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Nitrite Accumulation during the Denitrification Process
Author(s): 
Pages: 1-3
Year: Issue:  4
Journal: Journal of University of Science and Technology of Suzhou(Engineering and Technology)

Keyword:  half-denitrificationnitrite accumulationsequencing batch reactor;
Abstract: 在一个SBR反应器中研究了反硝化过程中的亚硝酸盐积累现象。在低的pH和低C/N比(3和2.5)条件下有较明显的积累。pH为5.8左右有利于反硝化过程的亚硝酸盐积累。C/N比为3时,获得的亚硝酸盐积累率最大可达45%。虽然C/N比为2.5时的亚硝酸盐积累率降为37%,但其碳源药剂费用少,并且其出水COD浓度低,可减少后续处理费用。在C/N比为2.5时,硝酸盐降解速率、亚硝酸盐积累速率和亚硝酸盐降解速...
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