Comparative study of nitrification performances of immobilized cell fluidized bed reactor and contact oxidation biofilm reactor in treating high strength ammonia wastewater
Comparative study of nitrification performances of immobilized cell fluidized bed reactor and contact oxidation biofilm reactor in treating high strength ammonia wastewater
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固定化细胞流化床反应器与接触氧化生物膜反应器处理高浓度氨氮废水硝化性能对比研究
DOI：
10.1002/jctb.1788
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发表时间：
2008
影响因子：
3.4
通讯作者：
XL Qiao, QX Chen, ZJ Zhang
中科院分区：
文献类型：
--
作者：
XL Qiao, QX Chen, ZJ Zhang
背景：固定化细胞流态床反应器和接触氧化生物膜反应器是处理高浓度氨氮废水的两种常用选择，但对这两种反应器硝化性能的对比研究还不够深入。考察和比较了两种生物反应器处理高浓度合成氨废水的硝化性能。
结果：与接触氧化生物膜反应器相比，固定化细胞沸腾床反应器驯化周期短，能在较短的时间内完成氧化15 0~360 mg L−1氨氮废水，在8~32℃温度范围内具有较高的氨氮去除效率(9 6~4 32×10 2 mgN L−1 d−1)。相比之下，在化学需氧量(COD)负荷下，接触氧化生物膜反应器中氨氮的去除有较大幅度的降低。固定化细胞流态化反应器长期保持稳定的高硝化速率。
结论：固定化细胞流态化反应器是处理高浓度氨氮废水的理想选择。版权所有(C)2007化学工业学会
BACKGROUND: The immobilized cell fluidized bed reactor and contact oxidation biofilm reactor are two common choices for high strength ammonia wastewater treatment, however, comparative study of the nitrification performance of the two reactors has not been thoroughly studied. The nitrification performance of the two bioreactors when treating strong synthetic ammonia wastewater was investigated and compared.
RESULTS: Results demonstrated that the immobilized cell fluidized bed reactor had a shorter acclimation period, and possessed several advantages over the contact oxidation biofilm reactor, in the form of complete oxidation of 150–360 mg L−1 ammonia wastewater in a shorter time, higher ammonia removal rates (from 9.6 to 4.32 × 102 mgN L−1 d−1) over the temperature range 8 to 32 °C, irrespective of organic load. In contrast, a large reduction in ammonia removal was found in the contact oxidation biofilm reactor with chemical oxygen demand (COD) load. The immobilized cell fluidized bed reactor exhibited stable and high rates of nitrification in the long term.
CONCLUSION: These facts demonstrated that the immobilized cell fluidized bed reactor is a suitable selection for high strength ammonia wastewater treatment. Copyright © 2007 Society of Chemical Industry
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