title: Effect of migration and transformation of iron on the endogenous reduction of H2S in anaerobic landfill.
abstract: Hydrogen sulfide (H2S) is a major odor in landfill gas and needs urgent treatment. In this study, the effect of migration and transformation of iron on the endogenous reduction of H2S was investigated in two simulated landfills. The results showed that the H2S emission concentration from the landfill cover of conventional anaerobic landfill (CL) and anaerobic landfill with leachate recirculation (RL) could reach 19.4mgm(-3) and 24.1mgm(-3), respectively. However, the migration and transformation of iron in anaerobic landfill with different operational modes results in different endogenous reduction mechanism for H2S. The proportion of precipitation-reduction mechanism and oxidation-reduction mechanism in CL was 73.3% and 26.3%, respectively. But for RL, the function of oxidation was enhanced, and the sulfide content was reduced 23.1% compared with CL. The iron in landfill with leachate recirculation revealed good endogenous reduction effect on H2S control after a period of time landfilling.
authors.affiliation: Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China. Electronic address: longyy@zjgsu.edu.cn.
authors.forename: Yu-Yang
authors.initials: YY
authors.lastname: Long
authors.affiliation: Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China; Zhejiang Zone-King Environmental Sci & Tech Co., Ltd., 7F, Zhejiang Sanli Times Square, No. 536, Shaoxing Road, Hangzhou 310004, China.
authors.forename: Yao
authors.initials: Y
authors.lastname: Du
authors.affiliation: Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Fang
authors.affiliation: Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.affiliation: Zhejiang Provincial Solid Waste Management and Supervision Center, No. 306 Wenyilu, Hangzhou 310013, China.
authors.forename: Yan-Ni
authors.initials: YN
authors.lastname: He
authors.affiliation: Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, School of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310012, China.
authors.forename: Dong-Sheng
authors.initials: DS
authors.lastname: Shen
mesh_terms: D000693:Anaerobiosis; D006862:Hydrogen Sulfide / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D008956:Models, Chemical; D012037:Refuse Disposal; D064091:Waste Disposal Facilities
chemical_list: D007501:Iron; D006862:Hydrogen Sulfide
keywords: Endogenous reduction; Hydrogen sulfide; Iron; Landfill