Modeling of the effect of zeolite concentration on the biological nitrification process in the presence of sulfide and organic matter
| Autor: | Lorna Guerrero, Nicolás Palominos, Silvio Montalvo, César Huiliñir, Lidersi Acosta-Cordero, Fabio Carrera-Chapela, Rafael Borja |
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| Přispěvatelé: | Fondo Nacional de Desarrollo Científico y Tecnológico (Chile) |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Environmental Engineering
Sulfide Kinetics Sulfides Wastewater Water Purification Bioreactors Organic matter kKnetics Zeolite Humic Substances Nitrites chemistry.chemical_classification Nitrates Modeling General Medicine Nitrification chemistry Models Chemical Scientific method Environmental chemistry Zeolites Kinetic parameters Water Pollutants Chemical |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | 7 Tablas.-- 5 Figuras The evaluation of the nitrification kinetics in the simultaneous presence of sulfide and organic matter using zeolite as improver was the main goal of this work. According to the sensitivity and collinearity analyses, five parameters were the most sensitive in the model, whose calibrated values were: μ max, AOB = 0.02642 ± 0.002 h−1; μ max, NOB = 0.3307 ± 0.416 h−1; K S,NOB = 1.65·10−6 ± 2.85·10−6 mgHNO2-N/L; k S2 = 0.8213 ± 0.076 and n = 0.6537 ± 0.030. A good fit between the experimental data and the model’s results including the effect of zeolite on the kinetic parameters was obtained, with Theil inequality coefficient values between 0.109 and 0.007 for all the variables studied, with all of these values lower than 0.3. Thus, the model proposed is robust and can simulate the nitrification process in the presence of sulfide and organic matter when zeolite was used as improver. The authors acknowledge gratefully the financial support provided by FONDECYT (Chile) under Project 1170103 and PhD fellowship 21170147 awarded to L. Acosta-Cordero. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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