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Transferral of HMs pollution from road-deposited sediments to stormwater runoff during transport processes

Qian Wang, Qionghua Zhang, Mawuli Dzakpasu, Nini Chang, Xiaochang Wang

Frontiers of Environmental Science & Engineering 2019, Volume 13, Issue 1, doi: 10.1007/s11783-019-1091-x

Abstract:

Ratio of turbidity and TSS (Tur/TSS) was used to characterize PSD of stormwater particles.

Pb and Zn preferred to accumulate in finer RDS, while Cu, Cr and Ni in coarser RDS.

HMs pollution in stormwater particles increased linearly with Tur/TSS.

Dissolvability of HMs and PSD variations contribute to the differences between RDS and stormwater.

Keywords： Road-deposited sediment     Stormwater runoff     Heavy metal     Particle size     Pollution variation    

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ZnFe2O4 deposited on BiOCl with exposed (001) and (010) facets for photocatalytic

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

Frontiers of Chemical Science and Engineering 2017, Volume 11, Issue 2,   Pages 197-204 doi: 10.1007/s11705-016-1606-y

Abstract: ZnFe O -BiOCl composites were prepared by both hydrothermal and direct precipitation processes and the structures and properties of the samples were characterized by various instrumental techniques. The samples were then used as catalysts for the photocatalytic reduction of CO in cyclohexanol under ultraviolet irradiation to give cyclohexanone (CH) and cyclohexyl formate (CF). The photocatalytic CO reduction activities over the hydrothermally prepared ZnFe O -BiOCl composites were higher than those over the directly-precipitated composites. This is because compared to the direct-precipitation sample, the ZnFe O nanoparticles in the hydrothermal sample were smaller and more uniformly distributed on the surface of BiOCl and so more heterojunctions were formed. Higher CF and CH yields were obtained for the pure BiOCl and BiOCl composite samples with more exposed (001) facets than for the samples with more exposed (010) facets. This is due to the higher density of oxygen atoms in the exposed (001) facets, which creates more oxygen vacancies, and thereby improves the separation efficiency of the electron-hole pairs. More importantly, irradiation of the (001) facets with ultraviolet light produces photo-generated electrons which is helpful for the reduction of CO to ·CO . The mechanism for the photocatalytic reduction of CO in cyclohexanol over ZnFe O -BiOCl composites with exposed (001) facets involves electron transfer and carbon radical formation.

Keywords： reduction of CO2     cyclohexanol     ZnFe2O4 deposited BiOCl     facet     composite    

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Effects of previous drying of sediment on root functional traits and rhizoperformance of emerged macrophytes

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1427-1

Abstract:

• Sediment desiccation alters morphological characteristics of aquaticsediment.

Keywords： Fibrous-root macrophytes     Thick-root macrophytes     Nutrients removal     Wet sediment     Dried-rewetted sediment    

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Growth and properties analysis of metal-organic chemical vapor deposited MgZnO films on -AlO substrates

SHI Zengliang, LIU Dali, YAN Xiaolong, GAO Zhongmin, BAI Shiying

Frontiers of Mechanical Engineering 2008, Volume 3, Issue 3,   Pages 261-264 doi: 10.1007/s11465-008-0036-z

Abstract: MgZnO (0 < ? 0.12) thin films with the wurtzite structure have been successfully grown on -AlO substrates by metal-organic chemical vapor deposition (MOCVD). X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), photoluminescence (PL) spectrometry, and transmission measurements are performed to study the characteristics of MgZnO thin films. Results show that with increasing Mg content, the diffraction peak of MgZnO thin films shifts towards a higher diffraction angle (the biggest shift is 0.22°), and the full width at half maximum (FWHM) of the diffraction peak is broadened. Meanwhile, a blue-shift occurs at the near-band-edge (NBE) emission peak and the largest blue-shift of the band gap of the MgZnO films is 113 meV with Mg content = 0.12. Therefore, the energy band gap of the MgZnO films is determined by Mg content in the thin films and the energy band gap increases with an increase of Mg content.

Keywords： increase     photoelectron spectroscopy     transmission     wurtzite structure     MgZnO    

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Diversity and vertical distributions of sediment bacteria in an urban river contaminated by nutrients

Xunan YANG, Shan HUANG, Qunhe WU, Renduo ZHANG, Guangli LIU

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 851-859 doi: 10.1007/s11783-013-0569-1

Abstract: this study was to investigate the benthic bacterial communities in different depths of an urban river sedimentResults showed that concentrations of the nutrients and metals in this river sediment were higher thanFurthermore, high microbial richness and diversity appeared in the sediment.The diversity did not vary obviously in the whole sediment profile.The dominant bacterial OTUs ubiquitously existed in the deeper sediment layers (5–27 cm) corresponding

Keywords： heavy metals     nutrients     sediment profile     terminal restriction fragment length polymorphism    

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Microbial responses to the use of NaClO in sediment treatment

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1451-1

Abstract:

• Chlorine addition enhanced the release of TOC, TN from the sediment

Keywords： Sediment chlorination     Substance mobility     Microbial response     Community composition     Function    

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Can the Grain-for-Green Program Really Ensure a Low Sediment Load on the Chinese Loess Plateau? Article

Pengcheng Sun, Yiping Wu, Zhifeng Yang, Bellie Sivakumar, Linjing Qiu, Shuguang Liu, Yanpeng Cai

Engineering 2019, Volume 5, Issue 5,   Pages 855-864 doi: 10.1016/j.eng.2019.07.014

Abstract: Loess Plateau is the most seriously eroded area in the world and contributes the vast majority of the sedimentHowever, the mechanism
of the sediment transport dynamics is not fully understood due to multipleA challenging question, then, arises: Is the current low sediment level a "new normal" in thisfrom low discharge and a potential higher sediment load resulting from large discharge.of a large sediment load during extremely wet years.

Keywords： Discharge–sediment relationship     Ecological restoration     Loess hilly region     Sediment load     Sediment    

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Characteristics and application of road absorbing solar energy

Zhihua ZHOU, Shan HU, Xiaoyan ZHANG, Jian ZUO

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 525-534 doi: 10.1007/s11708-013-0278-2

Abstract: If the heat of road surface can be stored in summer, the road surface temperature will be decreased toA road-solar energy system was built in this study, and the heat transfer mechanism and effect of thesystem were analyzed according to the monitored solar radiant heat, the solar energy absorbed by roadThe temperature of the solar road surface was 3°C–6°C lower than that of the ordinary road surface.road.

Keywords： solar energy     road-solar energy system     road surface temperature     solar absorptivity of road surface     solar    

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Red soil for sediment capping to control the internal nutrient release under flow conditions

Lei Xia, Guo Liu, Chunmei Chen, Meiyan Wen, Yangyang Gao

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 6, doi: 10.1007/s11783-016-0886-2

Abstract: The inhibition of sediment nitrogen (N) and phosphorus (P) release seems necessary.Red soil (RS) was firstly used as sediment capping material under flow conditions.RS capping can effectively reduce the N and P release from sediment.Nitrogen (N) and phosphorus (P) released from the sediment to the surface water is a major source ofTherefore, inhibiting sediment nutrient release seems necessary.

Keywords： Sediment     Red soil capping     Flow conditions     Nitrogen     Phosphorus    

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Four kinds of capping materials for controlling phosphorus and nitrogen release from contaminated sediment

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 3, doi: 10.1007/s11783-021-1463-x

Abstract:

• Lanthanum modified bentonite (LMB) can effectively absorb phosphorus (P).

Keywords： Sediment     Eutrophication     Thin-layer capping     Phosphorus     Nitrogen     Aluminum-based P-inactivation agent    

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Development and road performance of clear asphalt with high transparency and adhesion

Frontiers of Structural and Civil Engineering 2023, Volume 17, Issue 2,   Pages 238-255 doi: 10.1007/s11709-022-0898-x

Abstract: Clear asphalt (CA) currently used in light-colored asphalt mixtures (LCAM) exhibits poor transparency and adhesion. Therefore, a highly transparent CA (HCA) modified using a silane coupling agent (KH550) was prepared. Furthermore, LCAM was prepared by mixing CA and limestone aggregates. The properties of the HCA and ordinary CA (OCA) were characterized using conventional asphalt tests, optical tests, pull-off tests, ultraviolet aging tests, dynamic shear rheometry, Fourier-transform infrared spectroscopy, differential scanning calorimetry, and scanning electron microscopy. Whereas Marshall, moisture resistance, wheel tracking, trabecular bending, and British pendulum tests were employed for the LCAM. The transmittance and spectral reflectance of the HCA were 123.30 and 3.74 times greater than those of the OCA, respectively. The complex modulus and viscosity-aging index of the HCA were 48% and 53% less than those of the OCA, respectively. After modification with KH550, the Marshall stability ratio, tensile strength ratio, and flexural strain of the HCA-prepared LCAM increased by 12.92%, 25.06%, and 23.90%, respectively. However, the rutting resistance of the HCA-prepared LCAM was 14.3% less than that of the OCA-prepared LCAM. The comprehensive performances of the HCA and HCA-prepared LCAM were 49.2% and 10.3% greater than those of the OCA and OCA-prepared LCAM, respectively, indicating a high application value in the future.

Keywords： light-colored asphalt pavement     orthogonal test     road performance     spectral reflectance     silane-coupling    

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Characterization of interaction between different adsorbents and copper by simulation experiments using sediment-extracted

Yan ZHANG,Yuan ZHANG,Tao YU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 510-518 doi: 10.1007/s11783-013-0588-y

Abstract: Cu was quantitatively studied by simulation experiments using different adsorbents prepared from the sedimentThe result indicated that the complex capacity was 0.048 mmol·g , 0.009 and 0.005 mmol·g for raw sediment, sediment without DOM, sediment without insoluble organic matters but with DOM and sediment withoutInsoluble organic matter played a major role in the sorption of Cu in sediment and it can adsorb mostwas 1.65, 1.78 and 2.25 times higher than that with water for adsorbents without OM, raw adsorbents (sediment

Keywords： interaction     dissolved organic matters     sediment     sorption     desorption     Taihu Lake    

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Special issue: Management of road and railway traffic and transportation engineering

Yongfu SUN, Ziyou GAO

Frontiers of Engineering Management 2017, Volume 4, Issue 4,   Pages 385-387 doi: 10.15302/J-FEM-2017110

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Effects of different sediment fractions on sorption of galaxolide

Lixia JIN, Mengchang HE, Jinghuan ZHANG

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 1,   Pages 59-65 doi: 10.1007/s11783-010-0259-1

Abstract: Among the different sediment fractions, the contribution of the 600°C heating fractions to the overall

Keywords： galaxolide (HHCB)     sorption     organic carbon     sediment     carbon-normalized distribution coefficient (   

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Research on Water and Sediment Regulation of the Yellow River under New Situation

Hu Chunhong, Zhang Shuanghu, Zhang Xiaoming

Strategic Study of CAE 2022, Volume 24, Issue 1,   Pages 122-130 doi: 10.15302/J-SSCAE-2022.01.013

Abstract:

Water and sediment regulation is critical for the long-term safety ofvariation characteristics of the amount of water and sediments from 1919 to 2020, predict the annual sedimentYellow River in the next 50 years, and systematically summarize the main problems regarding water and sedimentThree targeted strategies for water and sediment regulation under new conditions are proposed.The first is to perfect the water and sediment regulation engineering system with focus on the development

Keywords： Yellow River     new water and sediment conditions     water and sediment regulation     hydropower-complex project    

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Title Author Date Type Operation

Transferral of HMs pollution from road-deposited sediments to stormwater runoff during transport processes

Qian Wang, Qionghua Zhang, Mawuli Dzakpasu, Nini Chang, Xiaochang Wang

Journal Article

ZnFe2O4 deposited on BiOCl with exposed (001) and (010) facets for photocatalytic

Guixian Song, Xionggang Wu, Feng Xin, Xiaohong Yin

Journal Article

Effects of previous drying of sediment on root functional traits and rhizoperformance of emerged macrophytes

Journal Article

Growth and properties analysis of metal-organic chemical vapor deposited MgZnO films on -AlO substrates

SHI Zengliang, LIU Dali, YAN Xiaolong, GAO Zhongmin, BAI Shiying

Journal Article

Diversity and vertical distributions of sediment bacteria in an urban river contaminated by nutrients

Xunan YANG, Shan HUANG, Qunhe WU, Renduo ZHANG, Guangli LIU

Journal Article

Microbial responses to the use of NaClO in sediment treatment

Journal Article

Can the Grain-for-Green Program Really Ensure a Low Sediment Load on the Chinese Loess Plateau?

Pengcheng Sun, Yiping Wu, Zhifeng Yang, Bellie Sivakumar, Linjing Qiu, Shuguang Liu, Yanpeng Cai

Journal Article

Characteristics and application of road absorbing solar energy

Zhihua ZHOU, Shan HU, Xiaoyan ZHANG, Jian ZUO

Journal Article

Red soil for sediment capping to control the internal nutrient release under flow conditions

Lei Xia, Guo Liu, Chunmei Chen, Meiyan Wen, Yangyang Gao

Journal Article

Four kinds of capping materials for controlling phosphorus and nitrogen release from contaminated sediment

Journal Article

Development and road performance of clear asphalt with high transparency and adhesion

Journal Article

Characterization of interaction between different adsorbents and copper by simulation experiments using sediment-extracted

Yan ZHANG,Yuan ZHANG,Tao YU

Journal Article

Special issue: Management of road and railway traffic and transportation engineering

Yongfu SUN, Ziyou GAO

Journal Article

Effects of different sediment fractions on sorption of galaxolide

Lixia JIN, Mengchang HE, Jinghuan ZHANG

Journal Article

Research on Water and Sediment Regulation of the Yellow River under New Situation

Hu Chunhong, Zhang Shuanghu, Zhang Xiaoming

Journal Article