| CASS工艺生物脱氮除磷效果分析 |
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| 引用本文： | 付朝臣,廖日红,王培京,何刚,顾永刚.CASS工艺生物脱氮除磷效果分析[J].北京水务,2010(3):21-23. |
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| 作者姓名： | 付朝臣 廖日红 王培京 何刚 顾永刚 |
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| 作者单位： | 北京市水利科学研究所,100048 |
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| 基金项目： | 北运河水系上游典型污染区污染控制技术研究与示范课题(2008ZX07209-03)温榆河流域污染源控制技术研究 |
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| 摘 要： | 对CASS工艺脱氮除磷效果进行了试验研究,重点研究了温度和回流比对脱氮效果的影响,曝气量对除磷效果的影响。研究结果表明,水温在30℃时系统脱氮效果最好,此时NH3-N去除率在80%左右,TN去除率在70%左右;污泥回流比为25%、50%、100%和200%时,TN去除率分别为50%、58%、62%和70%,增加回流比可以提高脱氮效率;好氧区DO维持在2mg/L和4 mg/L时,TP去除率分别为82%和37%。
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| 关 键 词： | 脱氮除磷 温度 回流比 溶解氧 |
Study on nitrogen and phosphorus removal effect by CASS process |
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| FU Chao-chen,LIAO Ri-hong,WANG Pei-jing,HE Gang,GU Yong-gang.Study on nitrogen and phosphorus removal effect by CASS process[J].Beijing Water,2010(3):21-23. |
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| Authors: | FU Chao-chen LIAO Ri-hong WANG Pei-jing HE Gang GU Yong-gang |
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| Affiliation: | FU Chao-chen LIAO Ri-hong WANG Pei-jing HE Gang GU Yong-gang(Beijing Hydraulic Research Institute,Beijing,100048,China) |
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| Abstract: | In this paper,CASS process was studied for nitrogen and phosphorus removal with the emphases on the correlation between nitrogen removal efficiency and temperature and sludge return ratio,phosphorus removal efficiency and DO.The experiment showed that at 30℃ the removal rates of NH3-N and TN were highest,80% and 70% respectively.TN removal efficiency changed with sludge return ratio,with rather higher sludge return ratio,TN removal processes could be completed efficiently and steadily.The correlation between phosphorus removal efficiency and the influent factors such as DO was observed,when DO in aerobic area were 2 mg/L and 4 mg/L,the removal rates of TP were 82% and 37% respectively. |
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| Keywords: | nitrogen and phosphorus removal temperature return ratio DO |
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