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7种气态污染物 1

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Corrigendum to “Emerging Organic Contaminants in Chinese Surface Water: Identification of Priority Pollutants Corrigendum

Mengmeng Zhong, Tielong Wang, Wenxing Zhao, Jun Huang, Bin Wang, Lee Blaney, Qingwei Bu, Gang Yu

《工程(英文)》 2023年 第31卷 第12期   页码 139-140 doi: 10.1016/j.eng.2022.09.001

Emerging contaminant control: From science to action

《环境科学与工程前沿(英文)》 2022年 第16卷 第6期 doi: 10.1007/s11783-022-1559-y

摘要: Since the concept of emerging contaminants (ECs) was first proposed in 2001, the global scientific research of ECs has developed rapidly. In the past decades, great progress has been achieved in the scientific research of ECs in China, including the establishment of EC analysis method system, the evaluation of the pollution status, pollution characteristics and environmental risk of ECs in typical regions of China, and establishment of EC control technology system. Continuous progress in scientific research of ECs promoted China’s action on EC control. It is planned that the environmental risk of ECs will be generally controlled by 2035 in China. Priority ECs should be screened for environmental management. Although great efforts have been made, the EC control in China still faces tremendous challenges. It is necessary to bridge the gap between scientific research and decision-making management. Based on the science and technology study, various measures such as engineering, policy management and public participation should be combinedly adopted for EC control.

关键词: Emerging contaminants     Priority pollutants     PPCPs     POPs     Control policy    

Improved resilience measure for component recovery priority in power grids

《工程管理前沿(英文)》 2021年 第8卷 第4期   页码 545-556 doi: 10.1007/s42524-021-0161-5

摘要: Given the complexity of power grids, the failure of any component may cause large-scale economic losses. Consequently, the quick recovery of power grids after disasters has become a new research direction. Considering the severity of power grid disasters, an improved power grid resilience measure and its corresponding importance measures are proposed. The recovery priority of failed components after a disaster is determined according to the influence of the failed components on the power grid resilience. Finally, based on the data from the 2019 Power Yearbook of each city in Shandong Province, China, the power grid resilience after a disaster is analyzed for two situations, namely, partial components failure and failure of all components. Result shows that the recovery priorities of components with different importance measures vary. The resilience evaluations under different repair conditions prove the feasibility of the proposed method.

关键词: resilience measure     power grid     importance measure     component recovery    

Optimization of multi-objective integrated process planning and scheduling problem using a priority based

Muhammad Farhan AUSAF,Liang GAO,Xinyu LI

《机械工程前沿(英文)》 2015年 第10卷 第4期   页码 392-404 doi: 10.1007/s11465-015-0353-y

摘要:

For increasing the overall performance of modern manufacturing systems, effective integration of process planning and scheduling functions has been an important area of consideration among researchers. Owing to the complexity of handling process planning and scheduling simultaneously, most of the research work has been limited to solving the integrated process planning and scheduling (IPPS) problem for a single objective function. As there are many conflicting objectives when dealing with process planning and scheduling, real world problems cannot be fully captured considering only a single objective for optimization. Therefore considering multi-objective IPPS (MOIPPS) problem is inevitable. Unfortunately, only a handful of research papers are available on solving MOIPPS problem. In this paper, an optimization algorithm for solving MOIPPS problem is presented. The proposed algorithm uses a set of dispatching rules coupled with priority assignment to optimize the IPPS problem for various objectives like makespan, total machine load, total tardiness, etc. A fixed sized external archive coupled with a crowding distance mechanism is used to store and maintain the non-dominated solutions. To compare the results with other algorithms, a C-matric based method has been used. Instances from four recent papers have been solved to demonstrate the effectiveness of the proposed algorithm. The experimental results show that the proposed method is an efficient approach for solving the MOIPPS problem.

关键词: integrated process planning and scheduling (IPPS)     dispatching rules     priority based optimization algorithm     multi-objective optimization    

中国地表水中优先控制新兴有机污染物的筛选 Article

仲蒙蒙, 王铁龙, 赵文星, 黄俊, 王斌, Lee Blaney, 卜庆伟, 余刚

《工程(英文)》 2022年 第11卷 第4期   页码 111-125 doi: 10.1016/j.eng.2020.12.023

摘要:

近20 年来,新兴有机污染物(EOC)在水环境中的污染现状和潜在危害引起了人们的广泛关注。由于EOC的种类多、数量大,监测项目、治理措施和法律法规应重点关注对生态系统和人体健康产生重要影响的污染物。本文提出了一种基于危害指数和暴露指数的多标准筛选方法,用于对我国地表水检出的405 种未管控的新兴污染物进行优先筛选。对污染物的危害效应、暴露潜力、生态风险和人体健康风险进行定量分析和初步筛选。危害指数为污染物持久性、生物累积性、生态毒性和人体健康危害的综合效应。同样,暴露指数为检出浓度和检出频率的综合函数。根据危害指数和暴露指数标准化值的乘积,对通过初步筛选的123 种污染物进行优先指数排序。根据排序结果,11 种污染物被列为最高优先等级,36 种污染物被列为高优先等级。通过比较优先指数与暴露指数、危害指数、生态风险、人体健康风险的排序结果,发现优先指数可以有效地整合单个指标的排序结果。根据暴露数据和危害数据的可获得性,划分了4 种不确定类别,并针对4 种不确定类别提出不同的应对措施:①对不确定类别1 中的污染物进行常规监测,制定环境质量标准和管控策略;②对不确定类别2 中的污染物增加环境监测项目;③不对确定类别3 中的污染物增加危害评估;④对不确定类别4 中的污染物增加环境监测和危害评估。总体上,本文提出了我国地表水中应优先控制的19 种新兴污染物名录建议,该名录为我国地表水中EOC的监测、控制、评价和管理提供了必要的信息。

关键词: 优先筛选     新兴有机污染物     危害指数     生态毒性     风险评估    

Multiple Pollutants from Crop and Livestock Production in the Yangtze River: Status and Challenges

《农业科学与工程前沿(英文)》 doi: 10.15302/J-FASE-2023511

摘要:

● Cash crops and livestock production in Yangtze River Basin has grown rapidly.

关键词: Agriculture Green Development     crop production     livestock production     multi-pollutant models     multiple pollutants     Yangtze River Basin    

The R&D of Flue Gas Pollutants Deep-Removal Technology for Coal-fired Power Plants

Xiao-lu Zhang

《工程管理前沿(英文)》 2015年 第2卷 第4期   页码 359-363 doi: 10.15302/J-FEM-2015057

摘要: The flue gas pollutants deep-removal technology (DRT) focusing on PM removal is the prime method of further reducing pollutants emission from coal-fired power plants. In view of the four key technological challenges in developing the DRT, studies were conducted on a series of purification technologies and the DRT was developed and successfully applied in 660 MW and 1000 MW coal-fired units. This paper analyzes the application results of the demonstration project, and proposes a roadmap for the follow-up researches and optimizations.

关键词: coal-fired power plant     pollutants emission reduction     PM2.5     flue gas pollutants     deep-removal    

中国食品安全科技发展方向讨论

魏益民,吴永宁,周乃元,潘家荣

《中国工程科学》 2005年 第7卷 第11期   页码 1-4

摘要:

从发展国家食品安全战略,强化国家食品安全科技的角度,提出中国食品安全科技优先发展的四大方向,即风险分析是食品安全科技战略的首选领域;“从农田到餐桌”整体控制体系是食品安全全程控制技术和操作规范的理论基础,是实施食品安全管理的重要技术手段;检测监测技术是预警、预防、应急的技术依据,应集中力量开发一批内控和标准检验必须的快速检测技术和标准检测技术;以政府、生产者、消费者为责任人主体的管理理念是食品安全管理的基本原则,食品链上的所有责任人应在保障食品质量和安全的问题上主动承担责任。

关键词: 食品安全     科技     战略     发展方向    

Multimedia distribution and health risk assessment of typical organic pollutants in a retired industrial

《环境科学与工程前沿(英文)》 2023年 第17卷 第11期 doi: 10.1007/s11783-023-1742-9

摘要:

● A fine portrayal of organic pollutants in a retired industrial park is provided.

关键词: Organic pollutants     Retired industrial park     Spatial correlation     Health risk assessment    

Characteristics of pollutants behavior in a stormwater constructed wetland during dry days

Jianghua YU, Kisoo PARK, Youngchul KIM

《环境科学与工程前沿(英文)》 2012年 第6卷 第5期   页码 649-657 doi: 10.1007/s11783-012-0426-7

摘要: A stormwater wetland treating non-point source pollution (NPS) from a 64 ha agricultural watershed was monitored over a period of five months. The results indicated that pH and dissolved oxygen (DO) were increased in the wetland due to the algal growth. The highest total suspended solids (TSS) concentration was observed in the aeration pond due to the resuspension of solids, decreased in the wetland. The respective decreases in total nitrogen (TN) and total kjeldahl nitrogen (TKN) were 15.9% and 28.7% on passing through the wetland. The nitrate and ammonia were increased by 45.4% and decreased by 79.9%, respectively. These variations provided strong evidence for the existence of nitrification. The total phosphorus (TP) and phosphate had respective reductions of 52.3% and 58.2% over the wetland. The total chemical oxygen demand (TCOD) and soluble chemical oxygen demand (SCOD) were also decreased. Generally, the TN, TP and phosphate removal efficiencies were positive. These positive removal efficiencies were mainly due to microbial activities, uptake by plants, and chemical precipitation at high pH. Negative removal efficiencies can be caused by continuous rainfall activities, with short antecedent dry days (ADDs) and unstable hydraulic conditions, some other biogeochemical transformations and algal growth also being important parameters.

关键词: constructed stormwater wetland     dry days     nitrification and denitrification     pollutants characteristic    

Immobilization of laccase on organic–inorganic nanocomposites and its application in the removal of phenolic pollutants

《化学科学与工程前沿(英文)》 2023年 第17卷 第7期   页码 867-879 doi: 10.1007/s11705-022-2277-5

摘要: Polydopamine-functionalized nanosilica was synthesized using an inexpensive and easily obtainable raw material, mild reaction conditions, and simple operation. Subsequently, a flexible spacer arm was introduced by using dialdehyde starch as a cross-linking agent to bind with laccase. A high loading amount (77.8 mg∙g‒1) and activity retention (75.5%) could be achieved under the optimum immobilization conditions. Thermodynamic parameters showed that the immobilized laccase had a lower thermal deactivation rate constant and longer half-life. The enhancement of thermodynamic parameters indicated that the immobilized laccase had better thermal stability than free laccase. The residual activity of immobilized laccase remained at about 50.0% after 30 days, which was 4.0 times that of free laccase. Immobilized laccase demonstrated excellent removal of phenolic pollutants (2,4-dichlorophenol, bisphenol A, phenol, and 4-chlorophenol) and perfect reusability with 70% removal efficiency retention for 2,4-dichlorophenol after seven cycles. These results suggested that immobilized laccase possessed great reusability, improved thermal stability, and excellent storage stability. Organic–inorganic nanomaterials have a good application prospect for laccase immobilization, and the immobilized laccase of this work may provide a practical application for the removal of phenolic pollutants.

关键词: polydopamine     pollutant removal     thermodynamic     phenolic pollutants     immobilized laccase    

Analysis of Flue Gas Pollutants Deep-removal Technology in Coal-fired Power Plants

Xiao-lu Zhang

《工程管理前沿(英文)》 2014年 第1卷 第4期   页码 336-340 doi: 10.15302/J-FEM-2014061

摘要: In recent years, frequent haze has made PM become a public hotspot. PM control has been added to the 2012 release “ambient air quality standard.” Currently flue gas pollutant control technology does not easily remove PM . Developing Flue Gas Pollutant Deep-removal Technology (DRT) for coal-fired power plants for deep-removing pollutants such as PM , SO , SO , and heavy metals, is an urgent problem. Based on the analysis of the necessity and existing problems of developing DRT suitable for China, this study focused on PM removal technology, low NO emission of ultra supercritical boiler under all load conditions, and the adaptability of SCR working temperature. Finally, the flue gas pollutant removal system at a 2×660MW supercritical power plant was introduced, and the roadmap for developing DRT for 1,000MW ultra supercritical units was analyzed.

关键词: Coal-fired power plant     flue gas pollutants     deep-removal     PM2.5 removal    

oxyiodide with highly exposed (110) facets on curved carbon nitride for the photocatalytic degradation of pollutants

《化学科学与工程前沿(英文)》 2022年 第16卷 第7期   页码 1125-1138 doi: 10.1007/s11705-021-2116-0

摘要: Crystalline materials with specific facet atomic arrangements and crystal facet structures exhibit unique functions according to their facet effects, quantum size effects and physical and chemical properties. In this study, a novel high-exposure (110) facet of bismuth oxyiodide (BiOI) was prepared (denoted as BiOI-110), and designed as nanosheets rich in oxygen vacancies by crystal facet design and regulation. Graphitic carbon nitride was designed as curved carbon nitride with dibromopyrazine, denoted as DCN, which contributed to a significant structural distortion in plane symmetry and improved the separation of charge carriers. Novel heterostructured BiOI-110/DCN nanosheets with a high-exposure (110) facet and abundant oxygen vacancies were successfully designed to enhance the photocatalytic degradation of organic pollutants. It was demonstrated that complete and tight contact between BiOI-110 and DCN was achieved by changing the size and crystal facet of BiOI. Oxytetracycline (OTC) and methyl blue dyes were used as targets for pollutant degradation, and 85.6% and 96.5% photocatalytic degradation efficiencies, respectively, were observed in the optimal proportion of 7% BiOI-110/DCN. The experimental results and electron spin resonance analysis showed that •O2 and h+ played a major role in the process of pollutant degradation. Additionally, high-resolution liquid chromatography-mass spectrography was used to identify the reaction intermediates of OTC, and the possible degradation pathway of this pollutant was proposed. Finally, the excellent reusability of BiOI-110/DCN nanomaterials was confirmed, providing a new approach for the removal of antibiotics that are difficult to biodegrade. Overall, crystal facet design has been proven to have broad prospects in improving the water environment.

关键词: high-exposure (110) facet     oxygen vacancy-rich     BiOI-110/DCN heterojunction     photocatalytic degradation     visible-light-response    

Beta-cyclodextrin adsorbents to remove water pollutants—a commentary

《化学科学与工程前沿(英文)》 2022年 第16卷 第9期   页码 1407-1423 doi: 10.1007/s11705-022-2146-2

摘要: Beta-cyclodextrin-based adsorbent is a promising adsorbent because it has unique characteristics and able to form host-guest complexes with various organic compounds. Adsorption using beta-cyclodextrin-based adsorbent has continuously improved by various preparation strategies and crosslinking agents. This commentary aims to highlight the preparation strategies, properties, and adsorption mechanisms of beta-cyclodextrin-based adsorbents. The adsorbents can be generally classified according to the preparation methods and display high adsorption capacity especially for dyes. Particularly, composite/nanocomposite beta-cyclodextrin-based adsorbents exhibit outstanding adsorption capacity even though the surface area is lower than that of porous and magnetic beta-cyclodextrin-based adsorbents. The beta-cyclodextrin/chitosan functionalized graphene oxide hydrogel with specific surface of 17.6 m2·g–1 yields an extraordinarily maximum adsorption capacity of 1499 mg·g–1 methylene blue, while beta-cyclodextrin/chitosan modified with iron(II, III) oxide nanoparticles displays a much greater maximum adsorption capacity at 2780 mg·g–1. The hydrophobic interaction, functional groups, hydrogen bonding, and electrostatic interaction govern the adsorption to a greater capacity. Although this commentary is not exhaustive, the preparation strategies and illustrated mechanisms provide useful insights into the adsorbent–adsorbate interactions, cost-effective analysis, challenges, and future directions of beta-cyclodextrin-based adsorbents in wastewater treatment.

关键词: beta-cyclodextrin adsorbent     adsorption     inclusion complex     mechanism     water pollutant     wastewater treatment    

Catalytic reduction of water pollutants: knowledge gaps, lessons learned, and new opportunities

《环境科学与工程前沿(英文)》 2023年 第17卷 第2期 doi: 10.1007/s11783-023-1626-z

摘要:

● Advances, challenges, and opportunities for catalytic water pollutant reduction.

关键词: Molybdenum     Rhenium     Rhodium     Ruthenium     Catalyst Support     Bromate    

标题 作者 时间 类型 操作

Corrigendum to “Emerging Organic Contaminants in Chinese Surface Water: Identification of Priority Pollutants

Mengmeng Zhong, Tielong Wang, Wenxing Zhao, Jun Huang, Bin Wang, Lee Blaney, Qingwei Bu, Gang Yu

期刊论文

Emerging contaminant control: From science to action

期刊论文

Improved resilience measure for component recovery priority in power grids

期刊论文

Optimization of multi-objective integrated process planning and scheduling problem using a priority based

Muhammad Farhan AUSAF,Liang GAO,Xinyu LI

期刊论文

中国地表水中优先控制新兴有机污染物的筛选

仲蒙蒙, 王铁龙, 赵文星, 黄俊, 王斌, Lee Blaney, 卜庆伟, 余刚

期刊论文

Multiple Pollutants from Crop and Livestock Production in the Yangtze River: Status and Challenges

期刊论文

The R&D of Flue Gas Pollutants Deep-Removal Technology for Coal-fired Power Plants

Xiao-lu Zhang

期刊论文

中国食品安全科技发展方向讨论

魏益民,吴永宁,周乃元,潘家荣

期刊论文

Multimedia distribution and health risk assessment of typical organic pollutants in a retired industrial

期刊论文

Characteristics of pollutants behavior in a stormwater constructed wetland during dry days

Jianghua YU, Kisoo PARK, Youngchul KIM

期刊论文

Immobilization of laccase on organic–inorganic nanocomposites and its application in the removal of phenolic pollutants

期刊论文

Analysis of Flue Gas Pollutants Deep-removal Technology in Coal-fired Power Plants

Xiao-lu Zhang

期刊论文

oxyiodide with highly exposed (110) facets on curved carbon nitride for the photocatalytic degradation of pollutants

期刊论文

Beta-cyclodextrin adsorbents to remove water pollutants—a commentary

期刊论文

Catalytic reduction of water pollutants: knowledge gaps, lessons learned, and new opportunities

期刊论文