不同碳源浓度下CIBR中反硝化与释磷的协同性  

Synergistic Effect of Denitrification and Phosphorus Release in CIBR at Different Carbon Source Concentrations

作　　者：高兰[1] 章北平[1] 冯力文[2] 韩红波[1] 郑渊贾 

机构地区：[1]华中科技大学环境科学与工程学院,湖北武汉430074 [2]江苏省交通规划设计院股份有限公司郑州分公司,河南郑州450000

出　　处：《中国给水排水》2015年第1期87-90,共4页China Water & Wastewater

摘　　要：在不同进水碳源浓度条件下,研究了连续流一体化间歇曝气生物反应器(CIBR)缺氧阶段的反硝化和释磷过程。结果表明,反硝化速率与碳源浓度成正比,反硝化过程中出现了亚硝态氮的累积,其累积速率及之后的还原速率均与进水碳源浓度呈正相关;当进水碳源充足时,反硝化与释磷可同时进行,否则先反硝化后释磷,说明硝态氮不会对释磷过程产生明显的抑制作用;是否释磷以及开始释磷的时间均由进水碳源浓度决定;p H值曲线上的"凸点"可用于指示反硝化过程的结束,因此可将p H值作为主控参数来优化CIBR的运行。The effects of different carbon source concentrations of influent on denitrification and phosphorus release during anoxic phase of integrated continuous-flow intermittent-aeration biological reac- tor （CIBR） were investigated by batch tests. The experimental results showed that the denitrification rate was proportional to carbon source concentration in influent. The nitrite accumulation occurred during denitrification, and the accumulation rate of nitrite and the reduction rate of accumulated nitrite were pos- itively related to carbon source concentration in influent. When carbon source in influent was sufficient, denitrification and phosphorus release were synchronous, otherwise phosphorus release would not occur until denitrification was accomplished. These phenomena indicated that nitrate did not inhibit the release of phosphorus. Both whether or not phosphorus release would occur and the time at which phosphorus re- lease began were determined by carbon source concentration in influent. It was found that the peak point on pH curve could indicate the completion of denitrification. It was suggested that pH could be used as the main control parameter to optimize the operation of CIBR.

关 键 词：连续流一体化间歇曝气生物反应器 碳源浓度 反硝化 释磷 pH值 

分 类 号：X703[环境科学与工程—环境工程]