CAJ | 학술논문

为了对再生水灌区调蓄工程选址提供依据,该文通过建立5个不同深度监测井研究了再生水灌区调蓄工程对地下水盐分的影响,再生水经包气带入渗后渗滤液氯离子、全盐、总硬度含量有所增加,12 m包气带厚度对总氮、总磷去除率达到97.3%和99.0%以上,但是渗滤液中全盐、总氮、氮磷、总硬度等含量指标接近地下水背景值,未发现再生水调蓄工程蓄水导致地下水水质发生明显变化,说明研究区域再生水渗滤进入地下水对盐分的影响与其他补给水源的影响效果无显著差异.再生水灌区调蓄工程应建设在具有包气带岩性粗细相间、防污性能较好的区域.
위료대재생수관구조축공정선지제공의거,해문통과건립5개불동심도감측정연구료재생수관구조축공정대지하수염분적영향,재생수경포기대입삼후삼려액록리자、전염、총경도함량유소증가,12 m포기대후도대총담、총린거제솔체도97.3%화99.0%이상,단시삼려액중전염、총담、담린、총경도등함량지표접근지하수배경치,미발현재생수조축공정축수도치지하수수질발생명현변화,설명연구구역재생수삼려진입지하수대염분적영향여기타보급수원적영향효과무현저차이.재생수관구조축공정응건설재구유포기대암성조세상간、방오성능교호적구역.
The research of irrigation regulation and storage engineering on groundwater salinity was investigated in reclaimed water irrigation district (RWID) of Beijing for site selection. Five research wells with different depths around regulation and storage engineering were drilled to monitor water quality changes. Chloride ion of ieachate, total nitrogen, total phosphors,hardness of water samples increased, and removal rate of total nitrogen, total phosphorus of water samples decreased by 97.3%and 99.0%, respectively in 12-meter vadose zone after infiltration, and the measured parameters were close to groundwater background values. Measured results indicated that groundwater was not polluted by reclaimed water infiltration, and there was no significant difference between the effect of reclaimed water and other water resources infiltration on groundwater. The vadose comprising of loam, sand and clay can prevent groundwater pollution for site selection of regulation and storage engineering in RWID.