CAJ | 학술논문

利用三维模拟槽研究了地下水曝气技术(AS)使用过程中，含水层介质粒径、曝气压力与影响半径(ROI)、气体流量、气流流型之间的关系。结果表明：曝气过程中 ROI 随曝气压力的上升而增大；气流质量流量随曝气压力的增加而增大，压力较大时二者呈线性关系；气流流型由介质粒径决定，与曝气压力无关。介质粒径为1~2mm时气流呈倒圆锥形，介质粒径为4~8mm时气流呈抛物线形。
이용삼유모의조연구료지하수폭기기술(AS)사용과정중，함수층개질립경、폭기압력여영향반경(ROI)、기체류량、기류류형지간적관계。결과표명：폭기과정중 ROI 수폭기압력적상승이증대；기류질량류량수폭기압력적증가이증대，압력교대시이자정선성관계；기류류형유개질립경결정，여폭기압력무관。개질립경위1~2mm시기류정도원추형，개질립경위4~8mm시기류정포물선형。
This paper presented the results of a series of laboratory studies on air sparging (AS) within a three-dimensional aquifer simulation tank. The study investigated the effects of particle size and air injection pressure on influence radius (ROI), gas flow rate and patterns during air sparging. The test results showed that improving injection pressure could increase ROI during AS. Air mass flow rate increased linearly with the increase of injection pressure after exceeding a certain sparging pressure. The air flow patterns were determined by the sizes of porous media regardless of the injection pressure. The shape of air flow was conical when particle size was 1-2mm, and parabolic when particle size was 4-8mm.