【摘要】：為研究不同容積交換率對同步亞硝化-厭氧氨氧化與反硝化工藝(SNAD)污泥顆�；胺�(wěn)定運行的影響,采用容積交換率分別為37.5%(R1)和75%(R2)的SBR進行對比實驗.結果表明,R1僅用36 d就實現(xiàn)了顆�；�,比R2快1/3,且顆�；^程中R1的污泥流失較小;R1總氮去除速率(RNR)、單位MLVSS好氧氨氧化活性(RAO)和厭氧氨氧化活性(R_(AN))分別為0.356 g·L~(-1)·d~(-1),0.113 0和0.080 9 g·g~(-1)·d~(-1);R2的R_(NR)、R_(AO)和R_(AN)分別為0.248 g·L~(-1)·d~(-1),0.093 6和0.070 5 g·g~(-1)·d~(-1).由此表明:較小的容積交換率有利于減少絮體流失,從而加快SNAD污泥的顆�；M程;有利于提高AOB與AnAOB的活性以及抑制NOB活性,從而實現(xiàn)SNAD工藝穩(wěn)定高效的去除效果.
[Abstract]:In order to study the effect of volume exchange rate on granulation and stable operation of (SNAD) sludge in simultaneous nitrification-anaerobic ammonia oxidation and denitrification process, a comparative experiment was carried out with SBR with volumetric exchange rate of 37.5% (R1) and 75% (R2), respectively. The results showed that the granulation of R1 was achieved in only 36 days. 姣擱2蹇，

本文編號：2199064