CAJ | 학술논문

从生态学理论出发,以健全人工湿地生态系统为思路,通过引入爱胜蚯蚓使食物链"加环",强化水生动物环节,得出该工艺在0.3m~3/(m~2·d)的水力负荷下稳定运行后,处理农村生活污水的COD、TN和TP平均出水浓度分别为41.02mg/L、12.58mg/L和0.44mg/L,出水水质均低于国家城镇污水处理厂排放标准(GB18918-2002)一级排放A标准.同时蚯蚓对改善湿地内部溶解氧状况起到了一定的作用.
종생태학이론출발,이건전인공습지생태계통위사로,통과인입애성구인사식물련"가배",강화수생동물배절,득출해공예재0.3m~3/(m~2·d)적수력부하하은정운행후,처리농촌생활오수적COD、TN화TP평균출수농도분별위41.02mg/L、12.58mg/L화0.44mg/L,출수수질균저우국가성진오수처리엄배방표준(GB18918-2002)일급배방A표준.동시구인대개선습지내부용해양상황기도료일정적작용.
Based on the ecology theory, the improved wetland ecosystem was studied, with addition of Eisenia foetida to the food chain and strengthening of link of aquatic animals. It concludedthat Eisenia foetida can improve the condition of DO in wetland. Under hydraulic load of 0.3m~3/(m~2·d), averageeffluent concentration of COD, TN and TP were 41.02mg/L, 12.58mg/L and 0.44mg/L respectively, with the effluent waterquality satisfactory to discharge standard for urban wastewater treatment plant of Grade I of GB18918-2002.