ANAEROBIC-AEROBIC TREATMENT OF HIGH-STRENGTH AMMONIUM WASTE-WATER - NITROGEN REMOVAL VIA NITRITE
ANAEROBIC-AEROBIC TREATMENT OF HIGH-STRENGTH AMMONIUM WASTE-WATER - NITROGEN REMOVAL VIA NITRITE
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DOI：
10.2166/wst.1992.0542
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发表时间：
1992-01-01
影响因子：
2.7
通讯作者：
SEYFRIED, CF
中科院分区：
文献类型：
--
作者：
ABELING, U;SEYFRIED, CF
两级厌氧-好氧处理优先用于高浓度工业废水的净化。在反硝化脱氮方面，厌氧预处理过程中有机碳的深度还原存在问题，通过亚硝酸盐硝化/反硝化新工艺在半技术经验上可行，运行安全性高。与通过硝酸盐的反硝化相比，碳消耗量仅为60%。调节该过程的基本参数是反应器中游离氨的浓度。浓度为1 - 5 mg NH3/l时，可抑制硝化作用，但不抑制亚硝化作用。通过连续测定NH_4 ~-和pH值来控制氨的含量。反硝化作用的抑制极限为0.13 mg HNO 2/l。
The two-stage anaerobic-aerobic treatment is applied by preference for the purification of high-concentrated industrial wastewaters. With regard to the elimination of nitrogen compounds by denitrification the far-reaching reduction of organic carbon during the anaerobic pre-treatment is problematic.A new process of nitrification/denitrification via nitrite was found to be available in half-technical experiences with high operation security. The carbon consumption amounts only to 60 % in comparison with denitrification via nitrate. The essential parameter for regulating the process is the concentration of free ammonia in the reactor. Concentrations of 1 to 5 mg NH3/l inhibit the nitratation but not the nitritation. The content of ammonia was controlled by means of continuous NH4- and pH-measuring. The inhibition limit for denitrification was found to be at 0.13 mg HNO2/l.