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Speciation evolutions of target metals (Cd, Pb) influenced by chlorine and sulfur during sewage sludge

Jingde LUAN,Rundong LI,Zhihui ZHANG,Yanlong LI,Yun ZHAO

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 6,   Pages 871-876 doi: 10.1007/s11783-013-0621-1

Abstract: work, the combined analysis of metal partitioning behavior between vapor phase and condensed phase, speciationredistribution in condensed phase and the difference of metal species in binding energy was carriedWith the increase of chlorine and sulfur in sludge, the inner speciation redistribution of heavy metals

Keywords： sludge incineration     heavy metals     inner speciation redistribution     binding energy    

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Effects of sulfur on variations in the chemical speciation of heavy metals from fly ash glass

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1728-7

Abstract:

● A higher sulfur content reduced the curing rate of Cr in glass.

Keywords： Dechlorinated fly ash     SO3     Heavy metal     Chemical speciation     Glass solidification    

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Effect of lime on speciation of heavy metals during composting of water hyacinth

Jiwan SINGH,Ajay S. KALAMDHAD

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 1,   Pages 93-102 doi: 10.1007/s11783-014-0704-7

Abstract: cattle manure and sawdust (6:3:1 ratio) and effects of addition of lime (1%, 2% and 3%) on heavy metal speciationThe Tessier sequential extraction method was employed to investigate the changes in speciation of heavyEffects of physicochemical parameters such as temperature, pH and organic matter on speciation of heavy

Keywords： composting     lime     heavy metals     bioavailability factor     speciation    

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Effects of inner sleeves on the inner frictional resistance of open-ended piles driven into sand

Janaka J. KUMARA,Yoshiaki KIKUCHI,Takashi KURASHINA,Takahiro YAJIMA

Frontiers of Structural and Civil Engineering 2016, Volume 10, Issue 4,   Pages 499-505 doi: 10.1007/s11709-016-0335-0

Abstract: In open-ended piles, inner friction is developed between inner pile shaft and the inner soil.Inner frictional resistance depends largely on the degree of soil plugging, which is influenced by manyIn this paper, effects of inner sleeves on inner frictional resistance are discussed.The results suggest that inner frictional resistance, increases with sleeve height, linearly and

Keywords： bearing capacity     inner frictional resistance     inner sleeve     open-ended piles     soil plugging    

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Alternative splicing of inner-ear-expressed genes

Yanfei Wang,Yueyue Liu,Hongyun Nie,Xin Ma,Zhigang Xu

Frontiers of Medicine 2016, Volume 10, Issue 3,   Pages 250-257 doi: 10.1007/s11684-016-0454-y

Abstract: >Alternative splicing plays a fundamental role in the development and physiological function of the innerInner-ear-specific gene splicing is necessary to establish the identity and maintain the function ofthe inner ear.For example, exon 68 of Cadherin 23 (Cdh23) gene is subject to inner-ear-specific alternativesplicing, and as a result, Cdh23(+68) is only expressed in inner ear hair cells.

Keywords： alternative splicing     inner ear     hearing loss     hair cells    

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Multiphase redistribution differences of polycyclic aromatic hydrocarbons (PAHs) between two successive

Rufeng LI,Chenghong FENG,Dongxin WANG,Baohua LI,Zhenyao SHEN

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 2,   Pages 381-389 doi: 10.1007/s11783-015-0817-7

Abstract: Successive sediment suspensions often happen in estuary, yet little research has probed into the difference in the release behaviors of organic compounds among different suspensions. This study took polycyclic aromatic hydrocarbons (PAHs) as typical organic contaminants and investigated the release behaviors between two successive suspensions with a particle entrainment simulator (PES). Results showed that successive sediment suspensions lowered the concentration of dissolved PAHs in the overlying water via facilitating the re-adsorption of dissolved PAHs onto the suspended particles. Fast-release and slow-release periods of PAHs were successively observed in the both suspensions. The concentration changes of dissolved PAHs in the second suspension were generally similar with but hysteretic to those in the first suspension. More vigorous desorption and re-absorption of PAHs were induced in the second suspension. Successive sediment suspensions obviously decreased the concentrations of mineral composition and organic matters in the overlying water, which significantly affects multiphase distribution of PAHs.

Keywords： sediment suspension     PAHs     multiphase distribution     distribution coefficients    

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Trends of chemical speciation profiles of anthropogenic volatile organic compounds emissions in China

Wei WEI, Shuxiao WANG, Jiming HAO, Shuiyuan CHENG

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 1,   Pages 27-41 doi: 10.1007/s11783-012-0461-4

Abstract: Large discrepancies are found in VOCs speciation emissions among provinces.

Keywords： volatile organic compounds (VOCs)     chemical speciation     ozone formation     Photochemical Ozone Creation Potential    

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Driving mechanisms of desertification process in the Horqin Sandy Land-a case study in Zhalute Banner, Inner

TANG Haiping, CHEN Yufu, LI Xinyu

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 4,   Pages 487-493 doi: 10.1007/s11783-008-0061-5

Abstract: were examined to understand the driving mechanisms of the desertification process in Zhalute Banner, Inner
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Comparison of masking agents for antimony speciation analysis using hydride generation atomic fluorescence

Jianhong XI,Mengchang HE,Kunpeng WANG,Guizhi ZHANG

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 6,   Pages 970-978 doi: 10.1007/s11783-014-0716-3

Abstract: A sensitive atomic spectrometric method for the redox speciation analysis of Sb in water is described

Keywords： Sb(III)     Sb(V)     determination     masking agents     hydride generation (HG-AFS)    

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Chemical speciation and anthropogenic sources of ambient volatile organic compounds (VOCs) during summer

LU Sihua, LIU Ying, SHAO Min, HUANG Shan

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 2,   Pages 147-152 doi: 10.1007/s11783-007-0026-0

Abstract: Volatile organic compounds (VOCs) were measured at six sites in Beijing in August, 2004. Up to 148 VOC species, including C to C alkanes, C to C alkenes, C to C aromatics, and halogenated hydrocarbons, were quantified. Although the concentrations differed at the sites, the chemical compositions were similar, except for the Tongzhou site where aromatics were significantly high in the air. Based on the source profiles measured from previous studies, the source apportionment of ambient VOCs was preformed by deploying the chemical mass balance (CMB) model. The results show that urban VOCs are predominant from mobile source emissions, which contribute more than 50% of the VOCs (in mass concentrations) to ambient air at most sites. Other important sources are gasoline evaporation, painting, and solvents. The exception is at the Tongzhou site where vehicle exhaust, painting, and solvents have about equal contribution, around 35% of the ambient VOC concentration. As the receptor model is not valid for deriving the sources of reactive species, such as isoprene and 1,3-butadiene, other methodologies need to be further explored.

Keywords： Beijing     exception     gasoline evaporation     August     exhaust    

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The speciation, leachability and bioaccessibility of Cu and Zn in animal manure-derived biochar: effect

Qi Lin, Xin Xu, Lihua, Wang, Qian Chen, Jing Fang, Xiaodong Shen, Liping Lou, Guangming Tian

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 3, doi: 10.1007/s11783-017-0924-8

Abstract: poultry and swine manure-derived biochars (denoted PB and SB, respectively) to evaluate the variance of speciationThe results showed that Cu speciation was dependent on the feedstock with Cu-citrate-like in swine manurePyrolyzed products, however, had similar Cu speciation mainly with species resembling Cu-citrate, CuO

Keywords： Animal manure     Biochar     Metals     Molecular species     Pyrolysis    

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Characteristics and Influencing Factors of Microplastics in Snow in the Inner Mongolia Plateau, China

Hongwei Yu,Junrong Shao,Huawei Jia,Diga Gang,Baiwen Ma,Chengzhi Hu,

Engineering doi: 10.1016/j.eng.2023.02.007

Abstract: MPs collected from surface snow in the Inner Mongolia Plateau, China, were used for quantitative analysis

Keywords： Human activities     Snow     Microplastics     Microbial community     Urban function     Environmental effect    

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Spatiotemporal expression of Ezh2 in the developing mouse cochlear sensory epithelium

Yan Chen,Wenyan Li,Wen Li,Renjie Chai,Huawei Li

Frontiers of Medicine 2016, Volume 10, Issue 3,   Pages 330-335 doi: 10.1007/s11684-016-0459-6

Abstract: in the nuclei of the cochlear epithelium in all three turns and could be clearly seen in outer and inner

Keywords： polycomb repressive complex     Ezh2     expression     inner ear     cochlea     development    

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Optimization and simultaneous heat integration design of a coal-based ethylene glycol refining process by a parallel differential evolution algorithm

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 9,   Pages 1280-1288 doi: 10.1007/s11705-023-2301-4

Abstract: To mitigate the influence of the strong nonconvexity, a redistribution strategy is adopted that forcibly

Keywords： ethylene glycol     redistribution     heat integration     optimization     parallel framework    

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Recycling from Waste Light-Emitting Diode Under Hydrothermal Condition: Plastic Package Degradation, Speciation

Yongliang Zhang,Lu Zhan,Zhenming Xu,

Engineering doi: 10.1016/j.eng.2023.04.008

Abstract: Light emitting diodes (LEDs) have accounted for most of the lighting market as the technology matures and costs continue to reduce. As a new type of e-waste, LED is a double-edged sword, as it contains not only precious and rare metals but also organic packaging materials. In previous studies, LED recycling focused on recovering precious and strategic metals while ignoring harmful substances such as organic packaging materials. Unlike crushing and other traditional methods, hydrothermal treatment can provide an environment-friendly process for decomposing packaging materials. This work developed a closed reaction vessel, where the degradation rate of plastic polyphthalamide (PPA) was close to 100%, with nano-TiO2 encapsulated in plastic PPA being efficiently recovered, while metals contained in LED were also recycled efficiently. Besides, the role of water in plastic PPA degradation that has been overlooked in current studies was explored and speculated in detail in this work. Environmental impact assessment revealed that the proposed recycling route for waste LED could significantly reduce the overall environmental impact compared to the currently published processes. Especially the developed method could reduce more than half the impact of global warming. Furthermore, this research provides a theoretical basis and a promising method for recycling other plastic-packaged e-waste devices, such as integrated circuits.

Keywords： Waste LED     Hydrothermal treatment     Recycling     Plastic PPA degradation     Packaging materials    

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Title Author Date Type Operation

Speciation evolutions of target metals (Cd, Pb) influenced by chlorine and sulfur during sewage sludge

Jingde LUAN,Rundong LI,Zhihui ZHANG,Yanlong LI,Yun ZHAO

Journal Article

Effects of sulfur on variations in the chemical speciation of heavy metals from fly ash glass

Journal Article

Effect of lime on speciation of heavy metals during composting of water hyacinth

Jiwan SINGH,Ajay S. KALAMDHAD

Journal Article

Effects of inner sleeves on the inner frictional resistance of open-ended piles driven into sand

Janaka J. KUMARA,Yoshiaki KIKUCHI,Takashi KURASHINA,Takahiro YAJIMA

Journal Article

Alternative splicing of inner-ear-expressed genes

Yanfei Wang,Yueyue Liu,Hongyun Nie,Xin Ma,Zhigang Xu

Journal Article

Multiphase redistribution differences of polycyclic aromatic hydrocarbons (PAHs) between two successive

Rufeng LI,Chenghong FENG,Dongxin WANG,Baohua LI,Zhenyao SHEN

Journal Article

Trends of chemical speciation profiles of anthropogenic volatile organic compounds emissions in China

Wei WEI, Shuxiao WANG, Jiming HAO, Shuiyuan CHENG

Journal Article

Driving mechanisms of desertification process in the Horqin Sandy Land-a case study in Zhalute Banner, Inner

TANG Haiping, CHEN Yufu, LI Xinyu

Journal Article

Comparison of masking agents for antimony speciation analysis using hydride generation atomic fluorescence

Jianhong XI,Mengchang HE,Kunpeng WANG,Guizhi ZHANG

Journal Article

Chemical speciation and anthropogenic sources of ambient volatile organic compounds (VOCs) during summer

LU Sihua, LIU Ying, SHAO Min, HUANG Shan

Journal Article

The speciation, leachability and bioaccessibility of Cu and Zn in animal manure-derived biochar: effect

Qi Lin, Xin Xu, Lihua, Wang, Qian Chen, Jing Fang, Xiaodong Shen, Liping Lou, Guangming Tian

Journal Article

Characteristics and Influencing Factors of Microplastics in Snow in the Inner Mongolia Plateau, China

Hongwei Yu,Junrong Shao,Huawei Jia,Diga Gang,Baiwen Ma,Chengzhi Hu,

Journal Article

Spatiotemporal expression of Ezh2 in the developing mouse cochlear sensory epithelium

Yan Chen,Wenyan Li,Wen Li,Renjie Chai,Huawei Li

Journal Article

Optimization and simultaneous heat integration design of a coal-based ethylene glycol refining process by a parallel differential evolution algorithm

Journal Article

Recycling from Waste Light-Emitting Diode Under Hydrothermal Condition: Plastic Package Degradation, Speciation

Yongliang Zhang,Lu Zhan,Zhenming Xu,

Journal Article