Title :
Research on Intensive Ammonia Removal in Carrousel Oxidation Ditch
Author :
Zhang, Jian ; Qiu, Lingfeng ; Qiu, Gaoshun ; Chen, Yiming
Author_Institution :
Coll. of Environ. & Resources, Fuzhou Univ., Fuzhou, China
Abstract :
The study on the impact factors of simultaneous nitrification and denitrification (SND) in the Carrousel oxidation ditch was carried out based on pilot-scale to treat low C/N urban sewage. With the effect of SND in the oxidation ditch, the system could achieve the best removal for nitrogen of urban sewage with low C/N. And with SRT of 20 d, R of 50%, MLSS of 4000 mg/L, the ammonia, total nitrogen (TN) of effluent were lower than 5 mg/L, 13 mg/L, respectively. Based on this the kinetics model of TN removal was established, which could control the concentration of TN in the effluent effectively by adjusting HRT, MLSS and other parameters in the oxidation ditch, which would provide effective theory basis for optimization and adjustment of the process.
Keywords :
ammonia; effluents; oxidation; sewage treatment; carrousel oxidation ditch; effluents; intensive ammonia removal; nitrogen removal; process optimization; simultaneous nitrification-and-denitrification method; urban sewage treatment; Effluents; Kinetic theory; Microorganisms; Nitrogen; Oxidation; Recycling; Water pollution; Carrousel oxidation ditch; SND; low C/N ratio; urban sewage;
Conference_Titel :
Computer Distributed Control and Intelligent Environmental Monitoring (CDCIEM), 2012 International Conference on
Conference_Location :
Hunan
Print_ISBN :
978-1-4673-0458-0
DOI :
10.1109/CDCIEM.2012.139
