短程硝化-反硝化中铁炭填料对污水中氮、磷去除的研究

摘要

Removal of nitrogen and phosphorus from domestic wastewater by shortcut nitrification‐denitrification with iron‐carbon fillers was researched .The experimental results show that the process could quickly accumulation nitrite by adjusting pH to 7 .8 - 8 .7 and DO to 3 - 5 mg/L in aerobic reactor .The accumulation rate of nitrite is above 45% .The removal of NH+4 ‐N ,COD ,P in the system by the short‐cut nitrification‐denitrification process is studied also .At stable conditions ,the removal rate of NH +4 ‐N ,COD ,P are 92% ,88% ,90 .5% ,respectively .%研究了用短程硝化‐反硝化系统生物反应器去除废水中的氮、磷。在短程硝化‐反硝化系统生物反应器好氧区投加铁炭填料，调节反应器内好氧区的 pH（7．8～8．7）和 DO（3～5 mg／L），可使亚硝酸盐快速累积，其累积率可达45％以上；同时，该系统对 NH ＋4‐N 、COD 、TP 去除率在稳定工况下分别可达92％、88％、90．5％。