Simultaneous Treatment of Graywater and Waste Gas in a Biological Trickling Filter
Authors: McLamore, Eric; Sharvelle, Sybil; Huang, Zhen; Banks, Kathy
Source: Water Environment Research, Volume 80, Number 11, November 2008 , pp. 2096-2103(8)
Publisher: Water Environment Federation
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Abstract:
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.Keywords: biotrickling filter; graywater; nitrification; hydrogen sulfide; sustainable systems
Document Type: Research article
DOI: 10.2175/106143008X266788
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