Removal of malodorous gases from swine manure by a polyurethane biofilter inoculated with heterotrophic and autotrophic bacteria

Yyun Ok Lee, Ku Cho Chun, Wook Ryu Hee, Kyung Suk Cho

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Removal of malodorous gases from swine manure by a polyurethane biofilter inoculated with heterotrophic and autotrophic bacteria was investigated. Ammonia, hydrogen sulfide and other gases could be efficiently treated at 3-3.6 second of empty bed retention time by the polyurethane biofilter. In the range of SV 200-1,200h-1 the average removal efficiency of odor was about 89% when the odor unit of inlet gas was below 4100. Odor elimination capacity of the polyurethane biofilter was 1.8 x 105-5.0 x 107 OU-3.h--1 that were 84-90% of the inlet load. The critical loads of NH3 and H2S, which mean 97% removal with respect to the inlet loads, were 31 and 27 g.m-3.h-1 respectively. The maximum elimination capacities of NH3 and H2S were 56 and 157 g.m-3.h-1, respectively. Although the removability for NH3 and H2S was not influenced by H2S/NH3 ratio (ppmv/ppmv), the H2S removability was inhibited by high H2S concentration more than 80 ppmv.

Original languageEnglish
Pages (from-to)91-97
Number of pages7
JournalKorean Journal of Applied Microbiology and Biotechnology
Volume30
Issue number1
StatePublished - 2002

Keywords

  • Ammonia
  • Biofilter
  • Hydrogen sulfide
  • Malodorous gases
  • Odor unit
  • Swine manure

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