SBR工艺脱氮除磷升级改造方案现场试验研究  

In-situ Experiment on Upgrading of SBR for Nitrogen and Phosphorus Removal

作　　者：杨志宏 马小军 孙丽娜[2] 谢卫朋[2] 陈宏平[2] 

机构地区：[1]山西正阳污水净化有限公司,山西晋中030600 [2]太原理工大学环境科学与工程学院,山西太原030024

出　　处：《中国给水排水》2015年第11期79-82,共4页China Water & Wastewater

基　　金：山西省回国留学人员科研资助项目(2014-02);山西省人社厅留学回国人员科技活动择优资助项目(2014-95);国家自然科学基金资助项目(51078252)

摘　　要：针对某城市污水处理厂SBR系统的脱氮除磷升级改造方案进行化学除磷、生物脱氮方式的现场试验验证。当聚合氯化铝(PAC)投量>120 mg/L时,可以保证出水TP浓度达到一级A标准;投加PAC降低了系统对COD的去除效率,但仍能达标,对活性污泥其他性能影响不大。试验验证的几种生物脱氮工序中,瞬时进水→曝气→搅拌(补充碳源)→曝气→沉淀→出水→闲置工序和多段进水工序可以保证出水TN达标,其中,后者不需要补充碳源,且能够保证TN和TP同时达标。An in-situ experiment was performed on the upgrading of SBR for nitrogen and phos- phorus removal in a WWTP to verify the substantial effect of the chemical phosphorus removal method and the biological nitrogen removal method. When the PAC dosage was greater than 120 rag/L, the effluent TP could meet the first level A criteria specified in the national discharge standards. The addition of PAC decreased the COD removal efficiency, nevertheless the effluent COD could still meet the discharge stand- ard. The PAC had little effect on other properties of activated sludge. Among the several tested biological nitrogen removal processes, the effluent TN of the feeding/aeration/stirring （adding external carbon）/ aeration/settling/decanting/idle process and the step-feed process could meet the discharge standards. The effluent TN and rip of the step-feed process could both meet the discharge standards without supple- mentation of carbon source.

关 键 词：SBR工艺 除磷 脱氮 分段进水 现场试验 

分 类 号：X703[环境科学与工程—环境工程]