On-line monitoring of nitrate and nitrite by UV spectrophotometry in a SBR process used for the treatment of industrial wastewaters
| Autor: | D. Mazouni, Meriem Bekri, Hoai Nam Pham, Jean-Claude Bouvier, T. Ribeiro, André Pauss, O. Schoefs, Jérôme Harmand |
|---|---|
| Přispěvatelé: | Laboratoire de Biotechnologie de l'Environnement [Narbonne] (LBE), Institut National de la Recherche Agronomique (INRA)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université de Technologie de Compiègne (UTC), Institut Polytechnique LaSalle Beauvais |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
WASTEWATER TREATMENT
General Chemical Engineering [SDV]Life Sciences [q-bio] 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Nitrate Spectrophotometry medicine SPECTROPHOTOMETRY ON-LINE-SENSOR Nitrite SBR 0105 earth and related environmental sciences medicine.diagnostic_test 010401 analytical chemistry GENIE CHIMIQUE 6. Clean water 0104 chemical sciences UV chemistry Scientific method Environmental chemistry [SDE]Environmental Sciences Environmental science Sewage treatment Uv spectrophotometry |
| Zdroj: | International Journal of Chemical Reactor Engineering International Journal of Chemical Reactor Engineering, De Gruyter, 2008, 6, pp.A106 Scopus-Elsevier HAL |
| ISSN: | 1542-6580 |
| Popis: | International audience; The objective is the adaptation of an existing UV spectrophotometer for the on-line monitoring of nitrate, nitrite and soluble COD during cycles of SBRs. An on-line filtering system was also developed in order to provide particle-free fluids to the sensor. The modified UV-spectrophotometer sensor (called "STAC") was implemented into a pilot-scale bioreactor at INRA-Narbonne, treating a semi-synthetic dairy wastewater. After a calibration and validation steps, results obtained during five months have shown that the on-line spectrophotometer sensor was able to efficiently monitor on-line nitrate, nitrite in SBR content. Ranges of detection were between 0 to 40 mg/L for nitrate and 0 to 18 mg/L for nitrite, with an accuracy of about 10%. The on-line estimation of soluble COD was less efficient. The major drawback was the time-consumption for the cleaning of the homemade on-line filter. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|