摘要
用直接活性污泥法完成了各反应器的污泥驯化启动 .二级SBR工艺主要由硝化SBR和反硝化SBR反应器构成 ,其中硝化SBR反应器采用悬浮生长法和固定生物膜法两种工艺作对比试验 .结果表明 ,后者较前者具有更大的NH3-N容积负荷 ,最大可达 76 6 .5 4mgL-1d-1;而且能节省碱的消耗量 11.0 %～ 38.7%和反硝化所需碳源量为 30 %～ 40 % .在tHR为 2 4h的条件下 ,二级SBR法能处理 ρIn(NH3-N)为 6 0 0～ 76 0mgL-1的化工废水 ,使NH3-N和TN的去除率分别为 98.5 %和 98%以上 ,显示了对高浓度的NH3-N去除的较大潜力 .图 2表 7参
The treatment of chemical industrial wastewater containing high concentration of NH 3-N was studied with a two-stage SBR process. The reactors were started by the direct activated sludge. The two-stage SBR process is composed of nitrification SBR and denitrification SBR reactors, and suspended sludge and fixed biofilm were used in nitrification SBR system for comparison. The result suggested that the later had a higher NH 3-N volume loading of 766.54 mg L -1 d -1 and the consumption of alkali and carbon resource was 11.0%～38.7% and 30%～40% less than that of the former. Under the operating condition of t HR 24 h, the two-stage SBR process could treat the chemical industrial wastewater containing high concentration of NH 3-N of 600～760 mg.L -1 , and the removal rate of NH 3-N,TN was more than 98.5% and 98%. Fig 2, Tab 7, Ref 7
出处
《应用与环境生物学报》
CAS
CSCD
2000年第6期581-585,共5页
Chinese Journal of Applied and Environmental Biology
关键词
SBR法
废水处理
硝化
氨
氮
化工废水
two-stage SBR process
wastewater treatment
nitrification
denitrification
