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| 1 | Enhancement of municipal sludge dewaterability by electrochemical pretreatment显示文摘Electrolysis is a promising technology to improve sludge dewaterability efficiently with negligible environmental impact. To intensify the electrolytic efficiency, the effect of electrolytes(NaCl, Na_2SO_4, NaNO_3, and NaClO_4) on electrolysis pretreatment of municipal sludge and its mechanisms was investigated using Ti/PbO_2 electrodes. The electrolytes,which enhanced the production of oxidative radicals, showed a significant synergetic effect in reducing the capillary suction time(CST) of sludge. NaCl was distinguished from the other electrolytes since it formed a large amount of active chlorine species, which oxidized the sludge cells to improve the sludge dewaterability. The surface morphologies as well as the soluble proteins and polysaccharides were analyzed to unravel the underlying mechanisms of sludge dewaterability. Additionally, an economic assessment showed that NaCl addition in the electrolysis pretreatment can be a suitable technique for enhancing municipal sludge dewaterability. | Ke Xiao Jianping Deng Li Zeng Tao Guo Yan Gong Bo Yang Xu Zhao Huabo Duan | 2019 | Journal of Environmental Sciences2019，31，1： | 3 |
| 2 | Direct catalytic oxidation of benzene to phenol over metal-free graphene-based catalyst 显示文摘 | Yang Jinghe Sun Geng Gao Yongjun Zhao Huabo Tang Pei Tan Juan Lu Anhui Ma Ding | 2013 | Energy & Environmental Science2013，6，3： | 1 |
| 3 | Synthesis of Iron-Carbide Nanoparticles:Identification of the Active Phase and Mechanism of Fe-Based Fischer-Tropsch Synthesis显示文摘Despite the extensive study of the Fe-based Fischer-Tropsch synthesis(FTS)over the past 90 years,its active phases and reaction mechanisms are still unclear due to the coexistence of metals,oxides,and carbide phases presented under realistic FTS reaction conditions and the complex reaction network involving CO activation,C-C coupling,and methane formation.To address these issues,we successfully synthesized a range of pure-phase iron and iron-carbide nanoparticles(Fe,Fe_(5)C_(2),Fe_(3)C,and Fe_(7)C_(3))for the first time.By using them as the ideal model catalysts on high-pressure transient experiments,we identified unambiguously that all the iron carbides are catalytically active in the FTS reaction while Fe_(5)C_(2) is the most active yet stable carbide phase,consistent with density functional theory(DFT)calculation results.The reaction mechanism and kinetics of Fe-based FTS were further explored on the basis of those model catalysts by means of transient high-pressure stepwise temperature-programmed surface reaction(STPSR)experiments and DFT calculations.Our work provides new insights into the active phase of iron carbides and corresponding FTS reaction mechanism,which is essential for better iron-based catalyst design for FTS reactions. | Huabo Zhao Jin-Xun Liu Ce Yang Siyu Yao Hai-Yan Su Zirui Gao Mei Dong Junhu Wang Alexandre I.Rykov Jianguo Wang Yanglong Hou Wei-Xue Li Ding Ma | 2021 | CCS Chemistry2021，3，11： | 1 |
| 4 | Computational and experimental investigation of laminar flow mixing system in a pitched-blade turbine stirred tank显示文摘The flow distribution and mixing performance of the laminar flow in the PBT impeller-stirred tank were investigated in this study.The variation along with mixing time of the flow distribution and concentration at the selected positions was visualized by means of the CFD and experiment methods.The CFD simulations results had a good agreement with the experimental results.In order to minish the Segregated Regions,the PBT impeller was optimally designed by means of orthogonal factorial experiment with selecting theθ99 mixing time as evaluation criteria.With the aim to increase the mixing efficiency,the optimal design results were obtained with the geometrical parameters of impeller diameter of 0.084 m,discharge angle of 45º,blade width of 0.018 m,and clearance of 0.05 m,and the mixing time of the optimal impeller-stirred flow was about 180 s,so this optimal design PBT impeller is more proper for the agricultural industries. | Yanyan Cui Huabo Zhang Xiwen Li Mingjin Yang Zailin Guan | 2018 | International Journal of Agricultural and Biological Engineering2018，11，4： | 0 |
| 5 | Observation and analysis of whistler-mode wave and electrostatic solitary waves within density depletion near magnetic reconnection X-line显示文摘The PWI/WFC data onboard Geotail during one burst time interval when Geotail is skimming a magnetic reconnection diffusion region in the near-Earth magnetotail is carefully analyzed.Both the whistler-mode wave and the electrostatic solitary wave are found within the region with density depletion on the boundary layer near the magnetic reconnection X-line.The whistler-mode wave is electromagnetic whistler wave propagating quasi-parallel to the ambient field with a small angle between the wave vector and the ambient magnetic field.The whistler-mode wave associated with ESWs suggests that enhanced electromagnetic whistler-mode fluctuations can also be generated after the decay of the ESWs,which is different from the 2-D PIC simulation results. | LI ShiYou ZHANG ShiFeng CAI Hong DENG XiaoHua YANG HuaBo | 2014 | Science China(Physics,Mechanics & Astronomy)2014，57，4： | 0 |
| 6 | Categorification of Spin Modules of Enveloping Algebra of Lie Algebra of Type D_4显示文摘In this paper we give a categorification of the n-th tensor products of the spin modules of enveloping algebra of lie algebra of type D4 via some subcategories and projective functors of the BGG category of the general linear Lie algebra gln over the complex field C. | Huabo XU Shilin YANG | 2014 | Journal of Mathematical Research with Applications2014，34，6： | 0 |
| 7 | A potential threat from biodegradable microplastics: mechanism of cadmium adsorption and desorption in the simulated gastrointestinal environment显示文摘It has been demonstrated that microplastics (MPs) can accumulate heavy metals from the environment and transfer them into organisms via the food chain. However, adsorption and desorption capacities for biodegradable MPs relative to those for conventional MPs remain poorly understood. In this study, cadmium (Cd(II)) adsorption and desorption characteristics of polylactic acid (PLA), a typical biodegradable MP, were investigated. Two conventional MPs, i.e., polypropylene (PP) and polyamide (PA) were used for comparison. The maximum Cd(II) adsorption capacities of the MPs studied in the adsorption experiments decreased in the order PA (0.96 ± 0.07 mg/g) > PLA (0.64 ± 0.04 mg/g) > PP (0.22 ± 0.03 mg/g). The Pseudo-second-order kinetic model and Freundlich isothermal model described the Cd(II) adsorption behaviors of PLA MPs well. X-ray photoelectron spectroscopy and two-dimensional Fourier transform infrared correlation spectroscopy analysis indicated that oxygen functional groups were the major and preferential binding sites of PLA MPs, which contributed to their high Cd(II) adsorption capacities. Simulated gastric and intestinal fluids both significantly enhanced the desorption capacities of the examined MPs. Notably, degradation of the PLA MPs during in vitro human digestion made the Cd(II) on the PLA MPs more bioaccessible (19% in the gastric phase and 62% in the intestinal phase) than Cd(II) on the PP and PA MPs. These results indicate the remarkable capacities of biodegradable MPs to accumulate Cd(II) and transfer it to the digestive system and show that biodegradable MPs might pose more severe threats to human health than conventional nonbiodegradable MPs. | Timing Jiang Xiang Wu Shushan Yuan Changfei Lai Shijie Bian Wenbo Yu Sha Liang Jingping Hu Liang Huang Huabo Duan Yafei Shi Jiakuan Yang | 2024 | Frontiers of Environmental Science & Engineering2024，18，2： | 0 |
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