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Chinese Journal Of Geochemistry 2008年第3期27卷 299-305页

作者： LI Xun YANG Zeping zheng zhihong WU Hongmei College of Engineering andArchitecture Zhejiang University Hangzhou 310027 China East China Institute of Technology （ECIT） Fuzhou 344000 China

In order to know the mechanism of groundwater transport and the variation of ion concentrations in the near-field of the high-level radioactive waste repository,the whole process was simulated by EOS3 module of ***,the pH and cation concentrations vary obviously in the near-field saturated zone due to interaction between groundwater and ***,the simulated results showed that calcite precipitation could not cause obvious variations in the porosity of media in the near-filed if the chemical components and their concentrations of groundwater and bentonite pore water are similar to those used in this study.

关键词：液体饱和度地下水传输地质放射性废弃物

Impacts of Fe2+on 5-aminolevulinic acid(ALA)biosynthesis of Rhodobacter sphaeroides in wastewater treatment by regulating nif gene expression

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Journal of Environmental Sciences 2018年第8期30卷 11-19页

作者： Shuli Liu zhihong zheng Jingxi Tie Jia Kang Guangming Zhang Jie Zhang School of Environmental and Municipal Engineering North China University of Water Resources and Electric PowerZhengzhou 450000China Henan Key Laboratory of Water Environment Simulation and Treatment Zhengzhou 450046China Henan Engineering Research Center of Water Pollution and Soil Damage Remediation Zhengzhou 450046China School of Environment and Resource Renmin University of ChinaBeijing 100872China School of Municipal and Environmental Engineering Harbin Institute of TechnologyHarbin 150090China

This study aimed to increase bacterial growth and 5-aminolevulinic acid（ALA） biosynthesis of Rhodobacter sphaeroides in wastewater treatment through adding ferrous ion（ Fe2＋）. Results demonstrated that Fe2＋ effectively enhanced the biomass production and ALA yield of R. sphaeroides. Moreover, the optimal Fe2＋ dosage was found to be 400 μmol/L, which was associated with the highest biomass of 4015.3 mg/L and maximum ALA yield of 15.9 mg/g-dry cell weight（mg/g-DCW）. Mechanism analysis revealed that Fe2＋ vastly improved Adenosine Triphosphate（ATP） production by up-regulating the nif gene expression, and increasing ATP enhanced the biomass and ALA yield by supplying energy for bacterial growth and ALA biosynthesis, respectively. Correlation analysis showed that the ALA and ATP yields had positive relation with nifA and nifU gene expression. In addition, the nifA and nifU gene expression displayed high consistency of co-transcription at the optimal Fe2＋ dosage.

关键词： Ferrous ion 5-Aminolevulinic acid Rhodobacter sphaeroides ATP production nif genes Up-regulation

Anti-abrasion collagen fiber-based membrane functionalized by UiO-66-NH_(2)with ultra-high efficiency and stability for oil-in-water emulsions separation

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Chinese Journal of Chemical Engineering 2024年第2期66卷 285-297页

作者： Xiaoxia Ye Rixin Huang zhihong zheng Juan Liu Jie Chen Yuancai Lv College of Environmental and Safety Engineering Fuzhou UniversityFuzhou 350108China College of Chemical Engineering Fuzhou UniversityFuzhou 350108China

Membrane separation strategies offer promising platform for the emulsion ***,the low mechanical strength of membrane separation layers and the trade-off between separation flux and efficiency present significant *** this study,we report a CFM@UiO-66-NH_(2)membrane with high separation flux,efficiency and stability,through utilizing a robust anti-abrasion collagen fiber membrane(CFM)as the multifunctional support and UiO-66-NH_(2)by an in-situ growth as the separation *** high mechanical strength of the CFM compensated for the weakness of the separation layer,while the charge-breaking effect of UiO-66-NH_(2),along with the size sieving of its constituent separating layers and the capillary effect of the collagen fibers,contributed to the potential for efficient ***,the CFM@UiO-66-NH_(2)membrane exhibited superhydrophilic properties,making it suitable for separating oil-in-water microemulsions and nanoemulsions stabilized by anionic *** membrane demonstrated remarkable separation efficiencies of up to 99.960%and a separation flux of370.05 L·m^(-2)·h^(-1).Moreover,it exhibits stability,durability,and abrasion resistance,maintaining excellent separation performance even when exposed to strong acids and alkalis without any damage to its structure and *** six cycles of reuse,it achieved a separation flux of 417.97 L·m^(-2)·h^(-1)and a separation efficiency of 99.747%.Furthermore,after undergoing 500 cycles of strong abrasion,the separation flux remained at 124.39 L·m^(-2)·h^(-1),with a separation efficiency of 99.992%.These properties make it suitable for the long-term use in harsh operating *** attribute these properties to the electrostatic effect resulting from the amino group on UiO-66-NH_(2)and its in-situ growth on the CFM,which forms a size-screening separation *** work highlights the potential of the CFM@UiO-66-NH_(2)membrane as an environmentally friendly size-screening

关键词： Collagen fibers Metal-organic frameworks Oil-in-water emulsion separation Size sieving

Fertility of domestic sewage and eutrophication in estuarine harbor

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Acta Oceanologica Sinica 1990年第2期9卷 277-282页

作者： Wu Yuduan Zeng Jiye zheng zhihong Luo Xiaohong

The concentration and partition ratio of various speciations of nutrients in domestic sewage were determined. The transformation and transportation among the speciations, as well as their biological effects during sewage-seawater mixing were simulated in laboratory. The results are compared with field observation and the following findings are: i) The suitable range of ratio DIN/DIP in seawater for growth of phytoplankton in subtropical estuary and harbor is quite wide. It could grow well even in the range of 15-55 in atom ratio, and is independ of the variation in levels of N and P. ii) The transformation rate among the speciations of phosphorus is within the range of 0. 5 to 1. 1 μmol/d . iii) Phytoplankton uptakes P prior to N during its growth. The growth rate for Skeletonema costatum (the major species) and field algae are 0. 34-0. 58/d and 0. 30-0. 31/d, respectively. iv) The red tide species Prorocentrum micans could become the dominant species to a density 107 cells/L after Skeletonema costatum blooms and phosphorus is almost exhausted. In a word, eutrophication may bring out red tide in estuarine harbor, but the acceleration of degredation, transportation and precipitation of nutrients by turbid water is beneficial to the alleviation of eutrophication and red tide.

关键词： Fertility of domestic sewage and eutrophication in estuarine harbor DIP

On the status and role of social sports in urban development

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International Journal of Technology Management 2015年第7期 46-48页

作者： zhihong zheng Weifang University of Science and Technology Weifang 262700 China

The importance of social sports in urban development show that it makes the quality of urban residents greatly improved and becomes a strong surge of power to promote the development of economy; it makes the cultural connotations of the city more abundant and becomes the propeller of urban cultural development. And the specific roles show that it forms the group of physical and mental health in the city; it makes sports become an important part of people＇ s lives; it cultivates and enhances the citizens＇ sense of honor; it improves the urban management and enhances the image of the city.

关键词： urban development social sports status role

Coalfield structure and structural controls on coal in China

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International Journal of Coal Science & Technology 2020年第2期7卷 220-239页

作者： Daiyong Cao Anmin Wang Shuzheng Ning Huantong Li Aijun Guo Limin Chen Kang Liu Jieqing Tan zhihong zheng College of Geoscience and Surveying Engineering China University of Mining and TechnologyBeijingBeijing100083China China National Administration of Coal Geology Beijing100039China Xi’an University of Science and Technology Xi’an710054China Sichuan Coalfield Geology Bureau Chengdu610072China Strategic Research Center of Oil and Gas Resources Ministry of Land and ResourcesBeijing100034China

The occurrence of coal-bearing strata in a variety of coal-bearing basins of China is characterized by late tectonic deformation and remarkable spatial and geochronologic *** main controlling factors,which determine the tectonic framework of coalfields,include the geodynamic environment,tectonic evolution,deep structures,tectonic stress,and lithologic combination of the coal *** Chinese continent has experienced multi-stage tectonic movements since the Late *** spatial and temporal heterogeneity of its continental tectonic evolution,the complexity of its basement properties,and its stratigraphic configurations control the tectonic framework of its coalfields’present complex and orderly *** concept of coal occurrence structural units is proposed in this paper and is defined as the structural zoning of coal ***’s coalfields are divided into five coal occurrence structural areas,and the structural characteristics of the coalfields in five main coal occurrence areas throughout the country are *** on the analysis of the relationship between the structure characteristics and occurrence of coal in these coalfields,the coal-controlling structures are divided into six groups:extensional structural styles,compressional structural styles,shearing and rotational structural styles,inverted structural styles,sliding structural styles,and syn-depositional structural *** addition,the distribution of coal-controlling structural styles is briefly summarized in this paper.

关键词： Coalfield structures Coal-controlling structures Coal occurrence structural units Types of coal-bearing basins Coal-controlling structural styles

Effect of domestic sewage on growth of phytoplankton-mathematical model

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Journal of Environmental Sciences 1991年第1期3卷 59-69页

作者： Luo Xiaohong, Zeng Jiye, zheng zhihong and Wu YuduanXiamen University,Xiamen 361005,China

A mathematical model relating to the change in phytoplankton biomass in the period of growth and nutrient concentration in the media was proposed on the basis of the Monod equation and was testified by simulation experiments. Analysis of the experiment data showed that: the half-saturation constants for growth Kp (μmol/L) for Skeletonema, Chaetoceros and Prorocentrum were 5.52, 1.90 and 0.46, respectively; the balance between stimulation of nutrients and the inhibition of some other materials was found in the effect of domestic sewage on algal growth and the stimulation played a leading role; domestic sewage was more stimulative on dinoflag-ellate than on diatom and chlorophyte when the assemblage of the algae was cultured. The experiment suggested that mathematical model reasonably explained the characteristics of phytoplankton growth in different nutrient conditions and was worthy to be further improved for eutrophication prediction in off-shore water.

关键词： domestic sewage phytoplankton eutrophication nutrient mathematical model.

Policies for Unconventional Oil and Gas Resources in China

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China Oil & Gas 2015年第3期22卷 9-14页

作者： zheng zhihong Zhu Jie Yang Hulin Research Center of Oil and Gas Resources Strategy Ministry of Land and Resources of the People's Republic of China

Regarding the abundant reserves in China, unconventional oil and gas resources has great potential in exploration and development, and may be the significant complement to conventional oil and gas resources. Based on the summary of the reservoir potential and current situation of exploration and development of unconventional oil and gas resources, such as coalbed methane(CBM), shale gas and oil shale, we analyzed the incentive policies proposed to promote the development of unconventional oil and gas industry, including industrial planning, resource management and related tax policy. These policies played an important role in promoting the exploration, development and utilization of unconventional oil and gas resources.

关键词： unconventional CBM shale gas oil shale policy

PREPARATION OF TiN FILMS BY N_2 ASSISTED Xe^+ ION BEAM ENHANCED DEPOSITION AND THEIR MECHANICAL PROPERTIES

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Acta Metallurgica Sinica(English Letters) 1992年第11期5卷 370-374页

作者： WANG Xi YANG Genqing LIU Xianghuai zheng zhihong HUANG Wei ZHOU Zuyao ZOU Shichang Ion Beam Laboratory,Shanghai Institute of Metallurgy,Academia Sinica,shanghai,China Shanghai Inst of Metallurgy Acad Sinica Shanghai China

A new method for preparation of hard TiN films has been developed by using electron beam evaporation-deposition of Ti and bombardment with 40 keV Xe^+ ion beam in a N_2 gas *** synthesized TiN films were superior to PVD and CVD ones in respects of improved adhesion to substrate and low preparing *** exhibited good wear resistance and high hardness up to 2200 kg/mm^*** industrial applications have been reported.

关键词： TiN film ion beam enhanced deposition mechanical properties

Petroleum and Gas Potential in China

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China Oil & Gas 2016年第4期23卷 5-10页

作者： zheng zhihong Jia Jun Gao Xuan Liu Zhuoya Zan Xin Research Center of Petroleum Strategy Ministry of Land and Resources

China's national hydrocarbon resources assessment(2015),which is a classified assessment for oil,gas,shale gas,and coalbed methane,has been successfully carried out,and has achieved systematical results and generated the newest understandings regarding the potential of China's hydrocarbon *** results indicate that China has abundant hydrocarbon resources,including a considerable resource potential of shale gas and coalbed methane,but it also predicts that China will face increasing levels of difficulty in exploration and development.

关键词： Resources assessment Oil Gas Shale gas Coalbed methane