CAJ | 학술논문

微生物的硝化与反硝化作用是人工湿地脱氮的主要途径，如何调控与优化湿地沿程溶解氧浓度和污水碳氮比，对于提高人工湿地脱氮效果至关重要。为此，在人工湿地前端埋设曝气管、后端增设碳源投加管，构建了一种人工湿地强化脱氮系统，并选择曝气速率、曝气运行/停止时间比、碳源投加量、进水方式进行正交试验，开展了人工湿地碳氧联合调控脱氮研究。结果表明，各因素的影响大小依次为：曝气运行/停止时间比＞曝气速率＞碳源投加量＞进水方式；最优运行条件为：曝气速率为2．5 L· h -1，曝气运行/停止时间比为8 h/16 h，碳源投加量为0．025 g · L -1，进水方式为0．25 L ×4。
미생물적초화여반초화작용시인공습지탈담적주요도경，여하조공여우화습지연정용해양농도화오수탄담비，대우제고인공습지탈담효과지관중요。위차，재인공습지전단매설폭기관、후단증설탄원투가관，구건료일충인공습지강화탈담계통，병선택폭기속솔、폭기운행/정지시간비、탄원투가량、진수방식진행정교시험，개전료인공습지탄양연합조공탈담연구。결과표명，각인소적영향대소의차위：폭기운행/정지시간비＞폭기속솔＞탄원투가량＞진수방식；최우운행조건위：폭기속솔위2．5 L· h -1，폭기운행/정지시간비위8 h/16 h，탄원투가량위0．025 g · L -1，진수방식위0．25 L ×4。
Nitrification and denitrification of microorganism is the main way for nitrogen removal in constructed wetlands,so it is very important for improving nitrogen removal to optimize oxygen distribution and ratio of carbon and nitrogen within wetlands.Therefore,a new enhancing nitrogen removal constructed wetland was built where there were aeration pipes at the bottom of nitrification chamber and carbon addition pipes in the denitrification chamber.Four operating parameters such as aeration rate (q),ratio of aeration and stop time (tR/tS),mass of carbon addition(m) and way of influent (w) were chosen to undertake the orthogonal ex -periment in order to get optimum operating condition of the constructed wetland .The results showed that the comparison of four operating parameters influencing pollutants removal efficiency were as follows:tR/t S>q>m>w.The optimum operating conditions were obtained as follows :q =2.5 L· h -1,tR/tS =8h/16h,m =0.025 g · L -1,w=0.25 L ×4.