Characteristics of H2S emission from aged refuse after excavation exposure

Shen, Dongsheng; Du, Yao; Yuan, Fang; Hu, Lifang; Fang, Chengran; Ye, Long

doi:10.1016/j.jenvman.2015.02.024

Cited by 9 publications

(5 citation statements)

References 29 publications

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“…Hydrogen sulfide (H 2 S) is the major contaminant in the exploration, transmission, and development of natural gas (Abdelnaby et al 2020 ). Because of its highly toxic, malodorous, and corrosive properties, it has detrimental effects on human and animal health (Christia-Lotter et al 2007 ) as well as environmental safety (Tang et al 2009 ; Shen et al 2015 ; Monnot et al 2017 ). Various physicochemical and biological technologies for natural gas desulfurization have been developed for decades (Muñoz et al 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Development of whole-cell catalyst system for sulfide biotreatment based on the engineered haloalkaliphilic bacterium

et al. 2021

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Microorganisms play an essential role in sulfide removal. Alkaline absorption solution facilitates the sulfide’s dissolution and oxidative degradation, so haloalkaliphile is a prospective source for environmental-friendly and cost-effective biodesulfurization. In this research, 484 sulfide oxidation genes were identified from the metagenomes of the soda-saline lakes and a haloalkaliphilic heterotrophic bacterium Halomonas salifodinae IM328 (=CGMCC 22183) was isolated from the same habitat as the host for expression of a representative sequence. The genetic manipulation was successfully achieved through the conjugation transformation method, and sulfide: quinone oxidoreductase gene (sqr) was expressed via pBBR1MCS derivative plasmid. Furthermore, a whole-cell catalyst system was developed by using the engineered strain that exhibited a higher rate of sulfide oxidation under the optimal alkaline pH of 9.0. The whole-cell catalyst could be recycled six times to maintain the sulfide oxidation rates from 41.451 to 80.216 µmol·min−1·g−1 dry cell mass. To summarize, a whole-cell catalyst system based on the engineered haloalkaliphilic bacterium is potentiated to be applied in the sulfide treatment at a reduced cost.

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Section: Introductionmentioning

confidence: 99%

Development of whole-cell catalyst system for sulfide biotreatment based on the engineered haloalkaliphilic bacterium

et al. 2021

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“…Commonly, hydrogen sulfide gas is released in high quantities during excavation of landfills or swamps [7,8], and in higher amounts during a volcanic activity [9][10][11]. Furthermore, H 2 S gas is present in petrochemical reservoirs-in oil and natural gas wells, pipelines where unrefined petroleum is transported, and in refinery stations where H 2 S is removed [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

A Novel Application of Electroactive Polyimide Doped with Gold Nanoparticles: As a Chemiresistor Sensor for Hydrogen Sulfide Gas

2019

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This research paper presents a new application of electroactive polyimide doped with gold nanoparticles (PI/AuNPs) as a chemiresistor sensor for detecting hydrogen sulfide gas. The synthesis of PI/AuNPs was done in a simple 3-step process of polymerization using the as prepared amine-capped aniline trimer (ACAT), followed by imidization, and doping. Spectral analyses via FTIR, LC-MS and 1H-NMR confirmed the formation of amine-capped aniline trimer with a MW of 288 g mol−1. Comparison of ACAT, BSAA, and PI FTIR spectra showed successful polymerization of the last, while XRD validated the incorporation of metal nanoparticles onto the polymer matrix, showing characteristic diffraction peaks corresponding to gold. Furthermore, TEM, and FE-SEM revealed the presence of well-dispersed Au nanoparticles with an average diameter of about 60 nm. The electroactive PI/AuNPs-based sensor showed a sensitivity of 0.29% ppm−1 H2S at a linear concentration range of 50 to 300 ppm H2S (r = 0.9777). The theoretical limit of detection was found at 0.142 ppm or 142 ppb H2S gas. The sensor provided a stable response reading at an average response time of 43 ± 5 s, which was easily recovered after an average time of 99 ± 5 s. The sensor response was highly repeatable and reversible, with RSD values of 8.88%, and 8.60%, respectively. Compared with the performance of the conventional conducting polyaniline also doped with gold nanoparticles (PANI/AuNPs), the fabricated electroactive PI/AuNPs exhibited improved sensing performance making it a potential candidate in monitoring H2S in the environment and for work-related safety.

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“…Commonly, hydrogen sulfide gas is released in high quantities during excavation of landfills or swamps [7,8], and in higher amounts during a volcanic activity [9][10][11]. Furthermore, H2S gas is present in petrochemical reservoirs --in oil and natural gas wells, pipelines where unrefined petroleum is transported, and in refinery stations where H2S is removed [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

A Novel Application of Electroactive Polyimide Doped with Gold Nanoparticles: As a Chemiresistor Sensor for Hydrogen Sulfide Gas

Padua¹,

Yeh²,

Santiago³

2019

Preprint

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This research paper presents a new application of electroactive polyimide doped with gold nanoparticles (PI/AuNPs) as a chemiresistor sensor for detecting hydrogen sulfide gas. The synthesis of PI/AuNPs was done in a simple 3-step process of polymerization using the as prepared amine-capped aniline trimer (ACAT), followed by imidization, and doping. Spectral analyses via FTIR, LC-MS and 1H-NMR confirmed the formation of amine-capped aniline trimer with a MW of 288 g mol-1. Comparison of ACAT, BSAA, and PI FTIR spectra showed successful polymerization of the last, while XRD validated the incorporation of metal nanoparticles onto the polymer matrix showing characteristic diffraction peaks corresponding to gold. Furthermore, TEM, and FE-SEM revealed the presence of well-dispersed Au nanoparticles with an average diameter of about 60nm. The electroactive PI/AuNPs-based sensor showed a sensitivity of 0.29% ppm-1 H2S at a linear concentration range of 50 to 300 ppm H2S (r = 0.9777). The theoretical limit of detection was found at 0.142 ppm or 142 ppb H2S gas. The sensor provided a stable response reading at an average response time of 43±5 seconds, which was easily recovered after an average time of 99±5 seconds. The sensor response was highly repeatable and reversible with RSD values of 8.88%, and 8.60%, respectively. Compared with the performance of the conventional conducting polyaniline also doped with gold nanoparticles (PANI/AuNPs), the fabricated electroactive PI/AuNPs exhibited improved sensing performance making it a potential candidate in monitoring H2S in the environment and for work-related safety.

show abstract

Characteristics of H2S emission from aged refuse after excavation exposure

Cited by 9 publications

References 29 publications

Development of whole-cell catalyst system for sulfide biotreatment based on the engineered haloalkaliphilic bacterium

Development of whole-cell catalyst system for sulfide biotreatment based on the engineered haloalkaliphilic bacterium

A Novel Application of Electroactive Polyimide Doped with Gold Nanoparticles: As a Chemiresistor Sensor for Hydrogen Sulfide Gas

A Novel Application of Electroactive Polyimide Doped with Gold Nanoparticles: As a Chemiresistor Sensor for Hydrogen Sulfide Gas

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