摘要
在An/O生物除磷工艺的影响因子中,进水COD/TP与生化反应系统的BOD负荷是关键。试验结果表明:COD/TP越大,厌氧释磷越多,越有利于除磷,厌氧释磷量是吸收COD量的函数;并且,进水COD/TP的变化对系统COD的去除不会产生明显的影响。试验中还发现,厌氧条件下PHB的产生并不完全依赖于高能磷酸键水解提供的能量,COD浓度越高则越有利于PHB的贮存。若要达到好的除磷效果,系统的BOD负荷必须控制在0.21～0.5kgBOD5/(kgMLSS·d)之间,且BOD负荷越高,除磷效果越佳。
Among the influencing factors of anaerobic / oxic (An/O) biological phosphorus removal process,both the influent COD/TP and BOD loading are the key factors.The test indicates that the more the COD/TP,the more the anaerobic phosphorus release is,which is in favor of phosphorus removal.Phosphorus release is the function of COD uptake under anaerobic condition.The variation in influent COD/TP has no significant influence on COD removal.It is observed in the test that PHB production at anaerobic condition does not totally depend on the utilization of energy from hydrolysis of poly-phosphorus bond.The higher concentration of COD will result in more advantageous to the PHB storing.If a good phosphorus removal effect is desired,BOD loading must be controlled at 0.21-0.5 kgBOD_5/(kgMLSS·d),and the higher BOD_5 loading will lead to better phosphorus removal effect.
出处
《中国给水排水》
CAS
CSCD
北大核心
2004年第12期9-11,共3页
China Water & Wastewater
基金
国家高技术研究发展计划(863)项目(2003AA601010)
国家自然科学基金资助项目(20377003)
