垃圾发电厂渗滤液生化处理系统pH值下降原因分析与对策研究

渗滤液处理系统是生活垃圾焚烧发电厂的重要组成部分,某垃圾发电厂渗滤液处理规模为300 m^(3)/d,硝化池pH值变化严重影响生化系统安全运行,硝化池pH值下降至限值,会导致生化系统崩溃。文章通过从碱度、COD、碳氮比、溶解氧、其他影响硝化池pH值变化的各类因素出发进行系统性原因分析并采取合理对策,逐步使系统pH值升高,生化系统恢复正常,为同类企业渗滤液处理站的安全稳定运行提供参考。

Leachate treatment system is an important part of domestic waste incineration power plant.The leachate treatment scale of a waste power plant is 300 m^(3)/d.The change of pH value of nitrification tank seriously affects the safe operation of biochemical system.If the pH value of nitrification tank drops to the limit,the biochemical system will collapse.Based on the alkalinity,COD,carbon/nitrogen ratio,dissolved oxygen and other factors affecting the change of pH value of nitrification tank,the author makes a systematic cause analysis and takes reasonable countermeasures to gradually increase the pH value of the system and restore the biochemical system to normal,so as to provide reference for the safe and stable operation of leachate treatment stations of similar enterprises.