title: Elimination of sulphur odours at landfills by bioconversion and the corona discharge plasma technique.
abstract: Hydrogen sulphide (H2S) contributes a lot to odours at landfills, which is a threat to the environment and the health of the staff therein. To mitigate its emission, the bioconversion within landfill cover soils (LCSs) was introduced. H2S emission and concentration both in the field air above the landfill and in microcosm testing were surveyed. Results indicated that H2S emission and concentration in the landfill varied with landfill seasons and sites. There existed relationship between H2S concentration and fluxes spatially and temporally. To characterize and assess the spatial and temporal diversity of sulphur-oxidizing bacteria (SOB) and sulphate-reducing bacteria (SRB) in the LCSs, the terminal-restriction fragment length polymorphism technique was employed. Using the functional genes of dsrB and soxB, SOB, including Halothiobacillus, Rhodothalassium, Paracocccus, Allochromatium, and Thiobacillus, and SRB, including Desulfovibrio, Syntrophobacter, Desulfomonile and Desulfobacca, were identical and exhibited the dominant role in the LCSs. By employing an alternative available corona reactor, more than 90% removal efficiencies of sulphides were demonstrated, suggesting that the LCSs for eliminating odours in a lower concentration would be feasible.
authors.affiliation: a Department of Environmental Engineering, Laboratory for Electrochemistry and Energy Storage, State Key Laboratory of Clean Energy Utilization , Zhejiang University , Hangzhou 310027 , People's Republic of China.|b College of Environmental and Resources Science , Zhejiang University , Hangzhou 310058 , People's Republic of China.
authors.forename: Fangfang
authors.initials: F
authors.lastname: Xia
authors.affiliation: a Department of Environmental Engineering, Laboratory for Electrochemistry and Energy Storage, State Key Laboratory of Clean Energy Utilization , Zhejiang University , Hangzhou 310027 , People's Republic of China.
authors.forename: Xin
authors.initials: X
authors.lastname: Liu
authors.affiliation: a Department of Environmental Engineering, Laboratory for Electrochemistry and Energy Storage, State Key Laboratory of Clean Energy Utilization , Zhejiang University , Hangzhou 310027 , People's Republic of China.|c Environmental Monitoring Centre of Zhejiang Province , Hangzhou 310013 , People's Republic of China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Kang
authors.affiliation: b College of Environmental and Resources Science , Zhejiang University , Hangzhou 310058 , People's Republic of China.
authors.forename: Ruo
authors.initials: R
authors.lastname: He
authors.affiliation: a Department of Environmental Engineering, Laboratory for Electrochemistry and Energy Storage, State Key Laboratory of Clean Energy Utilization , Zhejiang University , Hangzhou 310027 , People's Republic of China.
authors.forename: Zucheng
authors.initials: Z
authors.lastname: Wu
mesh_terms: D000393:Air Pollutants / Q000032:analysis / Q000378:metabolism*; D000397:Air Pollution / Q000517:prevention & control; D001419:Bacteria / Q000235:genetics / Q000378:metabolism*; D019149:Bioreactors; D002681:China; D004269:DNA, Bacterial / Q000032:analysis; D055664:Electrochemical Techniques; D005798:Genes, Bacterial; D006862:Hydrogen Sulfide / Q000032:analysis / Q000378:metabolism*; D009812:Odorants / Q000032:analysis / Q000517:prevention & control*; D010084:Oxidation-Reduction; D010802:Phylogeny; D013455:Sulfur / Q000378:metabolism*; D064091:Waste Disposal Facilities
chemical_list: D000393:Air Pollutants; D004269:DNA, Bacterial; D013455:Sulfur; D006862:Hydrogen Sulfide
keywords: clone; corona discharge plasma; elimination; hydrogen sulphide emission; sulphur bioconversion