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Total phosphorus accident pollution and emergency response study based on geographic information system

Aifeng Zhai, Xiaowen Ding, Lin Liu, Quan Zhu, Guohe Huang

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 3, doi: 10.1007/s11783-020-1223-3

Abstract: A new algorithm of two-dimensional water quantity and the quality model was built. The migration and diffusion of TP was simulated. The emergency measures for sudden water pollution accidents was proposed. In recent years, sudden water pollution accidents in China’s rivers have become more frequent, resulting in considerable effects on environmental safety. Therefore, it is necessary to simulate and predict pollution accidents. Simulation and prediction provide strong support for emergency disposal and disaster reduction. This paper describes a new two-dimensional water quantity and the quality model that incorporates a digital elevation model into the geographic information system. The model is used to simulate sudden water pollution accidents in the main stream of the Yangtze River and Jialing River in the Chongqing section of the Three Gorges Reservoir area. The sectional velocity distribution and concentration change of total phosphorus are then analyzed under four hydrological situations. The results show that the proposed model accurately simulates and predicts the concentration change and migration process of total phosphorus under sudden water pollution accidents. The speed of migration and diffusion of pollutants is found to be greatest in the flood season, followed by the water storage period, drawdown season, and dry season, in that order. The selection of an appropriate water scheduling scheme can reduce the peak concentration of river pollutants. This study enables the impact of pollutants on the ecological environment of river water to be alleviated, and provides a scientific basis for the emergency response to sudden water pollution accidents in the Three Gorges Reservoir area.

Keywords： Sudden water pollution accident     Total phosphorus     Predictive model     Contaminant simulation     Water scheduling    

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Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion accidents

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Frontiers of Environmental Science & Engineering 2012, Volume 6, Issue 6,   Pages 839-848 doi: 10.1007/s11783-012-0409-8

Abstract: With EPANET toolkit, it simulated the propagation of the contaminant, and calculated the peak concentrationof the contaminant and mass delivered at different nodes.consumers, different weights were assigned to the consumer nodes for assessing the influence of the contaminantIn conclusion, the response time, the relationships between the peak concentration of contaminant and

Keywords： water distribution network     hazard     vulnerability     contaminant accident    

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Emerging contaminant control: From science to action

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 6, doi: 10.1007/s11783-022-1559-y

Abstract: 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.

Keywords： Emerging contaminants     Priority pollutants     PPCPs     POPs     Control policy    

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Analytical solutions of three-dimensional contaminant transport in uniform flow field in porous media

Hongtao WANG, Huayong WU

Frontiers of Environmental Science & Engineering 2009, Volume 3, Issue 1,   Pages 112-128 doi: 10.1007/s11783-008-0067-z

Abstract: The purpose of this study is to present a library of analytical solutions for the three-dimensional contaminantThe library is widely applicable to solve contaminant transport problems of one- or multiple- dimensions

Keywords： solution library     contaminant transport     analytical solution     dispersion and advection     porous media     type    

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EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATION

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 3,   Pages 479-491 doi: 10.15302/J-FASE-2023480

Abstract:

● LFD was treated by fly ash-based chemical precipitation and CO2 mineralization.

Keywords： anaerobic digestion     chemical oxygen demand     fly ash     ion removal     total phosphate    

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Genetic Study Identifies CBLN4 as a Novel Susceptibility Gene for Accident Proneness

Shu-lin Zhang,Hui-qing Jin,Yang Song,Wan-sheng Yu,Liang-dan Sun

Frontiers of Engineering Management 2016, Volume 3, Issue 1,   Pages 30-38 doi: 10.15302/J-FEM-2016008

Abstract: The accident-prone driver who has the stable physiological, psychological, and behavioral characteristicsThe internal link between the individual characteristics and the accident proneness has been a difficultpoint in the accident prevention research.The authors selected accident-prone drivers as cases and safe drivers as controls (case-control groupIt is suggested that the accident-prone drivers may have the idiosyncrasy of susceptibility.

Keywords： accident proneness     genome-wide association study (GWAS)     dopamine (DA)     ACTH     susceptibility gene     trafficaccident epidemiology     accident prevention     traffic safety     three-dimensional model    

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Study on Inherent Safety-based Industrial Accident Risk Management Method

Wu Zongzhi

Strategic Study of CAE 2007, Volume 9, Issue 5,   Pages 46-49

Abstract:  procedural safeguard, layers of protection and the standards of function safety to reduce the accident

Keywords： inherent safety     risk management     accident prevention     safety design    

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The Hypothesis of Safety Theory

Yu Haiyong,Li Fang

Strategic Study of CAE 2006, Volume 8, Issue 10,   Pages 85-88

Abstract: Three basic types of accidents are proposed in this paper, that is, inevitable, random and man-fault accident

Keywords： safety theory     accident type     mathematical equation     accident prevention    

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The important revelation of “7·23” passenger train accident

Sun Yongfu

Strategic Study of CAE 2012, Volume 14, Issue 12,   Pages 4-9

Abstract: p style="text-align: justify;">The process and reasons of “7·23” passenger train accident

Keywords： passenger train accident     the research and development management     the access management     the emergency    

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Simulation analysis of environmental risk accident and management of high-sulfur gas field development

WANG Xiao, HAO Fanghua, ZHANG Xuan, SUN Wen, CHENG Hongguang

Frontiers of Environmental Science & Engineering 2008, Volume 2, Issue 3,   Pages 318-325 doi: 10.1007/s11783-008-0033-9

Abstract: Environmental risk of high sulfur gas field exploitation has become one of the hot spots of environmental management studies. Severe gas HS blowout accidents in recent years have shown that poor understanding and estimates of the poisonous gas movement could lead to dangerous evacuation delays. It is important to evaluate the real concentration of HS, especially in complex terrain. Traditional experiential models are not valid in the case of rough terrain, especially in low-lying areas where the gas accumulates. This study, using high sulfur content gas field of Sichuan “Pu Guang gas field” as study object and adopting objective diagnosis of wind field of land following coordinate three dimensions, applied Lagrangian Puff Model and breaking up technique of puffs to simulate the HS diffusion condition of blowout accidents produced in the high sulfur content gas field of complex terrain area. The results showed that the HS distribution did not occur mainly in low wind direction, and due to the obstruction of the mountain’s body, it accumulated in front of mountain on produced turn over, flowed around submitted jumping type distribution. The mountain waist near the hilltop and low hollow river valley site rapture points simulating contrast showed that the higher the rapture point, the better the diffusing condition of pollutant, the distribution of risk sensitive point decided piping rupture environmental risk size combining the HS diffusion result and residential area dispersing in the study area, synthetic judge located in the high rapture point environmental risk was smaller than the low hollow point, thus it was suggested to carryout laying of lining build of equal high line of higher terrain. According to simulation results, the environmental risk management measures aimed at putting down adverse effects were worked out.

Keywords： mountain ’     rapture     Lagrangian     hollow     produced    

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Oxidation performance of graphite material in reactors

LUO Xiaowei, YU Xinli, YU Suyuan

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 471-474 doi: 10.1007/s11708-008-0074-6

Abstract: influences the safety and operation of the reactor because of the impurities in the coolant and/or the accident

Keywords： ingress     accident     oxidation     coolant     moderator    

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Hierarchical porous metal-organic frameworks/polymer microparticles for enhanced catalytic degradation of organic contaminants

Frontiers of Chemical Science and Engineering 2022, Volume 16, Issue 6,   Pages 939-949 doi: 10.1007/s11705-022-2152-4

Abstract: This work reports on a simple microfluidic strategy to controllably fabricate uniform polymeric microparticles containing hierarchical porous structures integrated with highly accessible catalytic metal organic frameworks for efficient degradation of organic contaminants. Monodisperse (W1/O)/W2 emulsion droplets generated from microfluidics are used as templates for the microparticle synthesis. The emulsion droplets contain tiny water microdroplets from homogenization and water nanodroplets from diffusion-induced swollen micelles as the dual pore-forming templates, and Fe-based metal-organic framework nanorods as the nanocatalysts. The obtained microparticles possess interconnected hierarchical porous structures decorated with highly accessible Fe-based metal-organic framework nanorods for enhanced degradation of organic contaminants via a heterogeneous Fenton-like reaction. Such a degradation performance is highlighted by using these microparticles for efficient degradation of rhodamine B in hydrogen peroxide solution. This work provides a simple and general strategy to flexibly combine hierarchical porous structures and catalytic metal-organic frameworks to engineer advanced microparticles for water decontamination.

Keywords： metal-organic framework     polymer microparticle     nanocatalyst     decontamination     organic contaminant    

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Insight of chemical environmental risk and its management from the vinyl chloride accident

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 4, doi: 10.1007/s11783-023-1652-x

Abstract: The combustion of vinyl chloride (VC) after the train derailment accident in Ohio, USA in February, 2023This paper tried to analyze several issues concerning the accident, including the appropriateness ofthe VC combustion in the emergency response in this accident, the meanings of so-called “controlled combustionIn our view, this accident had surely caused environmental and health risks to some extent.Finally, this accident suggests that further efforts should be taken to bridge the gap between chemical

Keywords： Vinyl chloride     Combustion     Chemical safety management     Environmental risk     Emerging contaminants    

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Study on the transient behaviours of in-hospital neutron irradiator mark 1 reactor in accident condition

Zhu Lei,Chen Lixin,Jiang Xinbiao,Zhao Zhumin,Zhouyongmao

Strategic Study of CAE 2012, Volume 14, Issue 8,   Pages 60-63

Abstract: simulate and analyze the transient proceeding of in-hospital neutron irradiator mark 1(IHNI-1) reactor in accidentcondition.Large reactivity insertion accident and loss of coolent of pool accident are calculated andtemperature feedback limits the nuclear power to an stable level and the reactor is safe under the accident

Keywords： IHNI-1 reactor     accident condition     transient behaviours     RELAP5    

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Cesium removal from radioactive wastewater by adsorption and membrane technology

Frontiers of Environmental Science & Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11783-024-1798-1

Abstract:

● Removal of cesium from radioactive wastewater is still a challenging.

Keywords： Cesium     Adsorption     Membrane separation     Advanced liquid processing system     Fukushima nuclear accident    

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Title Author Date Type Operation

Total phosphorus accident pollution and emergency response study based on geographic information system

Aifeng Zhai, Xiaowen Ding, Lin Liu, Quan Zhu, Guohe Huang

Journal Article

Hazard and vulnerability evaluation of water distribution system in cases of contamination intrusion accidents

Kunlun XIN, Tao TAO, Yong WANG, Suiqing LIU

Journal Article

Emerging contaminant control: From science to action

Journal Article

Analytical solutions of three-dimensional contaminant transport in uniform flow field in porous media

Hongtao WANG, Huayong WU

Journal Article

EFFICIENT CONTAMINANT REMOVAL FROM LIQUID DIGESTATE OF PIG MANURE BY CHEMICAL PRECIPITATION AND CO MINERALIZATION

Journal Article

Genetic Study Identifies CBLN4 as a Novel Susceptibility Gene for Accident Proneness

Shu-lin Zhang,Hui-qing Jin,Yang Song,Wan-sheng Yu,Liang-dan Sun

Journal Article

Study on Inherent Safety-based Industrial Accident Risk Management Method

Wu Zongzhi

Journal Article

The Hypothesis of Safety Theory

Yu Haiyong,Li Fang

Journal Article

The important revelation of “7·23” passenger train accident

Sun Yongfu

Journal Article

Simulation analysis of environmental risk accident and management of high-sulfur gas field development

WANG Xiao, HAO Fanghua, ZHANG Xuan, SUN Wen, CHENG Hongguang

Journal Article

Oxidation performance of graphite material in reactors

LUO Xiaowei, YU Xinli, YU Suyuan

Journal Article

Hierarchical porous metal-organic frameworks/polymer microparticles for enhanced catalytic degradation of organic contaminants

Journal Article

Insight of chemical environmental risk and its management from the vinyl chloride accident

Journal Article

Study on the transient behaviours of in-hospital neutron irradiator mark 1 reactor in accident condition

Zhu Lei,Chen Lixin,Jiang Xinbiao,Zhao Zhumin,Zhouyongmao

Journal Article

Cesium removal from radioactive wastewater by adsorption and membrane technology

Journal Article