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固定化菌剂对石油烃污染土壤的修复研究

环境科学与技术 2024年第6期47卷 52-58页

作者：李玲玲王曰杰房师平郭强之赵盛中石化安全工程研究院有限公司化学品安全全国重点实验室山东青岛266100 应急管理部化学品登记中心山东青岛266100 中石化国家石化项目风险评估技术中心有限公司山东青岛266100

该文旨在分离高效石油烃(TPHs)降解菌并制备不同生物质基生物炭固定化复配菌剂,评估不同菌剂对土壤中石油烃的降解作用。从石油烃污染土壤中分离纯化出假单胞菌(Pseudomonas sp. E)和中间苍白杆菌(Ochrobactrum intermedium H)。2株菌具... 详细信息

该文旨在分离高效石油烃(TPHs)降解菌并制备不同生物质基生物炭固定化复配菌剂,评估不同菌剂对土壤中石油烃的降解作用。从石油烃污染土壤中分离纯化出假单胞菌(Pseudomonas sp. E)和中间苍白杆菌(Ochrobactrum intermedium H)。2株菌具有TPHs降解协同作用,最佳复配比例为2∶1,5 d TPHs降解率达到85.97%,显著优于单一菌株。采用玉米秸秆、蟹壳、木屑生物炭载体材料对菌株进行固定,开展50 d室内原位土壤修复模拟实验评估3种固定化菌剂对土壤TPHs的降解性能和酶活性变化。结果表明,各处理组对TPHs的降解率大小依次为:蟹壳生物炭固定化菌剂(78.3%)>玉米秸秆生物炭固定化菌剂(75.7%)>木屑生物炭固定化菌剂(73.9%)>游离混合菌(65.3%)>对照组(9.83%)。其中蟹壳生物炭固定化菌剂降解效率最高,半衰期最短,为22.21 d,土壤中过氧化氢酶、脱氢酶活性均显著增加,土壤肥力明显升高,具有土壤原位生物修复潜力。

关键词：石油烃降解菌固定化菌剂石油烃污染土壤生物修复

Removal of phenol by Isochrysis galbana in seawater under varying temperature and light intensity

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Journal of Oceanology and Limnology 2020年第3期38卷 773-782页

作者： LI Hao MENG Fanping wang yuejie LIN Yufei Key Laboratory of Marine Environment and Ecology Ministry of EducationQingdao 266100China College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China National Marine Hazard Mitigation Service Ministry of Natural Resources of the People’s Republic of ChinaBeijing 100194China

Phenol is a common industrial chemical produced and transported worldwide ***,accidental spillage of phenol in the ocean causes an increasing *** are promising to remove phenol from marine ***,temperature and light intensity are two main factors that markedly influence biodegradation in marine *** this study,a marine golden alga Isochrysis galbana is selected to research the removal of phenol under different temperatures(10-30℃)and light intensities(0-240μmol/(m^2·s)).The results show that the most suitable temperature and light intensity for phenol removal are 20℃and 180μmol/(m2·s),respectively,and 100 mg/L of phenol can be completely removed by microalga in 24 h at these *** can also remove phenol under dark and low-temperature *** removal of phenol by *** at diverse temperatures and light intensities conform to first-order kinetics,and the process under dark conditions conform to zero-order ***,*** can be used in the in-situ bioremediation of polluted seawater by phenol.

关键词： phenol Isochrysis galbana temperature light intensity biodegradation

Effect of pH, Temperature, and CO2 Concentration on Growth and Lipid Accumulation of Nannochloropsis sp. MASCC 11

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Journal of Ocean University of China 2020年第5期19卷 1183-1192页

作者： PENG Xiaoling MENG Fanping wang yuejie YI Xiaoyan CUI Hongwu Key Laboratory of Marine Environmental Science and Ecology Ministry of EducationOcean University of ChinaQingdao 266100China

This study determined growth and lipid accumulation in Nannochloropsis sp. MASCC 11 cultivated at different pH, temperatures, and CO2 concentrations in 10-day period. The suitability for biodiesel production was also evaluated based on the fatty acid profiles of microalgae lipid. Nannochloropsis sp. MASCC 11 showed an excellent tolerance to acidic pH(as low as 4.0), high temperatures(at least 40℃), and high CO2 concentrations(5%-15%), which are major stressed conditions in flue gas. The highest algal biomass was acquired at pH of 9.0(0.44 g L^-1), a temperature of 35℃(0.63 g L^-1), and a CO2 concentration of 5%(2.27 g L^-1). Maximum lipid production was obtained at p H of 6.0(108.2 mg L^-1), a temperature of 35℃(134.6 mg L^-1), and a CO2 concentration of 5%(782.7 mg L^-1). Synthesis of polyunsaturated fatty acids(PUFAs) in biomass was stimulated under high CO_2 concentrations, remaining above 80% of total fatty acids, mainly composed of C16:3, C18:2, and C18:3. This led to the algae-based biodiesel having a lower oxidation stability, better cold flow properties, and other parameters such as its kinematic viscosity, cetane number, and specific gravity complied with ASTM or EN 14214 biodiesel specifications. Therefore, the improvement of oxidative stability needs to be considered before Nannochloropsis sp. MASCC 11 lipid can be used for biodiesel production, even if this species can grow well under stressful conditions.

关键词： Nannochloropsis sp.MASCC 11 tolerance high CO2 biodiesel

Mo_(2)P Monolayer as a Superior Electrocatalyst for Urea Synthesis from Nitrogen and Carbon Dioxide Fixation:A Computational Study

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Energy & Environmental Materials 2024年第1期7卷 207-214页

作者： Dongxu Jiao Zhongxu wang yuejie Liu Qinghai Cai Jingxiang Zhao Carlos R.Cabrera Zhongfang Chen College of Chemistry and Chemical Engineering and Key Laboratory of Photonic and Electronic Bandgap Materials Ministry of EducationHarbin Normal UniversityHarbin 150025China Modern Experiment Center Harbin Normal UniversityHarbin 150025China Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety Harbin 150025China Department of Chemistry and Biochemistry The University of Texas at El PasoEl Paso TX 79968USA Department of Chemistry University of Puerto RicoRio Piedras CampusSan JuanPuerto Rico 00931USA

Urea synthesis through the simultaneous electrocatalytic reduction of N_(2)and CO_(2)molecules under ambient conditions holds great promises as a sustainable alternative to its industrial production,in which the development of stable,highly efficient,and highly selective catalysts to boost the chemisorption,activation,and coupling of inert N_(2)and CO_(2)molecules remains rather ***,by means of density functional theory computations,we proposed a new class of two-dimensional nanomaterials,namely,transition-metal phosphide monolayers(TM_(2)P,TM=Ti,Fe,Zr,Mo,and W),as the potential electrocatalysts for urea *** results showed that these TM_(2)P materials exhibit outstanding stability and excellent metallic ***,the Mo_(2)P monolayer was screened out as the best catalyst for urea synthesis due to its small kinetic energy barrier(0.35 eV)for C-N coupling,low limiting potential(-0.39 V),and significant suppressing effects on the competing side *** outstanding catalytic activity of the Mo_(2)P monolayer can be ascribed to its optimal adsorption strength with the key^(*)NCON species due to its moderate positive charges on the Mo active *** findings not only propose a novel catalyst with high-efficiency and high-selectivity for urea production but also further widen the potential applications of metal phosphides in electrocatalysis.

关键词： C-N coupling density functional theory Mo_(2)P monolayer urea synthesis

Study on Optimization of Polymer Enhanced Foam Formulation System

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Engineering（科研） 2023年第11期15卷 742-748页

作者： Meinan wang yuejie wang Hongyou Zhang Xiaoyan Yang Xiaoming Chen Bohai Oilfield Research Institute of CNOOC Ltd.—Tianjin Branch Tang Gu Tianjin China

Taking the pilot test area of polymer enhanced foam flooding in Y oilfield as the prototype, a numerical core model was established, and the polymer enhanced foam formulation system was optimized by analyzing the resistance factor and the change rule of oil recovery of different formulation systems. Research shows that the higher the polymer concentration, the greater the resistance factor, and the more obvious the sealing effect formed in the formation. The concentration of surfactant has a greater impact on the resistance factor. With the increase of surfactant concentration, the resistance factor increases significantly, and the plugging effect of foam agent on core is significantly enhanced. With the increase of gas-liquid ratio, the resistance factor first increases and then decreases. When the gas-liquid ratio is 1:1, the resistance is the largest, and the foam agent has the strongest plugging effect on the core. The optimal formula system of polymer enhanced foam flooding in Y oilfield is: polymer concentration is 1200 mg/L, surfactant concentration is 0.25 wt%, gas-liquid ratio is 1:1.

关键词： Enhanced Foam Polymer Concentration Surfactant Concentration Gas-Liquid Ratio

Research on Water Sensitivity and Velocity Sensitivity of Loose Sandstone Reservoir in China Offshore Oilfield

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World Journal of Engineering and Technology 2022年第2期10卷 254-263页

作者： Dengfei Yu Ming Long yuejie wang Qin Huang Jingling Li Tianjin Branch of CNOOC Ltd. Tianjin China

Aiming at the development characteristics of Bohai P oilfield, formation mechanism of reservoir damage was analyzed by mines of mineral composition, micro-pore structure, and seepage mechanism. Microscopic petrological observations and laboratory core experiments show that the content of clay minerals such as the Imon mixed layer and kaolinite is high with high porosity and good pore roar structure;the water sensitivity is medium to strong, The lower the salinity of injected water, the greater the drop in core permeability;the velocity-sensitive damage is strong, and permeability increases with the increase in flow velocity, and a large number of particles are observed in the produced fluid under the microscope. Aiming at the contradiction of velocity sensitivity between core permeability increase and the permeability decrease near the wellbore, the velocity sensitivity seepage model of “long-distance migration and blockage near the well” is proposed, and the permeability and formation distribution formula are deduced. The calculated value is close to the test value of actual pressure recovery test. The research results of water sensitivity and velocity sensitivity provide important guidance for Bohai P oilfield to improve production and absorption capacity and reservoir protection.

关键词： Reservoir Damage Water Sensitivity Velocity Sensitivity Loose Sandstone Seepage Mechanism Clay Minerals

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管理胜任特征结构的影响因素分析

科学学与科学技术管理 2007年第2期28卷 142-147页

作者：冯明王跃节重庆大学经济与工商管理学院重庆400044

对管理胜任特征结构的影响因素进行了分类,提出了影响管理胜任特征结构的三大因素,即外部环境、内部环境和任务环境。其中外部环境包括政治环境、经济环境、社会文化环境、行业环境四个因素,内部环境包括组织性质、组织文化和组织所处... 详细信息

对管理胜任特征结构的影响因素进行了分类,提出了影响管理胜任特征结构的三大因素,即外部环境、内部环境和任务环境。其中外部环境包括政治环境、经济环境、社会文化环境、行业环境四个因素,内部环境包括组织性质、组织文化和组织所处发展阶段三个因素,任务环境包括管理层次和管理职能两个因素。

关键词：胜任力胜任特征结构影响因素

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制造业管理胜任力情景判断测验的信效度研究

管理学报 2008年第6期5卷 876-882页

作者：冯明王跃节重庆大学经济与工商管理学院

为了考察制造业管理胜任力情景判断测验在中国文化背景下的适应性,用"制造业管理胜任力测验量表"(中文版)对152名制造行业在职员工和46名在读硕士研究生进行施测。研究表明该量表在中国文化背景下具有较好的效标关联效度,验证性因素分... 详细信息

为了考察制造业管理胜任力情景判断测验在中国文化背景下的适应性,用"制造业管理胜任力测验量表"(中文版)对152名制造行业在职员工和46名在读硕士研究生进行施测。研究表明该量表在中国文化背景下具有较好的效标关联效度,验证性因素分析表明,实测数据与胜任力6因素模型得到较好拟合,具有较好的构思效度。研究也证明了众多学者认为的情景判断测验能够测到认知能力和工作经验的观点。最后,对不同性别量表得分差异进行研究,发现男性组和女性组量表得分不存在显著性差异。

关键词：制造业管理胜任力情景判断测验信度效度

Co-enhancement of thermal conduction and radiation through morphologies controlling of graphene functional layer for chip thermal management

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Nano Research 2024年第10期17卷 8885-8892页

作者： Shuting Cheng Kun wang Shichen Xu Yi Cheng Ruojuan Liu Kewen Huang Hao Yuan Wenjuan Li Yuyao Yang Fushun Liang Fan Yang Kangyi Zheng Zhiwei Liang Ce Tu Mengxiong Liu Xiaomin Yang Jingnan wang Xuzhao Gai yuejie Zhao Xiaobai wang Yue Qi Zhongfan Liu State Key Laboratory of Heavy Oil Processing College of ScienceChina University of PetroleumBeijing 102249China Centre for Nanochemistry Beijing Science and Engineering Centre for NanocarbonsBeijing National Laboratory for Molecular SciencesCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871China Beijing Graphene Institute(BGI) Beijing 100095China College of Energy Soochow Institute for Energy and Materials Innovations(SIEMIS)Jiangsu Provincial Key Laboratory for Advanced Carbon Materials and Wearable Energy TechnologiesSoochow UniversitySuzhou 215006China Department of Chemistry College of Chemistry and Materials EngineeringBeijing Technology and Business UniversityBeijing 100048China

With the continuous advancements in electronics towards downsizing and integration,efficient thermal dissipation from chips has emerged as a critical factor affecting their lifespan and operational *** fan-less chip cooling system has two critical interfaces for thermal transport,which are the contact interface between the base and the chip dominated by thermal conduction,and the surface of the fins dominated by thermal *** different thermal transfer modes of these two critical interfaces pose different requirements for thermal management *** the study,a novel approach was proposed by developing graphene thermal transport functional material whose morphology could be intentionally designed via reformed plasmaenhanced chemical vapor deposition(PECVD)methods to meet the diverse requirements of heat transfer ***,graphene with multilevel branching structure of vertical graphene(BVG)was fabricated through the hydrogenassisted PECVD(H_(2)-PECVD)strategy,which contributed a high emissivity of~*** was deposited on the fins’surface and functioned as the radiation enhanced layer to facilitate the rapid radiation of heat from the heat sinks into the surrounding ***,the well-oriented vertical graphene(OVG)was successfully prepared through the vertical electric field-assisted PECVD process(EF-PECVD),which showed a high directional thermal conductivity of~53.5 W·m^(-1)·K^(-1).OVG was deposited on the contact interface and functioned as the thermal conduction enhanced layer,allowing for the quick transmission of heat from the chip to the heat *** this design concept,the two critical interfaces in the chip cooling system can be jointly enhanced,resulting in a remarkable cooling efficiency enhancement of~30.7%,demonstrating that this novel material possessed enormous potential for enhancing the performance of cooling ***,this research not only provided new design concepts for the cooling system

关键词： chip thermal management thermal conduction thermal radiation graphene morphology control