Effect of Dilution on Nitrogen Removal from Ammonia Plant Effluent using Chlorella vulgaris and Spirulina platensis | ||
| Pollution | ||
| مقاله 14، دوره 7، شماره 3، پاییز 2021، صفحه 681-691 اصل مقاله (922.09 K) | ||
| نوع مقاله: Original Research Paper | ||
| شناسه دیجیتال (DOI): 10.22059/poll.2021.321013.1045 | ||
| نویسندگان | ||
| Jaber Safari1؛ Hossein Abolghasemi2؛ Mohammad Esmaili1؛ Hossein Delavari Amrei* 3؛ Reza Pourjamshidian1 | ||
| 1Center for Separation Processes Modeling and Nano-Computations, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran | ||
| 2Center for Separation Processes Modeling and Nano-Computations, School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran Oil and Gas Center of Excellence, University of Tehran, Tehran, Iran | ||
| 3Department of Chemical Engineering, Faculty of Engineering, University of Bojnord, Bojnord, Iran | ||
| چکیده | ||
| In this study, the removal of nitrogen from effluent of ammonia plant by Chlorella vulgaris and Spirulina platensis was investigated. For this purpose, microalgae were cultivated in three diluting percentage of the wastewater (1, 3, and 5%) at 29±1 ◦C and light intensity at surface of culture were adjusted to 150 µmol photon / (m2. s). The results showed that Spirulina platensis is more capable than Chlorella vulgaris to grow in high levels of total nitrogen concentration. Also, maximum biomass production rate happened in 1% diluted samples for Chlorella vulgaris and 3% for Spirulina platensis. Furthermore, Chlorella vulgaris reduce total nitrogen concentration up to 55%. This value for Spirulina platensis was about 96%. However, for both species the removal of nitrogen in 1% diluted wastewater was maximum. According to the results of diluted wastewater of ammonia plant, it is a suitable culture medium for microalgae and it can be used to remove the nitrogen before entering the wastewater in nature. | ||
| کلیدواژهها | ||
| Ammonia plant؛ Wastewater treatment؛ Diluting percentage؛ Nitrogen removal؛ Microalgae | ||
| مراجع | ||
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