以氯化方法实现生物膜法短程硝化反应

Implementation of Short-cut Nitrification by Chlorination in Biofilm Reactor

以稳定运行的全程硝化的生物膜反应器的一个反应单元为研究对象,通过外加氯实现对硝化反应中两类细菌的选择性抑制。分别以冲击性和连续性方式投加氯,可以在生物膜法生物脱氮反应中实现短程硝化。当短程硝化反应实现后,通过改变投药方式可节省投药量并维持短程硝化反应。

In a cell of biofilm reactor for whole-run nitrifcation, chlorine was added to achieve the selective inhibition to two kinds of bacteria in nitrification. Chlorine was added in shocking and continuous mode respectively, so as to realize short-cut nitrification with a biological denitrification with a biofilm reactor. After the short-cut nitrification was realized, chemical dosage could be saved and short-cut nitrification maintained by means of changing the chemical dosing method.