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Hydrus与visual modflow在苯迁移转化过程中的综合模拟研究

工业安全与环保 2025年第2期51卷 107-110页

作者：李瑞云山西丽浦创新科技有限公司山西晋中030600

用数值模拟法研究有机污染物在土壤地下水中迁移转化预测极其重要,以太原市某粗苯深加工和储存遗留地块为研究对象,结合Hydrus与modflow,模拟污染因子苯在包气带和饱和带的迁移转化路径。结果表明,纵向上苯在9年后迁移至地下水,模拟结... 详细信息

用数值模拟法研究有机污染物在土壤地下水中迁移转化预测极其重要,以太原市某粗苯深加工和储存遗留地块为研究对象,结合Hydrus与modflow,模拟污染因子苯在包气带和饱和带的迁移转化路径。结果表明,纵向上苯在9年后迁移至地下水,模拟结果与实际观测相符;水平方向上,苯进入地下水后经5年迁移,影响面积约2911 m^(2),未超出厂区下游边界,同实际观测结果。案例表明Hydrus与modflow综合模拟方法在有机污染物迁移转化过程中具有较强的可操作性,实现从包气带到地下水系统的全过程模拟,提高模拟精度和效率,降低治理成本,对环境治理工作具有较高的指导意义。

关键词：苯 Hydrus visual modflow 污染物迁移转化

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基于visual modflow的某加油站苯系物迁移预测

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吉林水利 2025年第1期 56-61页

作者：王硕孙颖娜黑龙江大学水利电力学院黑龙江哈尔滨150080 黑龙江大学寒区地下水研究所黑龙江哈尔滨150080

加油站作为石油气等燃料的重要储存场所,开展其地下水污染预测报告,对水环境污染防治具有重要意义。本文利用多元综合数据,建立目标加油站的visual modflow地下水数值模型,通过设置污染物泄露情景,对模型进行数值模拟和溶质运移模拟。... 详细信息

加油站作为石油气等燃料的重要储存场所,开展其地下水污染预测报告,对水环境污染防治具有重要意义。本文利用多元综合数据,建立目标加油站的visual modflow地下水数值模型,通过设置污染物泄露情景,对模型进行数值模拟和溶质运移模拟。结果表明:瞬时泄露第100天时,形成影响面积28484.9m^(2),最远迁移距离为114.4m,模型区中心最大污染物浓度为0.008mg/L;瞬时泄露第1000天时,形成影响面积35123.3m^(2),最远迁移距离为186.2m,模型区的最大污染浓度为0.005mg/L。持续泄露第100天时,模型区附近部分区域地下水中苯浓度超过Ⅲ类水限制浓度,形成超标区域17208.3m^(2),形成影响面积48035.2m^(2),污染晕最远边界距离模型区中心位置为183.1m,污染羽最远边界距离中心位置为91.2m;持续泄露第1000天时,污染晕最远边界距离模型区中心位置为291.7m,污染羽最远边界距离中心位置为210.3m,形成超标区域21686.8m^(2),形成影响面积74610.2m^(2)。泄露物中的苯系物对地下水体的污染较难恢复,通过模型的模拟预测,可为加油站站点及周边范围的水污染防治问题提供参考。

关键词：水资源概念模型数值模拟 visual modflow

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Application of visual modflow to assess the Sewage Plant accident pool leakage impact on groundwater in the Guanting Reservoir area of Beijing

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中国高等学校学术文摘·地球科学 2010年第3期4卷 320-325页

作者： Weifang SHI Weihua ZENG Bin CHEN State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University Beijing 100875 China

In this paper, visual modflow is used to simulate groundwater flow and transport within the study area based on a certain scenario, assessing the leakage impact of a Sewage Plant accidental pool on groundwater using NH3-N as the assessment factor. In the model constructed, soil absorption and degradation was taken into account; the adsorption process of NH3-N adopted the Langmuir equation and the degradation was simplified as a first-order dynamic reaction. The leakage process was defined as a recharge with contaminants in the case that where there are two accidents happening to the Sewage Plant within a one month interval. The result of the model indicated that the NH3-N concentration of groundwater increased sharply when the Sewage Plant was malfunctioning. The peak of NH3-N concentration under the accident pool was about 8.0×10-5mg/L at the first accident. When the second accident happened, the NH3-N concentration increased to a maximum of about 1.1 × 10-4 mg/L. At a location of about 20 m from the accident pool, the concentration declined to about one sixth of the center, which demonstrated that the NH3-N concentration increase caused by leakage of the accident pool was little, and the spatial influence also was small. The paper provides a method of dealing with the transport of physically and chemically reactive substances in groundwater with visual modflow and assessing the Sewage Plant accident pool leakage impact on groundwater quantitatively.

关键词： groundwater leakage visual modflow adsorption dynamic reaction

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Quantitative analysis and modeling of groundwater flow using visual modflow: a case from subtropical coal mine, northwest Bangladesh

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ENVIRONMENT DEVELOPMENT AND SUSTAINABILITY 2024年第5期26卷 12971-12993页

作者： Khan, M. Selimul Hasnian Haque, Md. Emdadul Ahmed, Mohd. Mallick, Javed Islam, Abu Reza Md. Towfiqul Fattah, Md. Abdul Begum Rokeya Univ Dept Disaster Management Rangpur 5400 Bangladesh King Khalid Univ Dept Civil Engn Coll Engn Abha Saudi Arabia Khulna Univ Engn & Technol Dept Urban & Reg Planning Khulna 9203 Bangladesh Daffodil Int Univ Dept Dev Studies Dhaka 1216 Bangladesh

Despite being a vital agricultural zone and livable land for millions of people, the northwest region of Bangladesh is facing a scarcity of groundwater, which has become a major environmental stress in recent years. To this end, the present study intends to evaluate the current groundwater condition and simulate it to predict groundwater flow in the Phulbari and Parbatipur upazilas in the Dinajpur district of subtropical coal mine, northwest Bangladesh, by applying the visual modflow model. Water table data was analyzed to assess the linear trends of groundwater levels. The exploration of coal mining influenced the groundwater resources in the study area, where the groundwater table declined at a rate of 0.142 m/year. During the last 35 years (1985-2020), the groundwater table decreased by 2.28 m at Parbatipur Upazila. In Phulbari Upazila, the water table has been declining at a rate of 0.201 m/year and has declined by 4.58 m over the last 35 years. The average recharge and discharge of 658,207.56 m(3)/day and 658,209.81 m(3)/day, respectively, indicate a deficit in recharge of 2.25 m(3)/day or 2250 L/day in the study area. The prediction results show that the shortage of groundwater will increase to 246,375,000 L annually by 2050. The progressive decline of the groundwater table is possibly due to a lack of replenishment, overexploitation of groundwater resources, and underground coal mining impacts. Overall, the study will help in policy planning for sustainable water resource management, waste supply, environmental protection and disaster preparedness.

关键词： Groundwater modeling visual modflow Water level Quantitative analysis Coal mining Trend analysis

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A spatio-temporal three-dimensional conceptualization and simulation of Dera Ismail Khan alluvial aquifer in visual modflow: a case study from Pakistan

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ARABIAN JOURNAL OF GEOSCIENCES 2016年第2期9卷 1-9页

作者： Qadir, Anwar Ahmad, Zulfiqar Khan, Tahseenullah Zafar, Mohammad Qadir, Atwar Murata, Mamoru Univ Haripur Dept Geol Hattar Rd Haripur Pakistan Bahria Univ Dept Earth & Environm Sci Shangrilla RdSect E-8 Islamabad Pakistan Quaid i Azam Univ Dept Earth Sci Islamabad Pakistan Riphah Int Univ Dept Basic Sci Islamabad Pakistan Natl Univ Corp Naruto Univ Educ Fac Sci Dept Geosci Naruto Tokushima 7728502 Japan

Dera Ismail Khan (DIK) is situated in the Lower Indus Basin of Pakistan. The land use has been changed in the canal command area due to irrigation activities near the Indus River. To check the current status and predict the groundwater levels in the area, the unconfined aquifer has been simulated in visualmodflowfor a period of 35 years, i.e., from 1985 to 2020. The 2900-km(2) area has been modeled with a grid of 500 by 500 m and the depth set to 100 m. The aquifer in the study area has been divided vertically and laterally into three and ten zones, respectively, for the characterization. Water wells and streams were used as the sinks and hydrologic boundaries, respectively. The model was successfully calibrated in steady and the non-steady state. The simulation revealed that the whole simulation can be divided into two phases, i.e., before and after the construction of the Chashma Right Bank Canal (CRBC), whereas the results were summarized in the form of water table depth maps and groundwater budget calculations. To determine the groundwater sustainability, a conjunctive use scenario has been employed to simulate the aquifer dynamics till 2020. The simulation revealed incremental drawdowns till the end.

关键词： visual modflow DIK Water table depth (WTD) Indus River

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Analysis of Groundwater Flow for Saltwater Interaction Range Using visual modflow: A Case Study of Coastal Belt in Srikakulam District of Andhra Pradesh, India

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ASIAN JOURNAL OF WATER ENVIRONMENT AND POLLUTION 2022年第4期19卷 91-97页

作者： Rao, G. Venkata Kumar, P. Shiva Srinivas, K. Anurag Univ Dept Civil Engn Hyderabad India Vignans Inst Informat Technol Visakhapatnam Andhra Pradesh India

Groundwater flow modeling is one of the important tools to know the direction and magnitude of groundwater flow along the coastal aquifer. A study carried out in the coastal belt of Srikakulam showed a region where there is a probable mixing of ground water with the sea water. In the present investigation, the ground water flow and velocity are determined by using modflow Software. The entire study area has been divided into small grids. The wells are identified and located in eight lines perpendicular to the coastal belt. In this investigation, 97 existing wells are selected for carrying out the study. The distribution of the hydraulic head was estimated through a 20-year simulation. The observed results indicate that a considerable advance in seawater intrusion can be expected in the coastal aquifer of the study area. It is concluded that the average velocity of ground water in the Srikakulam coastal belt is 1.1 m/day. The results help to determine the groundwater flow channels and also help to explain the ground water recharge and flow areas in the aquifer.

关键词： Groundwater modeling visual modflow steady-state hydraulic heads ground water flow velocity

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Application of visual modflow to Numerical Simulation of Multi-level Groundwater

Application of Visual MODFLOW to Numerical Simulation of Mul...

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1st International Conference on Energy and Environmental Protection (ICEEP 2012)

作者： Pan, Jun Han, Chunyang Kang, Ranran Li, Shixiao Shenyang Jianzhu Univ Shenyang Liaoning Peoples R China

ISBN: (纸本)9783037854167

In order to study the vary circumstance of underground water level of multi-level groundwater. This paper takes example for the Shenyang Eco-Tech Development Zone of Liaoning Province. Firstly, a conceptual model is built in this paper. Secondly, the groundwater system is numerically simulated and forecast with the internationally standard visual modflow. According the results of numerical simulation, It is proved that between the underground water level's calculating result and observation result has a higher fitting degree, and the results testify that the mathematical model established in this paper is reasonable. Conclusion the validated mathematical model can be used to simulation and forecast of the underground water level in the research area.

关键词： visual modflow numerical simulation multi-level groundwater underground water level the Shenyang Eco-Tech Development Zone

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Based on the visual modflow surge water numerical simulation study

Based on the Visual Modflow surge water numerical simulation...

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2nd International Conference on Advanced Engineering Materials and Technology (AEMT)

作者： Wang Li Liu Ye Liaoning Tech Univ Coll Resources & Environm Engn Fuxin 123000 Peoples R China Inner Mongolia Geol Engn Iimited Co Hohhot 010011 Peoples R China

ISBN: (纸本)9783037854488

The detailed analysis in shengli coalfield, two East open-pit coal mine geological, hydro-geological characteristics and groundwater recharge, Runoff, drainage patterns. And on the analysis results of this analysis are mining areas of conceptual models of hydrogeology, numerical calculation method based on visual modflow first mining district 4 coal mine water water-bearing rock group. This article by multiple regression method using logging parameter estimation of permeability coefficient, solved in numerical simulation used in hydrological study on permeability coefficient of hole to determine does not meet the need of traditional issues.

关键词： Flowing visual modflow Multiple linear regression Numerical simulation

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visual modflow, solute transport modeling, and remote sensing techniques for adapting aquifer potentiality under reclamation and climate change impacts in coastal aquifer

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SCIENTIFIC REPORTS 2024年第1期14卷 1-18页

作者： Abd El Ghany, Moaz M. El-Hadidy, Shaimaa M. Sakr, Sameh A. Korany, Ezzat A. Morsy, Samah M. Ain Shams Univ Fac Sci Geol Dept Cairo 11566 Egypt Minist Irrigat & Water Resources MWRI Natl Water Res Ctr Giza Egypt

Global environmental changes, such as climate change and reclamation alterations, significantly influence hydrological processes, leading to hydrologic nonstationarity and challenges in managing water availability and distribution. This study introduces a conceptual underpinning for the rational development and sustainability of groundwater resources. As one of the areas intended for the development projects within the Egyptian national plan for the reclamation of one and a half million acres;hundreds of pumping wells were constructed in the Moghra area to fulfill the reclamation demand. This study investigates the long-term impacts of exploiting the drilled pumping wells under climate change. The approach is to monitor the groundwater levels and the salinity values in the Moghra aquifer with various operational strategies and present proposed sustainable development scenarios. The impact of global warming and climate change is estimated for a prediction period of 30 years by using satellite data, time series geographical analysis, and statistical modeling. Using modflow and Solute Transport (MT3DMS) modules of visual modflow USGS 2005 software, a three-dimensional (3D) finite-difference model is created to simulate groundwater flow and salinity distribution in the Moghra aquifer with the input of forecast downscaling (2020-2050) of main climatic parameters (PPT, ET, and Temp). The optimal adaptation-integrated scenario to cope with long-term groundwater withdrawal and climate change impacts is achieved when the Ministry of Irrigation and Water Resources (MWRI) recommends that the maximum drawdown shouldn't be more significant than 1.0 m/ year. In this scenario, 1,500 pumping wells are distributed with an equal space of 500 m, a pumping rate of 1,200 m3/day and input the forecast of the most significant climatic parameters after 30 years. The output results of this scenario revealed a drawdown level of 42 m and a groundwater salinity value of 16,000 mg/l. Climate ch

关键词： Groundwater development visual modflow Solute Transport (MT3DMS) Climate change Global warming

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visual modflow与GMS研究综述

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人民黄河 2021年第4期43卷 89-93,130页

作者：李亚娇张强李家科王毅凡西安科技大学建筑与土木工程学院陕西西安710054 西安理工大学省部共建西北旱区生态水利工程国家重点实验室陕西西安710048

为选择合适的地下水模拟软件,从而更好地解决实际地下水问题,从visual modflow和GMS的功能、数学模型、离散形式、剖分形式、建模方法、模拟精度方面对比分析,论述了modflow模块改进以及visual modflow和GMS的应用进展。研究表明:相比Vi... 详细信息

为选择合适的地下水模拟软件,从而更好地解决实际地下水问题,从visual modflow和GMS的功能、数学模型、离散形式、剖分形式、建模方法、模拟精度方面对比分析,论述了modflow模块改进以及visual modflow和GMS的应用进展。研究表明:相比visual modflow,GMS功能更加强大,在模型离散形式和网格剖分以及建模方法上具有一定优势;两者数学模型相同,边界条件设置各有利弊,模拟精度相当;visual modflow和GMS应用范围广泛,可为解决实际地下水问题提供参考,未来在模型功能、数据收集与处理、多领域交叉耦合模拟方面还有进一步发展空间。

关键词：地下水数值模拟 visual modflow GMS 有限差分

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