化学混凝强化SBR工艺除磷的试验研究  

Experimental Research on Phosphorus Removal by Enhanced SBR Process Assisted with Chemical Coagulation

作　　者：张耀坤[1] 荣宏伟[1] 张朝升[1] 

机构地区：[1]广州大学土木工程学院,广东广州510006

出　　处：《净水技术》2016年第2期58-63,共6页Water Purification Technology

基　　金：国家自然科学基金资助项目(51278133;21477027);广东省自然科学基金资助项目(S2013010013943);广州市教育系统创新团队资助项目(13C01)

摘　　要：该文选择氯化铁和硫酸铝作混凝剂，以模拟城市生活污水为处理对象，利用化学混凝和SBR工艺，研究生物化学法协同除磷的效果并考察pH和温度变化对系统除磷的影响。结果表明：在混凝剂活性污泥法中，去除总磷所需氯化铁的平均投加量为17.18 mg/mg TP，与活性污泥具有协同作用；硫酸铝的平均投加量为27.12 mg/mg TP，与活性污泥不具有协同作用，但二者均能显著地强化系统的除磷作用；在生化反应器中，维持偏碱性环境并将温度控制在15 - 25 ℃之间有利于脱氮除磷。Chemical coagulation and SBR process were used to investigate phosphorus removal effects of chemical and biochemical synergy and the influences when changing pH and temperature. In the experiment, synthetic municipal wastewater was treated, and two different coagulants, ferric chloride and aluminum sulfate, were chosen. The results show that the average dosage of ferric chloride is 17.18 mg/mg TP, and it has a good synergistic effect with the activated sludge; aluminum sulfate＇s is 27.12 mg/mg TP, and it has no synergistic effect. Besides, the two coagulants can significantly strengthen the effect of phosphorus removal. In the biochemical reactors, maintaining an alkalescent environment and an appropriate temperature range of 15 - 25 ℃ is propitious to nitrogen and phosphorus removal.

关 键 词：混凝剂 序批式活性污泥工艺(SBR) 除磷 pH值 温度 

分 类 号：TU992.3[建筑科学—市政工程]