Simultaneous hydrogen sulphide and ammonia removal in a biotrickling filter: Crossed inhibitory effects among selected pollutants and microbial community change

Yiu Fai TSANG, Lei WANG, Hong CHUA

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19 Citations (Scopus)

Abstract

A coal slag-packed biotrickling filter inoculated with autotrophic sulphide oxidizing and ammonia oxidizing bacteria was successfully operated for co-treating hydrogen sulphide (H₂S) and ammonia (NH₃). Excellent removal efficiencies of H₂S (98.5%) and NH₃ (99.9%) were obtained at loadings of up to 120 g H₂S m⁻³ h⁻¹ and 80 gNH₃ m⁻³ h⁻¹, respectively. The inhibitory effects of selected pollutants and metabolic products on the treatment performance were evaluated through mass balance and bacterial community analyses. The presence of NH₃ significantly affected the composition of metabolic products of sulphide oxidation. Elemental sulphur was the dominant metabolite that ranged from 35% to 65%, whereas the amount of sulphite and thiosulphate generally increased up to 20%. However, a similar trend in the distribution of by-products to the results of nitrogen mass balance from sole NH₃ removal was observed. The predominant bacteria were also changed with different loading ratios (H₂S: NH₃). Copyright © 2015 Published by Elsevier B.V.
Original languageEnglish
Pages (from-to)389-396
JournalChemical Engineering Journal
Volume281
Early online dateJul 2015
DOIs
Publication statusPublished - 2015

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Hydrogen Sulfide
Hydrogen sulfide
hydrogen sulfide
Ammonia
microbial community
ammonia
filter
pollutant
Sulfides
mass balance
Bacteria
sulfide
Thiosulfates
Sulfites
bacterium
Coal
thiosulfate
sulfite
Metabolites
slag

Citation

Tsang, Y. F., Wang, L., & Chua, H. (2015). Simultaneous hydrogen sulphide and ammonia removal in a biotrickling filter: Crossed inhibitory effects among selected pollutants and microbial community change. Chemical Engineering Journal, 281, 389-396.

Keywords

  • Biotrickling filter
  • Hydrogen sulphide
  • Ammonia
  • Simultaneous biodegradation
  • Microbial community