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Mercury removal from flue gas using nitrate as an electron acceptor in a membrane biofilm reactor

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1454-y

Abstract:

Membrane bioreactor achieved mercury removal using nitrate as an electron acceptor.

Keywords： Mercury removal     Oxygen     Ferrous sulfide     Transformation of mercury     Microbial community    

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extracellular polymeric substances from activated sludge on the aggregation kinetics of silver and silver sulfide

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1450-2

Abstract:

• The NPs aggregation in the electrolyte solution is consistent with the DLVO theory.

Keywords： Silver nanoparticles     Silver sulfide nanoparticles     Extracellular polymeric substances     Aggregation kinetics    

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Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 1,   Pages 34-63 doi: 10.1007/s11705-021-2050-1

Abstract: groups: H2S reducibility-based probes, H2S nucleophilicity-based probes, and metal sulfide

Keywords： hydrogen sulfide     fluorescent probe     reducibility     nucleophilicity     copper sulfide precipitate     hydrogen    

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Control of hydrogen sulfide emissions using autotrophic denitrification landfill biocovers: engineering

Daoroong SUNGTHONG, Debra R. REINHART

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 2,   Pages 149-158 doi: 10.1007/s11783-011-0324-4

Abstract: Hydrogen sulfide (H S) emitted from construction and demolition waste landfills has received increasing

Keywords： hydrogen sulfide emissions     construction and demolition waste     autotrophic denitrification     landfill biocovers    

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Removal of nitric oxide from simulated flue gas using aqueous persulfate with activation of ferrous ethylenediaminetetraacetate

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 4,   Pages 460-469 doi: 10.1007/s11705-022-2224-5

Abstract: ) by aqueous persulfate ((NH4)2S2O8) activated by ferrous

Keywords： rotating packed bed     Fe2+-EDTA     sulfate radical     hydroxyl radical     NO removal efficiency    

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Therapeutic application of hydrogen sulfide donors: the potential and challenges

Dan Wu,Qingxun Hu,Yizhun Zhu

Frontiers of Medicine 2016, Volume 10, Issue 1,   Pages 18-27 doi: 10.1007/s11684-015-0427-6

Abstract:

Hydrogen sulfide (H2S), a colorless gas smelling of rotten egg, has long been considered

Keywords： hydrogen sulfide     cardiovascular     cancer     hypertension    

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Ozone kinetics of dimethyl sulfide in the presence of water vapor

Haitao WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 833-835 doi: 10.1007/s11783-013-0570-8

Abstract: chamber was used to thorough investigate the rate constants of gas-phase reaction between dimethyl sulfide

Keywords： rate constants     ozone (O3)     dimethyl sulfide (DMS)     water vapor    

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Abatement of sulfide generation in sewage by glutaraldehyde supplementation and the impact on the activated

Lehua ZHANG,Jingxing MA,Yinchen JIN,Haiqin ZHANG,Yongdi LIU,Lankun Cai

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 365-370 doi: 10.1007/s11783-014-0645-1

Abstract: Hydrogen sulfide emission in sewer systems is associated with toxicity, corrosion, odour nuisance andIn this study, a novel method to inhibit sulfide generation from sewage by means of glutaraldehyde supplementationexperimental results, a dosage of 20 mg·L glutaraldehyde resulted in a significant decrease of the sulfidecommercial glutaraldehyde products required in the operation, which was calculated on the basis of activated sulfideTherefore it is suggested that glutaraldehyde supplementation is a feasible technique to abate the sulfide

Keywords： corrosion     glutaraldehyde     sulfate-reducing bacteria     sulfide     urban sewage    

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Enhanced carbon tetrachloride degradation by hydroxylamine in ferrous ion activated calcium peroxide

Wenchao Jiang, Ping Tang, Zhen Liu, Huan He, Qian Sui, Shuguang Lyu

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1197-1

Abstract: Complete CT degradation was achieved by employing HA to CP/Fe(II)/FA process. Quantitative detection of Fe(II) regeneration and HO• production was investigated. Benzoic acid outcompeted FA for the reaction with HO•. CO2•− was the dominant reductive radical for CT removal. Effects of solution matrix on CT removal were conducted. Hydroxyl radicals (HO•) show low reactivity with perchlorinated hydrocarbons, such as carbon tetrachloride (CT), in conventional Fenton reactions, therefore, the generation of reductive radicals has attracted increasing attention. This study investigated the enhancement of CT degradation by the synergistic effects of hydroxylamine (HA) and formic acid (FA) (initial [CT] = 0.13 mmol/L) in a Fe(II) activated calcium peroxide (CP) Fenton process. CT degradation increased from 56.6% to 99.9% with the addition of 0.78 mmol/L HA to the CP/Fe(II)/FA/CT process in a molar ratio of 12/6/12/1. The results also showed that the presence of HA enhanced the regeneration of Fe(II) from Fe(III), and the production of HO• increased one-fold when employing benzoic acid as the HO• probe. Additionally, FA slightly improves the production of HO•. A study of the mechanism confirmed that the carbon dioxide radical (CO2•−), a strong reductant generated by the reaction between FA and HO•, was the dominant radical responsible for CT degradation. Almost complete CT dechlorination was achieved in the process. The presence of humic acid and chloride ion slightly decreased CT removal, while high doses of bicarbonate and high pH inhibited CT degradation. This study helps us to better understand the synergistic roles of FA and HA for HO• and CO2•− generation and the removal of perchlorinated hydrocarbons in modified Fenton systems.

Keywords： Calcium peroxide     Hydroxylamine     Modified Fenton     Reactive oxygen species     Perchlorinated hydrocarbon    

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New method for efficient control of hydrogen sulfide and methane in gravity sewers: Combination of NaOH

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-021-1509-0

Abstract:

• The combination of NaOH and nitrite was used to control harmful gas in sewers.

Keywords： Sewer corrosion     Sulfide control     Combination treatment     NaOH     Nitrite    

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Structural and optical properties of nanostructured copper sulfide semiconductor synthesized in an industrial

Marcela Achimovičová, Erika Dutková, Erika Tóthová, Zdenka Bujňáková, Jaroslav Briančin, Satoshi Kitazono

Frontiers of Chemical Science and Engineering 2019, Volume 13, Issue 1,   Pages 164-170 doi: 10.1007/s11705-018-1755-2

Abstract:

Chalcogenide nanostructured semiconductor, copper sulfide (CuS) was prepared from copper and sulfur

Keywords： copper sulfide     industrial mechanochemical synthesis     thermal analysis     optical properties    

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Research on Development Situation of Ferrous Metal Resources in China

Task Group for the Strategic Research on Great Power of Ferrous Metal Mineral Resources

Strategic Study of CAE 2019, Volume 21, Issue 1,   Pages 97-103 doi: 10.15302/J-SSCAE-2019.01.014

Abstract:

 As a forerunner of the supply-side structure reform, China’s iron and steel industry actively resolves its overcapacity. More than 1.2×108 t of excessive steel production capacity has been resolved between 2016 and 2017, and 1.4×108 t of illegal production capacity, such as “substandard steel” has been eliminated. As the global iron and steel industry is currently in the excess production capacity cycle, China's steel consumption has developed from a sustained growth phase to a peak value platform area. Meanwhile, both the crude steel consumption intensity per unit GDP and that per unit investment has decreased. It is expected that the consumption demand and output of crude steel in China will reach 6×108-6.5×108 t and 6.5×108-7.0×108 t by 2025, respectively; and these same items will reach 5.3×108-6.0×108 t and 5.9×108-6.5×108 t by 2030, respectively. Meanwhile, the supply of steel scrap resources in China will increase rapidly, and the sufficient steel scrap resources will become a strong support for China’s iron and steel industry. The structure of iron resources will also be greatly changed, and the demand for international iron ore resources will decrease gradually. All the changes are important in promoting ecological civilization construction and green development.

Keywords： iron and steel     steel scrap     iron ore     peak value platform area    

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Removing carbonyl sulfide with metal-modified activated carbon

Juan QIU,Ping NING,Xueqian WANG,Kai LI,Wei LIU,Wei CHEN,Langlang WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 11-18 doi: 10.1007/s11783-014-0714-5

Abstract: A Cu-Co-K/activated carbon (AC) adsorbent has been developed for the removal of carbonyl sulfide (COS

Keywords： carbonyl sulfide     activated carbon     removal     reactive adsorption    

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Preparation, characterization of sludge adsorbent and investigations on its removal of hydrogen sulfide

Fen LI,Tao LEI,Yanping ZHANG,Jinzhi WEI,Ying YANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 2,   Pages 190-196 doi: 10.1007/s11783-014-0628-2

Abstract: To recycle the sludge resource from sewage treatment plants and solve the problem of odor pollution, the sludge was converted into an adsorbent by carbonized pyrolysis and the process was optimized by orthogonal experiments. The capability for odor removal as well as the structure of the adsorbent was studied with H S as a target pollutant. The results indicate that the main factor affecting the deodorization performance of the adsorbent is the activating time. The sludge adsorbent sample SAC1 prepared under optimum conditions exhibits the best deodorization performance with a H S breakthrough time of 58 min and an iodine value nearly that of the coal activated carbon. The breakthrough time of H S is much longer than that on the coal activated carbon. On the other hand, characterization results from X-ray diffractometer (XRD), X-ray photoelectron spectrometer (XPS) and scanning electron microscope (SEM) techniques show that SAC1 is composed of mainly graphite carbon with lower oxygen content on the surface. The bulk of SAC1 exhibits a honeycomb structure with well developed porosity and a high specific surface area of 120.47 m ·g , with the average pore diameter being about 5 nm. Such a structure is in favor of H S adsorption. Moreover, SAC1 is detected to contain various metal elements such as Zn, Fe, Mg, etc., leading to a superior deodorization property to that of coal activated carbon.

Keywords： orthogonal experiment     sludge adsorbent     hydrogen sulfide    

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Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient

Frontiers of Chemical Science and Engineering 2021, Volume 15, Issue 6,   Pages 1487-1499 doi: 10.1007/s11705-021-2085-3

Abstract: Developing cost-effective electrocatalysts for oxygen reduction reaction (ORR), oxygen evolution reaction (OER) and hydrogen evolution reaction (HER) is vital in energy conversion and storage applications. Herein, we report a simple method for the synthesis of graphene-reinforced CoS/C nanocomposites and the evaluation of their electrocatalytic performance for typical electrocatalytic reactions. Nanocomposites of CoS embedded in N, S co-doped porous carbon and graphene (CoS@C/Graphene) were generated via simultaneous sulfurization and carbonization of one-pot synthesized graphite oxide-ZIF-67 precursors. The obtained CoS@C/Graphene nanocomposites were characterized by X-ray diffraction, Raman spectroscopy, thermogravimetric analysis-mass spectroscopy, scanning electronic microscopy, transmission electronic microscopy, X-ray photoelectron spectroscopy and gas sorption. It is found that CoS nanoparticles homogenously dispersed in the in situ formed N, S co-doped porous carbon/graphene matrix. The CoS@C/10Graphene composite not only shows excellent electrocatalytic activity toward ORR with high onset potential of 0.89 V, four-electron pathway and superior durability of maintaining 98% of current after continuously running for around 5 h, but also exhibits good performance for OER and HER, due to the improved electrical conductivity, increased catalytic active sites and connectivity between the electrocatalytic active CoS and the carbon matrix. This work offers a new approach for the development of novel multifunctional nanocomposites for the next generation of energy conversion and storage applications.

Keywords： MOF derivative     graphene     electrocatalyst     oxygen reduction reaction     oxygen evolution reaction     hydrogen evolution reaction    

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Title Author Date Type Operation

Mercury removal from flue gas using nitrate as an electron acceptor in a membrane biofilm reactor

Journal Article

extracellular polymeric substances from activated sludge on the aggregation kinetics of silver and silver sulfide

Journal Article

Recent advances of small-molecule fluorescent probes for detecting biological hydrogen sulfide

Journal Article

Control of hydrogen sulfide emissions using autotrophic denitrification landfill biocovers: engineering

Daoroong SUNGTHONG, Debra R. REINHART

Journal Article

Removal of nitric oxide from simulated flue gas using aqueous persulfate with activation of ferrous ethylenediaminetetraacetate

Journal Article

Therapeutic application of hydrogen sulfide donors: the potential and challenges

Dan Wu,Qingxun Hu,Yizhun Zhu

Journal Article

Ozone kinetics of dimethyl sulfide in the presence of water vapor

Haitao WANG

Journal Article

Abatement of sulfide generation in sewage by glutaraldehyde supplementation and the impact on the activated

Lehua ZHANG,Jingxing MA,Yinchen JIN,Haiqin ZHANG,Yongdi LIU,Lankun Cai

Journal Article

Enhanced carbon tetrachloride degradation by hydroxylamine in ferrous ion activated calcium peroxide

Wenchao Jiang, Ping Tang, Zhen Liu, Huan He, Qian Sui, Shuguang Lyu

Journal Article

New method for efficient control of hydrogen sulfide and methane in gravity sewers: Combination of NaOH

Journal Article

Structural and optical properties of nanostructured copper sulfide semiconductor synthesized in an industrial

Marcela Achimovičová, Erika Dutková, Erika Tóthová, Zdenka Bujňáková, Jaroslav Briančin, Satoshi Kitazono

Journal Article

Research on Development Situation of Ferrous Metal Resources in China

Task Group for the Strategic Research on Great Power of Ferrous Metal Mineral Resources

Journal Article

Removing carbonyl sulfide with metal-modified activated carbon

Juan QIU,Ping NING,Xueqian WANG,Kai LI,Wei LIU,Wei CHEN,Langlang WANG

Journal Article

Preparation, characterization of sludge adsorbent and investigations on its removal of hydrogen sulfide

Fen LI,Tao LEI,Yanping ZHANG,Jinzhi WEI,Ying YANG

Journal Article

Graphene-reinforced metal-organic frameworks derived cobalt sulfide/carbon nanocomposites as efficient

Journal Article