skip to main content
Show Results with: Show Results with:

Evaluation of hydraulic characteristics of a pilot-scale air-lift internal-loop bioreactor

Abbas, Ghulam et al.

Journal of environmental science and health. Part A. Toxic/hazardous substances & environmental engineering. Volume 50:Issue 3 (2015); pp 332-339 -- Taylor & Francis

Online access

  • Title:
    Evaluation of hydraulic characteristics of a pilot-scale air-lift internal-loop bioreactor
  • Author: Abbas, Ghulam;
    Wang, Lan;
    Zhang, Hongtao;
    Zheng, Ping;
    Li, Wei;
    Zhang, Meng;
    Zeb, Bibi Saima;
    Zhang, Jiqiang
  • Found In: Journal of environmental science and health. Part A. Toxic/hazardous substances & environmental engineering. Volume 50:Issue 3 (2015); pp 332-339
  • Journal Title: Journal of environmental science and health. Part A. Toxic/hazardous substances & environmental engineering
  • Subjects: Ecology--periodicals; Hazardous Substances--periodicals; Environmental engineering--Periodicals; Environmental sciences--Periodicals; Air flow effect--dead zone--flow pattern--hydrodynamics--liquid flow effect--residence time distribution--tracer test; Dewey: 628
  • Rights: Licensed
  • Publication Details: Taylor & Francis
  • Abstract:

    Using sodium fluoride as tracer, residence time distribution technique was employed to evaluate the hydraulic characteristics of a pilot-scale Internal-Loop Airlift Bio-particle (ILAB) bioreactor that was a novel system for ammonia removal from wastewater. The results showed that the flow pattern of ILAB reactor was close to completely mixed reactor under all the tested air flow rates and liquid flow rates (with average N of 1.88). The total dead zone (TDZ) was 32.43% with biological dead zone (BDZ) of 20.66% and hydraulic dead zone (HDZ) of 8.95%. At higher air flow rates, the flow pattern of reactor approached that of completely mixed reactor ( N from 2.72 to 1.54), and the increase of air flow rate gave rise to the decrease of TDZ in the reactor (from 36.24% to 23.00%). Whereas at higher liquid flow rates, the flow pattern of ILAB reactor got away from that of completely mixed reactor ( N from 1.51 to 1.72), and the increase of liquid flow rate yielded a rise of TDZ in the reactor (from 28.48% to 36.84%). The study highlighted that the effect of air flow rate on flow pattern and TDZ of the reactor was greater than that of liquid flow rate.


  • Identifier: System Number: ETOCvdc_100027377841.0x000001; Journal ISSN: 1093-4529; doi/10.1080/10934529.2015.981125
  • Publication Date: 2015
  • Physical Description: Electronic
  • Shelfmark(s): 4979.393300
  • UIN: ETOCvdc_100027377841.0x000001

Searching Remote Databases, Please Wait