Simultaneous Treatment of Graywater and Waste Gas in a Biological Trickling Filter

Eric McLamore, Sybil Sharvelle, Zhen Huang, Kathy Banks

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Biological processors are typically used in liquid- and gas-phase remediation as separately staged systems. This research presents a novel application of a biotrickling filter operated for simultaneous treatment of contaminants present in graywater and waste gas (ammonia and hydrogen sulfide). Liquid- and gas-phase contaminants were monitored via bioreactor influent/effluent samples over the course of a 300-day study. An oxygen-based bioassay was used to determine spatial location of the functional groups involved in the biodegradation of surfactants, dissolved hydrogen sulfide, and ammonium. Results indicated that a biotrickling filter is able to support the wide range of microbial species required to degrade the compounds found in graywater and waste gas, maintaining conversion efficiencies greater than 90% for parent surfactant compounds and waste gas constituents. These results provide evidence of an operational scheme that potentially reduces footprint size and cost of graywater/waste gas biotreatment.

Original languageEnglish (US)
Pages (from-to)2096-2103
Number of pages8
JournalWater Environment Research
Issue number11
StatePublished - Nov 2008


  • Biotrickling filter
  • Graywater
  • Hydrogen sulfide
  • Nitrification
  • Sustainable systems

ASJC Scopus subject areas

  • Environmental Chemistry
  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution


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