title: Hydrogen sulfide and odor removal by field-scale biotrickling filters: influence of seasonal variations of load and temperature.
abstract: Two biotrickling filters were set up at two wastewater treatment plants (WWTP) in The Netherlands to investigate their effectiveness for treatment of odorous waste gases from different sources. One biotrickling filter was installed at Nieuwe Waterweg WWTP in Hook of Holland to study the hydrogen sulfide removal from headworks waste air. The other reactor was installed at Harnaschpolder WWTP (treating wastewater of the city of The Hague) to remove mercaptans and other organic compounds (odor) coming from the emissions of the anaerobic tanks of the biological nutrient removal (BNR) activated sludge. The performance of both units showed a stable and highly efficient operation under seasonal variations of load and temperature over nearly one year of monitoring. The Nieuwe Waterweg unit achieved removals of up to 99%, corresponding to a maximum daily average elimination capacity (EC) of 55.8 g H(2)S/m(3)/h at an empty bed residence time (EBRT) as short as 8.5 s. Odor reduction at the Harnaschpolder unit was 95% at an EBRT of 18.9 s, with average outlet concentration lower than the objective value which was established as 1000 European Odor Units (OU(E)/m(3)).
authors.affiliation: Research Group GI2AM, Department of Chemical Engineering, University of Valencia, Burjassot, Spain.
authors.forename: Carlos
authors.initials: C
authors.lastname: Lafita
authors.forename: Josep M
authors.initials: JM
authors.lastname: Penya-Roja
authors.forename: Feliu
authors.initials: F
authors.lastname: Sempere
authors.forename: Albert
authors.initials: A
authors.lastname: Waalkens
authors.forename: Carmen
authors.initials: C
authors.lastname: Gabaldón
mesh_terms: D000393:Air Pollutants / Q000737:chemistry* / Q000378:metabolism*; D000397:Air Pollution / Q000517:prevention & control*; D000693:Anaerobiosis; D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D005374:Filtration / Q000295:instrumentation / Q000379:methods*; D006862:Hydrogen Sulfide / Q000737:chemistry / Q000378:metabolism; D009426:Netherlands; D009812:Odorants / Q000032:analysis; D010865:Pilot Projects; D012972:Sodium Hydroxide / Q000737:chemistry; D055549:Volatile Organic Compounds / Q000737:chemistry / Q000378:metabolism; D014865:Waste Disposal, Fluid
chemical_list: D000393:Air Pollutants; D055549:Volatile Organic Compounds; D012972:Sodium Hydroxide; D006862:Hydrogen Sulfide