沸石SBR处理氧化铁红废水的部分亚硝化中试研究
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王永庆,汪晓军,陈小珍,陈晓坤,陈静
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Pilot study on partial nitrification of iron oxide red wastewater in zeolite sequencing batch reactor
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Yongqing Wang,Xiaojun Wang,Xiaozhen Chen,Xiaokun Chen,Jing Chen
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表2 试验设计方案
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| 试验阶段 | 试验时间/d | 换水量/L | 初始NH4+-N均值/（mg·L-1） | 曝气量/（m3·h-1） | 曝气时间/h | 碱度投加比（δ） | 分步投加碳酸钠/次 | | Ⅰ | 1~3 | 30 | 300 | 0.375 | 4 | 4/1 | 1 | | Ⅱ | 4~11 | 40 | 400 | 0.55 | 6 | 4.3/1 | 1 | | Ⅲ | 12~31 | 50 | 447 | 0.725 | 7 | 4.3/1 | 2 | | Ⅳ | 32~44 | 60 | 473 | 0.915 | 9 | 4.4/1 | 3 | | Ⅴ | 45~50 | 70 | 509 | 1.17 | 9.5 | 4.4/1 | 3 | | 51~55 | 70 | 509 | 1.17 | 9.5 | 4.4/1 | 3 |
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