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常温低基质厌氧氨氧化ASBR反应器的快速启动
Quick start-up of low-substrate Anammox ASBR reactor at normal temperature
【摘要】 采用低基质模拟废水〔NH4+-N、NO2--N分别为(25±0.4)、(33±0.6)mg/L〕,在温度为(23±0.5)℃的条件下,研究了厌氧氨氧化ASBR反应器的快速启动。第Ⅰ阶段HRT为24 h,pH不控制,菌体自溶期出水NH4+-N为69 mg/L,活性停滞期出水NH4+-N与进水几乎相等;第ⅡⅢ阶段,菌体处于活性提高期,HRT分别为12、8 h,pH控制为8.08.2,出水NH4+-N降低到1.6 mg/L,NO2--N均先升高后降低;第Ⅳ阶段HRT为4 h,pH控制为8.08.2,出水NH4+-N和NO2--N均低于1 mg/L,TN去除负荷为352.3 mg/(L·d),△m(NH4+-N)∶△m(NO2--N)∶△m(NO3--N)=1∶(1.33±0.02)∶(0.26±0.02),反应器启动成功。
【Abstract】 Using low substrate simulated wastewater(NH4+-N and NO2--N are(25±0.4)mg/L and(33±0.6)mg/Lrespectively),at temperature(23±0.5)℃,the rapid start-up of anaerobic ammonium oxidation(Anammox)processanaerobic sequencing batch reactor(ASBR)has been studied. In Stage Ⅰ,HRT is 24 h and p H uncontrolled,inthalli autolysis phase effluent NH4+-N is 69 mg/L,in activity stagnate phase the effluent and influent NH4+-N arealmost the same. In Stage Ⅱ-Ⅲ,the thalli is in up-going period,their HRT are 12 h and 8 h,respectively,andp H is controlled at 8.0-8.2,the effluent NH4+-N decreases to 1.6 mg/L,while NO2--N increases first,then decreases.In StageⅣ,HRT is 4 h,and p H controlled at 8.0-8.2,the effluent NH4+-N and NO2--N both are lower than 1 mg/L,and the TN removing load is 352.3 mg/(L·d),△m(NH4+-N)∶△m(NO2--N)∶△m(NO3--N)=1∶(1.33 ± 0.02)∶(0.26±0.02),indicating that the Anammox ASBR reactor is successfully started up.
【Key words】 low substrate; Anammox; anaerobic sequencing batch reactor(ASBR); quick start-up;
- 【文献出处】 工业水处理 ,Industrial Water Treatment , 编辑部邮箱 ,2017年02期
- 【分类号】X703
- 【被引频次】26
- 【下载频次】464