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Adsorption of ammonium to biologically aerated filter backwashed sludge

  • Hongbo Hu*
  • , Hongjun Han
  • , Jie Yao
  • *Corresponding author for this work
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Ammonium adsorption characteristics of the denitrifying filter and the biologically aerated filter backwashed sludge and influence factors such as sludge concentration, sludge activity and effect of chemical coagulants were investigated. Ammonium was found to be adsorbed to both kinds of backwashed sludge. The backwashed sludge in biologically aerated filter adsorbed more ammonium than that in denitrifying filter in the same concentration of the sludge. The adsorbed amount of ammonium is increased along with the increment of backwashed sludge concentration, and the adsorbed amount of ammonium reach 1.03mg/L to 4.35mg/L in denitrifying filter and 1.95mg/L to 6.21mg/L in BAF filter when the sludge concentration is increased from 500mg/L to 3000mg/L. Adsorption performance of sterilized sludge and original sludge is similar. The impact of chemical coagulants on the adsorption capacity of backwashed sludge was studied both in denitrifying filter and biologically aerated filter.

Original languageEnglish
Title of host publication2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
DOIs
StatePublished - 2010
Event4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010 - Chengdu, China
Duration: 18 Jun 201020 Jun 2010

Publication series

Name2010 4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010

Conference

Conference4th International Conference on Bioinformatics and Biomedical Engineering, iCBBE 2010
Country/TerritoryChina
CityChengdu
Period18/06/1020/06/10

Keywords

  • Adsorption
  • Ammonium
  • Backwashed sludge
  • Biologically aerated filter
  • Denitrifying filter

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