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Environmental Science and Ecotechnology 2024年第5期21卷 149-157页

作者： Chang Liu Lin Li linji xu Tanglong Zhang Qiang He Xiaodong Xin Key Laboratory of the Three Gorges Reservoir Region's Eco-environment Ministry of EducationCollege of Environment and EcologyChongqing UniversityChongqing400045PR China Research Center for Eco-Environmental Engineering Dongguan University of TechnologyDongguan523808PR China

N,N-bis(carboxymethyl)-L-glutamate(GLDA)is an eco-friendly chelating agent that effectively extracts multivalent metal ions from waste activated sludge(WAS)flocs,which could potentially alter their ***,the effect of GLDA on the production of volatile fatty acids(VFAs)from WAS is not well ***,we demonstrate that pretreatment with GLDA at a concentration of 200 mmol per kg VSS results in a significant increase of 142%in extractable extracellular polymeric substances and enhances the total VFAs yield by 64%compared to untreated *** reveal GLDA's capability to mobilize organic-binding multivalent metal ions within sludge ***,post-pretreatment analyses showed the release of 69.1 mg L^(-1) of Ca and 109.8 mg L^(-1) of Fe ions from the flocs,leading to a more relaxed floc structure and a reduced apparent activation energy(10.6 versus 20 kJ mol1)for WAS *** dynamic simulations further demonstrate GLDA's preferential binding to Fe3þand Ca2þover Mg2þ.Our study suggests that GLDA pretreatment causes minimal disruption to reactor stability,thereby indicating the stability of microbial community *** has emerged as a viable pretreatment agent for enhancing volatile fatty acids production from waste activated sludge.

关键词： Anaerobic fermentation Pretreatment Resource recovery Multivalent metals Solubilization

Experimental and computational investigation on flow characteristics of rotating cavities with high inlet pre-swirl axial throughflow

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Chinese Journal of Aeronautics 2024年第4期37卷 276-293页

作者： Sipeng WANG Xiang LUO linji GUO Zeyu WU Yang BAI Zongchao LI Lichun MA School of Energy and Power Engineering Beihang UniversityBeijing 100191China Research Institude of Aero-Enigine Beihang UniversityBeijing 100191China National Key Laboratory of Science and Technology on Aero-Engine Aero-Thermodynamics Beihang UniversityBeijing 100191China Shenyang Aeroengine Research Institute Aero Engine Corporation of ChinaShenyang 110015China

As an integral part of the internal air system of aero-engines,the axial throughflow of the cooling air can interact with the cavity flow between the rotating compressor disks,forming a threedimensional,unsteady,and unstable flow *** flow characteristics in an engine-like rotating multi-stage cavity with throughflow were investigated using particle image velocimetry,flow visualization technology and three-dimensional unsteady Reynolds-Averaged Navier-Stokes (RANS)*** focus of current research was to understand the distribution of the mean swirl ratio and its variation with a wide range of non-dimensional parameters in the co-rotating cavity with high inlet pre-swirl axial *** maximum axial Reynolds number and rotational Reynolds numbers could reach 4.41×10^(4)and 1.24×10^(6),*** velocity measurement results indicate that the mean swirl ratio is greater than 1 and decreases with an increase in the radial *** flow structure is dominated by the Rossby number,and two different flow patterns (flow penetration and flow stratification) are identified and confirmed by flow visualization *** the absence of buoyancy,the flow penetration caused by the precession of the throughflow makes it easier for the throughflow to reach a high radius *** consistency of results between measurements and numerical calculations is *** study provides a theoretical basis and data support for toroidal vortex breakdown,which is of practical significance for the design of high-pressure compressor cavities.

关键词： Compressor Axial throughflow Rotating cavity flow Particle image velocimetry Unsteady RANS Flow pattern

Cyclodextrin nanofilms with hydrophobic and hydrophilic channels for solvent permeation and molecular sieving

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Nano Research 2024年第7期17卷 6638-6644页

作者： Kai Zhang Yu Dai Yongli Shi Zhaoxin Zhang linji Li Xiaojin Zhang Fan Xia Faculty of Materials Science and Chemistry China University of GeosciencesWuhan 430074China Henan Academy of Geology Zhengzhou 450052China

Nanofilms that can fast permeate solvents and accurately sieve molecules are of significant importance for separation.A promising strategy is to align the inner cavities of macrocycles into the channels within nanofilms,and control the channel size by selecting the ***,the channels outside the macrocycles are ***,we prepare nanofilms with hydrophobic channels(cyclodextrin inner cavity)and hydrophilic channels(cyclodextrin outer space)through interfacial polymerization of azobenzene-4,4’-dicarbonyl dichloride and amino-functionalizedβ-*** utilizing the significant geometric changes caused by the photoisomerization of azobenzene,nanofilms with adjustable hydrophilic channel sizes were *** nanofilms have high permeability to polar and non-polar solvents,and can distinguish molecules with almost the same molecular weight but different *** work expands the development of next-generation nanofilms generated through interfacial polymerization by incorporating rational molecular design.

关键词： nanofilm β-cyclodextrin azobenzene interfacial polymerization solvent permeation molecular sieving

An organic visible-photocatalytic-adsorbence mechanism to high-efficient removal of heavy metal antimony ions

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Materials Reports(Energy) 2024年第3期4卷 49-59页

作者： linji Yang Ke Sun Tao Liu Ciyuan Huang Libin Zhang Yang Zhou Kai Chen Shangfei Yao Ziyang Zhang Chenfu Zhao Hongxiang Zhu Bingsuo Zou Shuangfei Wang Dongfeng xue School of Chemistry and Chemical Engineering Guangxi Key Laboratory of Processing for Non-ferrous Metals and Featured MaterialsState Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite StructuresSchool of ResourcesEnvironment and MaterialsGuangxi UniversityNanning 530004China Department of Biochemistry and Cell Biology YouJiang Medical University for NationalitiesBaise CityGuangxi Zhuang Autonomous Region 533000China Shenzhen Institute for Advanced Study University of Electronic Science and Technology of ChinaShenzhen 518110China

Purification of emerging heavy metal antimony contaminated water based on advanced ingenious *** activated modified coconut shell charcoal(CSC)was synthesized and evaluated as a substrate-supported loaded organic photovoltaic material,PM6:PYIT:PM6-b-PYIT,to prepare a surprisingly highly efficient,stable,environmentally friendly,and recyclable organic photocatalyst(CSC–N–P.P.P),which showed excellent effects on the simultaneous removal of Sb(Ⅲ)and Sb(Ⅴ).The removal efficiency of CSC-N-P.P.P on Sb(Ⅲ)and Sb(Ⅴ)reached an amazing 99.9%in quite a short duration of 15 *** the same time,under ppb level and indoor visible light(~1 W m^(2)),it can be treated to meet the drinking water standards set by the European Union and the *** Environmental Protection Agency in 5 min,and even after 25 cycles of recycling,the efficiency is still maintained at about 80%,in addition to the removal of As(Ⅲ),Cd(Ⅱ),Cr(Ⅵ),and Pb(Ⅱ)can also be *** catalyst not only solves the problems of low reuse rate,difficult structure adjustment and high energy consumption of traditional photocatalysts but also has strong applicability and practical *** pioneering approach provides a much-needed solution strategy for removing highly toxic heavy metal antimony pollution from the environment.

关键词： Organic photocatalyst Photocatalysis Purification Indoor visible light

行动者网络视域下智慧公共法律服务体系建设的逻辑与优化——以“宜律帮”平台为例

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湖北社会科学 2024年第2期 91-100页

作者：陈林基华中师范大学中国农村研究院湖北武汉430079

公共法律服务是依法治国的基础性、服务性与保障性工作,数字赋能公共法律服务体系有利于实现覆盖城乡、均等普惠、便捷高效、专业可靠目标。从行动者网络理论分析,结合“宜律帮”平台建设案例,智慧公共法律服务体系建设的行动逻辑是问... 详细信息

公共法律服务是依法治国的基础性、服务性与保障性工作,数字赋能公共法律服务体系有利于实现覆盖城乡、均等普惠、便捷高效、专业可靠目标。从行动者网络理论分析,结合“宜律帮”平台建设案例,智慧公共法律服务体系建设的行动逻辑是问题呈现、网络创建、利益赋予与多元互动的,建设实效是引领公共法律服务模式创新,形成智慧公共法律服务平台建设经验。但是,“宜律帮”平台建设还存在数字鸿沟、智能差距、行动者互动不足等问题,需要建立数字弱势群体保障机制与法治人才深度参与平台建设机制、健全智慧公共法律服务体系的组织体制、政企合作机制与沟通反馈机制,进而优化智慧公共法律服务体系建设路径。

关键词：数字法治公共法律服务行动者网络

土地经营权入股公司:股东出资、保本投资与配套制度

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河南社会科学 2024年第2期32卷 68-78页

作者：丁文陈林基华中师范大学法学院湖北武汉430079

土地经营权入股发展农业产业化经营是深化农村土地制度改革的重要举措,也是促进农业适度规模经营、实现小农户和现代农业发展有机衔接的重要途径。土地经营权入股公司应定性为股东出资行为,以公司法为基础,完善股东出资、法人运行与配... 详细信息

土地经营权入股发展农业产业化经营是深化农村土地制度改革的重要举措,也是促进农业适度规模经营、实现小农户和现代农业发展有机衔接的重要途径。土地经营权入股公司应定性为股东出资行为,以公司法为基础,完善股东出资、法人运行与配套措施等方面的法律法规。在股东出资方面,应限定出资标的物范围,完善农村土地价值评估机制。在法人运行方面,为农民股东优先配置可转换的、可累积的及可参与嗣后分配的优先股以基本实现其“保底收益+按股分红”目的;为农民股东配置优先股赎回权、清算优先权与股份回购保险以基本实现“保本退出”目的。在配套措施方面,国家应灵活运用宏观调控措施以改善农业弱质性问题,完善农村社会保障制度以破除农民失地失业困境。

关键词：土地经营权入股股东出资优先股国家调节

农村职业教育高质量发展的动力源与路径选择——基于社会支持理论的分析

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工业技术与职业教育 2024年第4期22卷 120-124页

作者：过林吉常州工业职业技术学院江苏常州213164

社会支持理论在纾解被支持者心理压力,消除发展障碍等方面具有积极的作用,基于社会支持理论的农村职业教育高质量发展具有其特征,有着多维度的动力源。然而,当前农村职业教育高质量发展存在着政府教育投入失衡导致农村职业教育法律法规... 详细信息

社会支持理论在纾解被支持者心理压力,消除发展障碍等方面具有积极的作用,基于社会支持理论的农村职业教育高质量发展具有其特征,有着多维度的动力源。然而,当前农村职业教育高质量发展存在着政府教育投入失衡导致农村职业教育法律法规缺位与农村职业教育经费投入不足,农村职教本体育人模式偏移导致农村职业教育培训体系缺乏,社会群体的尊职敬师氛围落差导致农村职业教育师资力量短缺等瓶颈,亟须政府机关、社会群体、农村职教本体三方面社会支持的协同合作,落实专设资金来源通道、坚定技术技能型人才培养导向、弘扬推进学习型农村,从而实现农村职业教育高质量发展。

关键词：农村职业教育发展高质量社会支持理论

Multisoliton Solutions of the （3＋1）—Dimensional Nizhnik—Novikov—Veselov Equation

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Communications in Theoretical Physics 2002年第3期37卷 265-268页

作者： linji LOUSen－Yue DepartmentofPhysics ZhejiangNormalUniversityJinghua321004China DepartmentofAppliedPhysics ShanghaiJiaoTongUniversityShanghai200030China

Using the standard truncated Painlev? analysis, we can obtain a B?cklund transformation of the (3+1)-dimensional Nizhnik?Novikov?Veselov (NNV) equation and get some (3+1)-dimensional single-, two- and three-soliton solutions and some new types of multisoliton solutions of the (3+1)-dimensional NNV system from the B?cklund transformation and the trivial vacuum solution.

关键词： soliton solutions high-dimensional model

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酱腌菜加工废水处理技术综述

三峡生态环境监测 2019年第4期4卷 57-64页

作者：李子未封丽许林季陈婷婷廖伟伶姚源余义昌重庆市生态环境科学研究院

蔬菜腌制是一种世界范围内通行的、历史悠久的蔬菜加工方法,但其产生的废水含有大量的盐分和有机物,直接排放会对生态环境造成恶劣影响。因此在许多国家和地区对于此类废水排放的法规变得越来越严格,同时对废水中有机物和盐分的去除提... 详细信息

蔬菜腌制是一种世界范围内通行的、历史悠久的蔬菜加工方法,但其产生的废水含有大量的盐分和有机物,直接排放会对生态环境造成恶劣影响。因此在许多国家和地区对于此类废水排放的法规变得越来越严格,同时对废水中有机物和盐分的去除提出了要求。高盐有机废水的处理涉及物理化学方法和传统生物处理方法,生物处理方法经济有效但易被高盐度影响,物理化学方法可以对盐分进行去除但成本高昂。目前,仍没有针对此类废水的兼具稳定处理效果和经济性的综合处理方案。本文对国内外主要关注的酱腌菜高盐有机废水可行或具有潜力的处理技术进行综述,总结高盐度对污水生物处理技术的影响,评述相关工程案例,讨论高盐度有机废水处理存在的问题及技术发展趋势。

关键词：酱腌菜废水高盐有机废水生物处理物化处理

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污水处理中新型无机除磷填料的研究进展

中国资源综合利用 2022年第9期40卷 99-104,120页

作者：王鑫黄健盛吴杰谭俊峰郑昊天唐倩许林季重庆科技学院机械与动力工程学院重庆科技学院化学化工学院重庆401331 重庆大学环境与生态学院重庆400030

磷是导致水体富营养化的主要污染物之一,污水中排放的磷是水体磷的主要来源之一。化学除磷成本相对较高,除磷填料已成为强化污水除磷的重要手段。本文分析了不同无机除磷填料的物理特性,研究了烧结法、免烧法、改性法等填料制备方法的... 详细信息

磷是导致水体富营养化的主要污染物之一,污水中排放的磷是水体磷的主要来源之一。化学除磷成本相对较高,除磷填料已成为强化污水除磷的重要手段。本文分析了不同无机除磷填料的物理特性,研究了烧结法、免烧法、改性法等填料制备方法的使用条件,探讨了影响无机除磷填料效果的因素,综述了其在污水处理工艺中的应用,以推进无机除磷填料的发展,提高污水处理水平。

关键词：除磷填料制备方法污水处理