Publication Cover
Journal of Environmental Science and Health, Part A
Toxic/Hazardous Substances and Environmental Engineering
Volume 38, 2003 - Issue 11
48
Views
3
CrossRef citations to date
0
Altmetric
Original Articles

Ammonium Removal Using a Vertically Moving Biofilm System

, &
Pages 2483-2494 | Received 14 Mar 2003, Published online: 06 Feb 2007
 

Abstract

Ammonium-nitrogen (NH4-N) removal using a vertically moving biofilm system was investigated at a temperature of 11°C. The biofilms in this process were grown on biofilm modules, consisting of high surface area plastic media, which were vertically and repeatedly moved up into the air and down into the wastewater. The maximum NH4-N removal efficiency was up to 98.8% and the areal NH4-N removal rates, based on the surface area of the biofilm modules, were within the range of 0.68–1.94 g NH4-N m−2 day−1. The kinetics of ammonium removal occurring after carbonaceous oxidation was completed can be simulated by using a zero-order empirical model. The ammonium removal rate was found to be proportional to the square root of the mass of biofilms on the modules. Monitoring DO concentrations in the bulk fluid showed that the vertically moving biofilm system possessed good aeration efficiency.

Log in via your institution

Log in to Taylor & Francis Online

PDF download + Online access

  • 48 hours access to article PDF & online version
  • Article PDF can be downloaded
  • Article PDF can be printed
USD 61.00 Add to cart

Issue Purchase

  • 30 days online access to complete issue
  • Article PDFs can be downloaded
  • Article PDFs can be printed
USD 709.00 Add to cart

* Local tax will be added as applicable

Related Research

People also read lists articles that other readers of this article have read.

Recommended articles lists articles that we recommend and is powered by our AI driven recommendation engine.

Cited by lists all citing articles based on Crossref citations.
Articles with the Crossref icon will open in a new tab.