Dissolved Oxygen Distribution in a Rectangular Airlift Bubble Column for Biological Nitrogen Removal

Autor:	Masaaki Nakamura, Lingguang Meng, Yoshiyuki Bando
Rok vydání:	2004
Předmět:	Mass transfer coefficient Chromatography General Chemical Engineering Airlift Analytical chemistry chemistry.chemical_element General Chemistry Oxygen balance Nitrogen Volumetric flow rate chemistry Wastewater Mass transfer Volume fraction
Zdroj:	JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 37:1005-1011
ISSN:	1881-1299 0021-9592
DOI:	10.1252/jcej.37.1005
Popis:	The rectangular airlift bubble column where anaerobic and aerobic regions coexisted was used, and the treatment of wastewater including nitrogen was performed. The effects of equipment and operation conditions on the gas holdup, liquid-phase volumetric mass transfer coefficient and liquid circulation flow rate were investigated in two different-size columns. On the basis of oxygen balance, the distribution of dissolved oxygen concentration in the column was calculated by using the experimental equations of flow characteristics. The results of wastewater treatment proved that the nitrogen removal was controlled by the volume fraction of anaerobic region.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f39ea4c4aa8dce49d43d089f58a8c069 https://doi.org/10.1252/jcej.37.1005 Zobrazit plný text záznamu