两段SBR工艺脱氮规律实验研究

Experimental Study on Denitrification Rule Adopting Two-stage SBR Process

基于对生物硝化反硝化原理的分析,本实验选用两段SBR工艺生物脱氮技术,解决了高浓度工业废水有机物去除效率高而氨氮去除率不高的难题。同时对其脱氮规律作了研究,找到SBR2是脱氮的关键环节,并分别对SBR2硝化反硝化阶段p H和DO的变化规律进行了研究,得出用这两个参数作为系统自动控制的依据是完全可行的。

Based on the analysis on biological nitrification and denitrification theory, this experi-ment adopted two-stage SBR process of biological denitrification technology, solved the problem that organic removal efficiency was high but ammonia nitrogen removal rate was low in high concentration industrial wastewater. While working out the rule of denitrification, found that SBR2 was the key part of denitrification, and studied the change rules of pH and DO at stages of SBR2 nitrification, concluded that with the two parameters as a basis for automatic control system was feasible.