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Simultaneous nitritation-denitritation for the treatment of high-strength nitrogen in hypersaline wastewater by aerobic granular sludge.
Water Res. 2016 Jan 01; 88:329-336.WR

Abstract

Fish processing industries produce wastewater containing high amounts of salt, organic matter and nitrogen. Biological treatment of such wastewaters could be problematic due to inhibitory effects exerted by high salinity levels. In detail, high salt concentrations lead to the accumulation of nitrite due to the inhibition of nitrite-oxidizing bacteria. The feasibility of performing simultaneous nitritation and denitritation in the treatment of fish canning wastewater by aerobic granular sludge was evaluated, and simultaneous nitritation-denitritation was successfully sustained at salinities up to 50 gNaCl L(-1), with a yield of over 90%. The total nitrogen concentration in the effluent was less than 10 mg L(-1) at salinities up to 50 gNaCl L(-1). Nitritation collapsed above 50 gNaCl L(-1), and then, the only nitrogen removal mechanism was represented by heterotrophic synthesis. In contrast, organic matter removal was not affected by salinity but was instead affected by the organic loading rate (OLR). Both COD and BOD removal efficiencies were over 90%. The COD fractionation analysis indicated that aerobic granules were able to remove more than 95% of the particulate organic matter. Finally, results obtained in this work noted that aerobic granular sludge had an excellent ability to adapt under adverse environmental conditions.

Authors+Show Affiliations

Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy. Electronic address: santofabio.corsino@unipa.it.Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy.Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy.Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy.Dipartimento di Ingegneria Civile, Ambientale, Aerospaziale, dei Materiali, Università di Palermo, Viale delle Scienze, 90128 Palermo, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26512811

Citation

Corsino, Santo Fabio, et al. "Simultaneous Nitritation-denitritation for the Treatment of High-strength Nitrogen in Hypersaline Wastewater By Aerobic Granular Sludge." Water Research, vol. 88, 2016, pp. 329-336.
Corsino SF, Capodici M, Morici C, et al. Simultaneous nitritation-denitritation for the treatment of high-strength nitrogen in hypersaline wastewater by aerobic granular sludge. Water Res. 2016;88:329-336.
Corsino, S. F., Capodici, M., Morici, C., Torregrossa, M., & Viviani, G. (2016). Simultaneous nitritation-denitritation for the treatment of high-strength nitrogen in hypersaline wastewater by aerobic granular sludge. Water Research, 88, 329-336. https://doi.org/10.1016/j.watres.2015.10.041
Corsino SF, et al. Simultaneous Nitritation-denitritation for the Treatment of High-strength Nitrogen in Hypersaline Wastewater By Aerobic Granular Sludge. Water Res. 2016 Jan 1;88:329-336. PubMed PMID: 26512811.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Simultaneous nitritation-denitritation for the treatment of high-strength nitrogen in hypersaline wastewater by aerobic granular sludge. AU - Corsino,Santo Fabio, AU - Capodici,Marco, AU - Morici,Claudia, AU - Torregrossa,Michele, AU - Viviani,Gaspare, Y1 - 2015/10/22/ PY - 2015/07/27/received PY - 2015/10/05/revised PY - 2015/10/19/accepted PY - 2015/10/30/entrez PY - 2015/10/30/pubmed PY - 2016/9/30/medline KW - Aerobic granular sludge KW - Fish canning wastewater KW - Organic particulate matter KW - Salinity KW - Simultaneous nitritation–denitritation SP - 329 EP - 336 JF - Water research JO - Water Res. VL - 88 N2 - Fish processing industries produce wastewater containing high amounts of salt, organic matter and nitrogen. Biological treatment of such wastewaters could be problematic due to inhibitory effects exerted by high salinity levels. In detail, high salt concentrations lead to the accumulation of nitrite due to the inhibition of nitrite-oxidizing bacteria. The feasibility of performing simultaneous nitritation and denitritation in the treatment of fish canning wastewater by aerobic granular sludge was evaluated, and simultaneous nitritation-denitritation was successfully sustained at salinities up to 50 gNaCl L(-1), with a yield of over 90%. The total nitrogen concentration in the effluent was less than 10 mg L(-1) at salinities up to 50 gNaCl L(-1). Nitritation collapsed above 50 gNaCl L(-1), and then, the only nitrogen removal mechanism was represented by heterotrophic synthesis. In contrast, organic matter removal was not affected by salinity but was instead affected by the organic loading rate (OLR). Both COD and BOD removal efficiencies were over 90%. The COD fractionation analysis indicated that aerobic granules were able to remove more than 95% of the particulate organic matter. Finally, results obtained in this work noted that aerobic granular sludge had an excellent ability to adapt under adverse environmental conditions. SN - 1879-2448 UR - https://www.unboundmedicine.com/medline/citation/26512811/Simultaneous_nitritation_denitritation_for_the_treatment_of_high_strength_nitrogen_in_hypersaline_wastewater_by_aerobic_granular_sludge_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0043-1354(15)30306-7 DB - PRIME DP - Unbound Medicine ER -