CAJ | 학술논문

地下水铁离子浓度超标，将严重影响居民饮用水安全。认识地下水铁离子的运移规律，可为保护地下水饮用水源提供依据。本文基于溶质运移理论，建立同江河防护区内地下水铁离子运移概化模型，分析在同江河防护区与水库库区之间设置防护层与不设置防护层二种情况下铁离子的运移规律。分析表明，不设置防护层工况，铁离子浓度的变化呈现"钩状"形态发展，且运移速度快，扩散范围广；设置防护层工况，浓度的变化呈现“舌状”发展，运移速度、扩散范围远小于不设置防护层的情况；防护层会有效延缓铁的运移速度，限制运移范围，但不会从根本上解决铁的运移。
지하수철리자농도초표，장엄중영향거민음용수안전。인식지하수철리자적운이규률，가위보호지하수음용수원제공의거。본문기우용질운이이론，건립동강하방호구내지하수철리자운이개화모형，분석재동강하방호구여수고고구지간설치방호층여불설치방호층이충정황하철리자적운이규률。분석표명，불설치방호층공황，철리자농도적변화정현"구상"형태발전，차운이속도쾌，확산범위엄；설치방호층공황，농도적변화정현“설상”발전，운이속도、확산범위원소우불설치방호층적정황；방호층회유효연완철적운이속도，한제운이범위，단불회종근본상해결철적운이。
The overproof iron ionic concentration in the ground water which is used as the drinking water source is detrimental to residents' drinking water safety. Thus, studying its migration law could support the protection work of ground water which is used as the drinking water source. This paper aims to construct the iron ionic migration generalized model of ground water within the Tongjiang River protective zone so as to analyse the migration law of iron ions under the conditon that protective layers are installed or not between the Tongjiang protective zone and the reservoir area of Xiajiang Water Control Project . The results indicates that without protective layers, variation of iron ionic concentration appears to be a hook-like form of development with fast migration velocity and broad diffusion. Yet, with protective layers, variation appears to be a ligulate form with much slower speed and smaller diffusion range. Although the protective layers would effectively postpone the migration speed of iron ions and limit their migaration range, they could never solve the problem of iron ionic migration ultimately.