Derivative spectrophotometry for NO3- determination in sanitary sewages

Autores

DOI:

https://doi.org/10.13083/reveng.v29i1.11580

Palavras-chave:

Effluent , Nitrate , Salicylate, Second derivative, Spectrophotometric method

Resumo

The objective of this study was to observe the feasibility of using the UV spectrophotometric method of the second derivative in the determination of nitrogen in the form of nitrate in sanitary sewers, since this method is indicated for water with low content of organic matter. Therefore, the results obtained in that method were compared with the salicylate methodology. The Mann-Whitney test showed a significant difference (? = 5%) between the results obtained in both methods. However, when compared, the difference between them was less than 0.25 mg L-1 in half of the observations. Despite this significant difference, the use of the second derivative method for sanitary sewage samples showed satisfactory performance.

Downloads

Não há dados estatísticos.

Referências

ALIMOHAMMADI, M.; LATIFI, N.; NABIZADEH, R.; YAGHMAEIAN, K.; MAHVI, A. H.; YOUSEFI, M.; HEIDARINEJAD, Z. Determination of nitrate concentration and its risk assessment in bottled water in Iran. Data in Brief, v. 19, p. 2133-2138, 2018.

APHA. American Public Health Association. Standard Methods for the Examination of Water and Wastewater. 23 ed, Washington: APHA, 2017.

BLAISDELL, J.; TURYK, M. E.; ALMBERG, K. S.; JONES, R.M.; STAYNER, L.T. Prenatal exposure to nitrate in drinking water and the risk of congenital anomalies. Environmental research, v.176, p. e108553, 2019.

FERREE, M.; SHANNON, R. Evaluation of a second derivative UV/Visible spectroscopy technique for nitrate and total nitrogen analysis of wastewater samples. Water research, v.35, n.1, p. 327-32, 2001.

HOATHER, R. C.; RACKHAM, R. F. Oxidised nitrogen in waters and sewage effluents observed by ultra-violet spectrophotometry. The Analyst, v. 84, p. 548-551, 1959.

OLIVEIRA, F. M. Aplicação e testes do método Apha-4500-NO3-C para determinação de nitratos em águas por leitura em UV com segunda-derivada. Revista Analytica, v.27, p. 80-88, 2007.

SILVA, F. M.; LACERDA, P. S. B.; JONES JUNIOR, J. Desenvolvimento sustentável e química verde. Química Nova, v. 28, n. 1, p. 103-110, 2005.

SINGH, P., BEG, Y. R., NISHAD, G. R. A review on spectroscopic methods for determination of nitrite and nitrate in environmental samples. Talanta, v. 191, n. 1, p. 364-381, 2019.

TEMKIN, A.; EVANS, S.; MANIDIS, T.; CAMPBELL, C.; NAIDENKO, O. V. Exposure-based assessment and economic valuation of adverse birth outcomes and cancer risk due to nitrate in United States drinking water. Environmental research, v.176, p. e108518, 2019.

YANG, J. E.; SKOGLEY, E. O.; SCHAFF, B. E.; KIM, J. J. A simple spectrophotometric determination of nitrate in water, resin and soil extracts. Soil Science Society of American Journal, v. 62, n. 4, p. 1108-1115, 1998.

Downloads

Publicado

2020-12-31

Como Citar

Mesquita, T. C. R., Silva, P. L. C., Vaz, L. R. L., & Carraro Borges, A. (2020). Derivative spectrophotometry for NO3- determination in sanitary sewages. Revista Engenharia Na Agricultura - REVENG, 28(Contínua), 579–583. https://doi.org/10.13083/reveng.v29i1.11580

Edição

Seção

Recursos Hídricos e Ambientais

Artigos mais lidos pelo mesmo(s) autor(es)