CAJ | 학술논문

建立了2套不同填料的地下渗滤系统装置净化生活污水,1号装置由纯土壤装填,2号装置由土壤与砂分层装填,比较了2套装置对污染物的去除效果.2套装置运行了6个月,水力负荷为5 cm·d~(-1)时每天进水4次,10 cm·d~(-1)及20cm·d~(-1)运行时每天进水8次.在水力负荷10 cm·d~(-1)下运行,对化学需氧量(COD)、总磷、NH_4~+ -N、总氮的去除率1号装置分别为80.7%,38.9%,48.7%,43.5%,2号装置分别为88.4%,87.2%,98.2%,24.9%;在水力负荷20 cm·d~(-1)下运行,1号装置发生堵塞现象无法运行,而2号装置对COD、总磷、MH_4~+ -N、总氮的去除率分别为87.1%,56.1%,98.0%,28.9%,对COD及NH_4~+ -N仍保持了良好的去除效果,并且保持了良好的水力渗透性能.研究结果表明,渗滤系统内部填料的改善提高了地下渗滤系统的运行水力负荷及其抗堵塞性能.
건립료2투불동전료적지하삼려계통장치정화생활오수,1호장치유순토양장전,2호장치유토양여사분층장전,비교료2투장치대오염물적거제효과.2투장치운행료6개월,수력부하위5 cm·d~(-1)시매천진수4차,10 cm·d~(-1)급20cm·d~(-1)운행시매천진수8차.재수력부하10 cm·d~(-1)하운행,대화학수양량(COD)、총린、NH_4~+ -N、총담적거제솔1호장치분별위80.7%,38.9%,48.7%,43.5%,2호장치분별위88.4%,87.2%,98.2%,24.9%;재수력부하20 cm·d~(-1)하운행,1호장치발생도새현상무법운행,이2호장치대COD、총린、MH_4~+ -N、총담적거제솔분별위87.1%,56.1%,98.0%,28.9%,대COD급NH_4~+ -N잉보지료량호적거제효과,병차보지료량호적수력삼투성능.연구결과표명,삼려계통내부전료적개선제고료지하삼려계통적운행수력부하급기항도새성능.
Two apparatus were established in a pilot laboratory with two different mediums,Apparatus Ⅰ loaded bypure soil, Apparatus Ⅱ loaded by soil and sand indelamination. The removal effects of contamination of two apparatus were compared. During 6 months' operation, each apparatus was dosed 4 times daily with municipal wastewaterat 5 cm · d~(-1) and 8 times at 10 cm · d~(-1) and 20 cm · d~(-1). In10 cm · d~(-1), the removal efficiency of Chemical OxygenDemand(COD), TP, NH_4~+ - N, TN were 80.7%, 38.9%,48.7%, 43.5% in Apparatus Ⅰ, respectively, and 88.4%,87.2% ,98.2%, 24.9% in Apparatus Ⅱ, respectively; in 20cm· d~-1, the removal efficiency of COD, TP, NH_4~+ -N, TN were 87. 1%, 56. 7%, 98. 0%, 28. 9% in Apparatus Ⅱ,respectively; but a jam occurred in Apparatus Ⅰ. The results show that the hydraulic permeability of soil and sand loaded in delamination apparatus is superior to that of Apparatus Ⅰ ,and the COD, NH_4~+ - N removal efficiency of Apparatus Ⅱ isperfect. The hydraulic permeability and anti-blockage capability of subsurface wastewater infiltration system improve when mediums are optimized.