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| 1 | Removal kinetics of phosphorus from synthetic wastewater using basic oxygen furnace slag显示文摘Removal kinetics of phosphorus through use of basic oxygen furnace slag(BOF-slag)was investigated through batch experiments. Effects of several parameters such as initial phosphorus concentration, temperature, BOF-slag size, initial p H, and BOF-slag dosage on phosphorus removal kinetics were measured in detail. It was demonstrated that the removal process of phosphorus through BOF-slag followed pseudo-first-order reaction kinetics. The apparent rate constant(kobs) significantly decreased with increasing initial phosphorus concentration, BOF-slag size, and initial p H, whereas it exhibited an opposite trend with increasing reaction temperature and BOF-slag dosage.A linear dependence of kobson total removed phosphorus(TRP) was established with kobs=(3.51 ± 0.11) × 10- 4× TRP. Finally, it was suggested that the Langmuir–Rideal(L–R)or Langmuir–Hinshelwood(L–H) mechanism may be used to describe the removal process of phosphorus using BOF-slag. | Chong Han Zhen Wang He Yang Xiangxin Xue | 2015 | Journal of Environmental Sciences2015，27，4： | 6 |
| 2 | Genesis and Implications of the Composition and Sedimentary Structure of Fine-Grained Carbonate Rocks in the Shulu Sag显示文摘Fine-grained carbonate rocks, which extensively occur in the Eocene strata in the Shulu sag, Bohai Bay Basin, North China, represent an unconventional, fine-grained carbonate reservoir. However, previous studies have ignored the complexity of the lithofacies components and their formation mechanisms. Fine-grained carbonate rocks are typical reservoirs in which hydrocarbons form and gather. A better understanding of the nature of these rocks is extremely important for evaluating the quality of unconventional, fine-grained carbonate reservoirs. Various lithofacies components were discriminated in this study with a combination of petrographic observations and carbon isotope analyses. These finegrained carbonate rocks comprise terrigenous, biogenic and diagenetic materials. Terrigenous input and biologically induced precipitation are the main sources of the materials in the lake. Five lithofacies were identified based on the observations of sedimentary features(core and thin section) and mineralogical data:(1) varve-like laminated calcilutite,(2) graded laminated calcilutite,(3) interlaminated calcisiltitecalcilutite,(4) massive calcilutite, and(5) massive calcisiltite-calcarenite. Their origins were recorded by various lithofacies components, which are controlled by the interactions of physical, chemical and biological processes. This study indicated that the lithology of the bedrocks was the key factor controlling carbonate accumulation. The tectonics and climate can influence the weathering and types of lithofacies. Primary productivity controlled the precipitation of the endogenic calcite. These factors jointly determined the abundant fine-grained carbonate rocks that have accumulated in the Shulu sag. | Xiangxin Kong Zaixing Jiang Chao Han Lijing Zheng Yiming Zhang Ruifeng Zhang Jianzhang Tian | 2017 | Journal of Earth Science2017，28，6： | 6 |
| 3 | Kinetics and mechanism of hexavalent chromium removal by basic oxygen furnace slag显示文摘Basic oxygen furnace slag(BOFS) has the potential to remove hexavalent chromium(Cr(VI))from wastewater by a redox process due to the presence of minerals containing Fe2+. The effects of the solution p H, initial Cr(VI) concentration, BOFS dosage, BOFS particle size, and temperature on the removal of Cr(VI) was investigated in detail through batch tests. The chemical and mineral compositions of fresh and reacted BOFS were characterized using scanning electron microscope(SEM) equipped with an energy dispersive spectrometer(EDS)system and X-ray diffractometer(XRD). The results show that Cr(VI) in wastewater can be efficiently removed by Fe2+released from BOFS under appropriate acidic conditions. The removal of Cr(VI) by BOFS significantly depended on the parameters mentioned above. The reaction of Cr(VI) with BOFS followed the pseudo-second-order kinetic model. Fe2+responsible for Cr(VI) removal was primarily derived from the dissolution of Fe O and Fe3O4 in BOFS. When H2SO4 was used to adjust the solution acidity, gypsum(Ca SO4·2H2O)could be formed and become an armoring precipitate layer on the BOFS surface, hindering the release of Fe2+and the removal of Cr(VI). Finally, the main mechanism of Cr(VI) removal by BOFS was described using several consecutive reaction steps. | Chong Han Yanan Jiao Qianqian Wu Wangjin Yang He Yang Xiangxin Xue | 2016 | Journal of Environmental Sciences2016，28，8： | 4 |
| 4 | Photocatalytic activity of Fe-doped CaTiO_3 under UV–visible light显示文摘The photocatalytic degradation of methylene blue(MB) over Fe-doped CaTiO3 under UV–visible light was investigated. The as-prepared samples were characterized using X-ray diffraction(XRD), scanning electron microscope(SEM) equipped with an energy dispersive spectrometer(EDS) system, Fourier transform infrared spectra(FT-IR), and UV–visible diffuse reflectance spectroscopy(DRS). The results show that the doping with Fe significantly promoted the light absorption ability of CaTiO3 in the visible light region. The Fe-doped CaTiO3 exhibited higher photocatalytic activity than CaTiO3 for the degradation of MB.However, the photocatalytic activity of the Fe-doped CaTiO3 was greatly influenced by the calcination temperature during the preparation process. The Fe-doped CaTiO3 prepared at500°C exhibited the best photocatalytic activity, with degradation of almost 100% MB(10 ppm)under UV–visible light for 180 min. | He Yang Chong Han Xiangxin Xue | 2014 | Journal of Environmental Sciences2014，26，7： | 2 |
| 5 | CombinedFluidized Bed Retorting and Circulating Fluidized BedCombustion System of Oil Shale显示文摘 | HAN Xiangxin LI Qingyou NIU Mengting | 2014 | Oil Shale2014，31，1： | 1 |
| 6 | Characterization of nitrogen-containing species in Huadian shale oil by electrospray i- onization Fourier transform ion cyclotron resonance mass spectrome- try显示文摘 | Tong Jianghui Liu Jianguo Han Xiangxin | 2013 | Fuel2013，104，： | 1 |
| 7 | A TG-FTIR investigation to the catalytic effect of mineral matrix in oil shale on the pyrolysis and combustion of Kerogen显示文摘 | YAN Junwei JIANG Xiumin HAN Xiangxin | 2013 | Fuel2013，104，5： | 1 |
| 8 | Investigation of Chinese oilshale resources comprehensive utilization performance显示文摘 | Wang Sha Jiang Xiumin Han Xiangxin | 2012 | Energy2012，42，1： | 1 |
| 9 | Re- view of oil shale semicoke and its combustion utilization 显示文摘 | HAN Xiangxin KULAOTS I JIANG Xiumin | 2014 | Fuel2014，126，15： | 1 |
| 10 | Characterization of nitrogen-containing species in Huadian shale oil by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry显示文摘 | Tong Jianhui Liu Jianguo Han Xiangxin | 2013 | Fuel2013，104，2： | 1 |
| 11 | Devolatilization of oil sludge in a lab-scale bubbling fluidized bed显示文摘 | Jianguo Liu Xiumin Jiang Xiangxin Han | 2010 | Journal of Hazardous Materials2010，，2： | 1 |
| 12 | A TG-FTIR investigation to the catalytic effect of mineral matrix in oil shale on the pyrolysis and combustion of kerogen显示文摘 | Yan Junwei Jiang Xiumin Han Xiangxin Liu Jianguo | 2013 | Fuel2013，，104： | 1 |
| 13 | Characterization of Dachengzi Oil Shale Fast Pyrolysis By Curie-Point Py- rolysis-GC-MS显示文摘 | HUANG Yiru HAN Xiangxin JlANG Xiumin | 2015 | Oil Shale2015，32，2： | 1 |
| 14 | Combined Flu- idized Bed Retorting and Circulating Fluidized Bed Com- bustion System of Oil Shale显示文摘 | HAN Xiangxin LI Qingyou Niu Mengting | 2014 | Oil Shale2014，31，1： | 1 |
| 15 | Investigation of Chinese oil shale resources comprehensive utilization performance显示文摘 | Sha Wang Xiumin Jiang Xiangxin Han | 2012 | Energy2012，，42： | 1 |
| 16 | Characterization of nitrogen-containing species in Huadian shale oil by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry显示文摘 | Tong Jianghui Liu Jianguo Han Xiangxin | 2013 | Fuel2013，，104： | 1 |
| 17 | Pyrolysis treatment of oil sludge and model-free kinetics analysis显示文摘 | Jianguo Liu Xiumin Jiang Lingsheng Zhou Xiangxin Han Zhigang Cui | 2008 | Journal of Hazardous Materials2008，，2： | 1 |
| 18 | Evaluation of structural characteristics of Huadian oil shale kerogen using direct techniques (solid-state 13C NMR, XPS, FT-IR, and XRD) 显示文摘 | Tong Jianhui Han Xiangxin Wang Sha Jiang Xiumin | 2011 | Energy & Fuels2011，25，： | 1 |
| 19 | Combustion characteristics of fine- and micro-pulverized coal in the mixture of 02/{202 显示文摘 | Huang Xiangyong Jiang Xiumin Han Xiangxin | 2008 | Energy and Fuels2008，22，6： | 1 |
| 20 | Significant influences of TiO_(2)crystal structures on NO_(2)and HONO emissions from the nitrates photolysis显示文摘The emissions of NO_(2)and HONO from the KNO_(3)photolysis in the presence of TiO_(2)were measured using a round-shape reactor coupled to a NO_(x)analyzer.TiO_(2)played important roles in the emission flux density of NO_(2)(R_(NO_(2)))and HONO(R HONO),depending on crystal structures and mass ratios of TiO_(2).R NO_(2)and R HONO significantly decreased with increasing the rutile and anatase mass ratios from 0 to 8 and 0.5 wt.%,respectively.Nevertheless,with further increasing the anatase mass ratio to 8 wt.%,there was an increase in R_(NO_(2))and R HONO.R NO_(2)on KNO_(3)/TiO_(2)/SiO_(2)had positive correlation with the KNO_(3)mass(1–20 wt.%),irradiation intensity(80–400 W/m^(2))and temperature(278–308 K),while it had the maximum value at the relative humidity(RH)of 55%.R HONO on KNO_(3)/TiO_(2)/SiO_(2)slightly varied with the KNO_(3)mass and temperature,whereas it increased with the irradiation intensity and RH.In addition,the mechanism for NO_(2)and HONO emissions from the nitrates photolysis and atmospheric implications were discussed. | Wenwen Xu Wangjin Yang Chong Han He Yang Xiangxin Xue | 2021 | Journal of Environmental Sciences2021，33，4： | 0 |
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