO reduction (R m = 8.92mMh−1 and K NO = 11.46mMh−1) while plug-flow model provided better fit to the COD utilization (U m = 66.62mgL−1h−1, K COD = 7.28mgL−1). Analyses for pH, FeIIINTA, ammonium, nitrite concentration, and FTIR analysis of the medium samples indicated degradation of NTA, which leads to ammonium and nitrite accumulation in the medium, and affect the regeneration process. Springer-Verlag Berlin Heidelberg, 2015 Ferrous NTA nationallicence NO x removal nationallicence Iron reduction nationallicence Stover-Kincannon Model nationallicence NTA degradation nationallicence Chandrashekhar B. Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut Sahu Nidhi Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut Tabassum Heena Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut Pai Padmaraj Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut Morone Amruta Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut Pandey R. Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/12(2015-06-01), 5281-5293 0175-7598 99:12<5281 2015 99 253 https://doi.org/10.1007/s00253-014-6372-5 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00253-014-6372-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Chandrashekhar B. Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut NATIONALLICENCE 700 1- Sahu Nidhi Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut NATIONALLICENCE 700 1- Tabassum Heena Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut NATIONALLICENCE 700 1- Pai Padmaraj Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut NATIONALLICENCE 700 1- Morone Amruta Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut NATIONALLICENCE 700 1- Pandey R. Environmental Biotechnology Division, CSIR-National Environmental Engineering Research Institute, Nehru Marg, 440020, Nagpur, Maharashtra, India aut NATIONALLICENCE 773 0- Applied Microbiology and Biotechnology Springer Berlin Heidelberg 99/12(2015-06-01), 5281-5293 0175-7598 99:12<5281 2015 99 253