| 钙镁复配药剂对污水的除磷脱氮作用 |
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| 引用本文： | 顾学林,刘洪利,刘宇童,张晓敏,陈爽.钙镁复配药剂对污水的除磷脱氮作用[J].中国石油大学学报(自然科学版),2019(2):163-170. |
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| 作者姓名： | 顾学林 刘洪利 刘宇童 张晓敏 陈爽 |
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| 作者单位： | 山东胜利水务有限责任公司;青岛西海岸新区实验高级中学;中国石油大学(华东)化学工程学院 |
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| 基金项目： | 山东省自然科学基金项目(ZR2017MB015);重质油国家重点实验室项目(SLKZZ-2017002);中国石油科技创新基金项目(2017D-5007-0601) |
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| 摘 要： | 针对高氮磷含量污水处理,以钙镁合剂利用化学沉淀法对滤液进行除磷脱氮实验。分析钙镁合剂除磷脱氮的机制,考察NaOH投加量和钙镁药剂复配投加量的影响,得到最佳工艺条件。结果表明:实验中NaOH、MgCl_2和CaCl_2的质量浓度分别为150、60和40 mg/L时,污水中总磷(TP)去除率达到90%,总氮(TN)和NH_3-N去除率达到25%;动态小试试验中选取NaOH、MgCl_2和CaCl_2的质量浓度分别为105、48和24 mg/L时,TP去除率达到90%,TN和NH_3-N去除率达到30%;Ca2+和Mg2+在一定条件下与PO^-_4、NH^+_4等基团发生反应,生成磷酸铵镁以及羟基磷酸钙沉淀,从而达到除磷脱氮效果。
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| 关 键 词： | 污水处理 钙镁复合 除磷脱氮 |
Removal of phosphorus and nitrogen from sewage by calcium and magnesium compounding agent |
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| GU Xuelin,LIU Hongli,LIU Yutong,ZHANG Xiaomin,CHEN Shuang.Removal of phosphorus and nitrogen from sewage by calcium and magnesium compounding agent[J].Journal of China University of Petroleum,2019(2):163-170. |
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| Authors: | GU Xuelin LIU Hongli LIU Yutong ZHANG Xiaomin CHEN Shuang |
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| Institution: | (Shandong Shengli Water Affairs Company Limited, Dongying 257000, China;Qingdao West Coast New Area Experimental High School, Qingdao 266400, China;College of Chemical Engineering in China University of Petroleum(East China), Qingdao 266580, China) |
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| Abstract: | GU Xuelin;LIU Hongli;LIU Yutong;ZHANG Xiaomin;CHEN Shuang(Shandong Shengli Water Affairs Company Limited, Dongying 257000, China;Qingdao West Coast New Area Experimental High School, Qingdao 266400, China;College of Chemical Engineering in China University of Petroleum(East China), Qingdao 266580, China) |
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| Keywords: | sewage disposal calcium and magnesium compound phosphorus and nitrogen removal |
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