Skip to main content

IMIS

A new integrated search interface will become available in the next phase of marineinfo.org.
For the time being, please use IMIS to search available data

 

[ report an error in this record ]basket (1): add | show Print this page

one publication added to basket [15095]
Fixed-biofilm reactors in water recirculating aquaculture systems: nitrification kinetics, design criteria and expected performance
Bovendeur, J.; Klapwijk, A. (1989). Fixed-biofilm reactors in water recirculating aquaculture systems: nitrification kinetics, design criteria and expected performance, in: De Pauw, N. et al. (Ed.) Aquaculture: a biotechnology in progress: volume 1. pp. 1061-1067
In: De Pauw, N. et al. (1989). Aquaculture: a biotechnology in progress: volume 1. European Aquaculture Society: Bredene. ISBN 90-71625-03-6. 1-592 pp., more

Available in  Authors 
Document type: Conference paper

Keyword
    Marine/Coastal

Authors  Top 
  • Bovendeur, J.
  • Klapwijk, A.

Abstract
    The elimination of total ammonia by nitrification has been examined in batch experiments in which samples of attached biofilm material were loaded with pre-settled fish tank effluents. Depending on the ratio of the concentrations of total ammonia and dissolved oxygen, the nitrification reaction could be described either by 1/2-order or 0-order kinetics. The biofilm showed ammonia-diffusion-limitation ( 1/2-order kinetics towards the total ammonia concentration) in case the oxygen/total ammonia concentration ratio exceeded 3:6; in other cases oxygen- diffusion-limitation or metabolism-limitation (1/2-order kinetics towards the total ammonia concentration) occurred. Based on the observed biofilm nitrification kinetics a design philosophy is presented in relation to the diurnal variation of total ammonia production by fish. Attention is paid to: a) size of the reactor; b) required water recirculation rate; c) required total water volume; and d) expected diurnal variation of the total ammonia concentration in the fish tank.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors