| 新型复合絮凝剂去除生活污水中COD的效果研究 |
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| 引用本文： | 甘黎明,夏德强.新型复合絮凝剂去除生活污水中COD的效果研究[J].环境科学与管理,2011,36(1):79-81. |
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| 作者姓名： | 甘黎明 夏德强 |
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| 作者单位： | 兰州石化职业技术学院石油化学工程系,甘肃兰州,730060 |
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| 摘 要： | 采用絮凝沉淀法处理生活污水中的COD,考察了复合絮凝剂APAC中铝与凹凸棒质量配比、盐基度、污水pH值及复合絮凝剂投加量对除COD效果的影响。实验结果表明:将盐基度为80%的APAC絮凝剂配成2g/L的液体,在m(铝):m(凹凸棒)为2:1、投加量为8 mL~10 mL、污水pH值为4~12的优化条件下,对实际生活污水中COD的去除率高于60%,出水中COD含量低于140 mg/L。同时比较了在相同试验条件下复合絮凝剂与PAC絮凝剂对实际污水的去除COD效果,结果表明,APAC的净水效果明显优于PAC。
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| 关 键 词： | 复合絮凝剂 凹凸棒 聚合氯化铝 COD 生活污水 |
Study on COD Removal of by Composite Flocculant |
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| Gan Liming,Xia Deqiang.Study on COD Removal of by Composite Flocculant[J].Environmental Science and Management,2011,36(1):79-81. |
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| Authors: | Gan Liming Xia Deqiang |
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| Institution: | Gan Liming,Xia Deqiang(Lanzhou Petrochemical College of Vocational Technology,Lanzhou 730060,China) |
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| Abstract: | The domestic sewage was treated by flocculantion and sedimentain.Some factors which affect COD removal were also studied,such as m(aluminum):m(attapulgite),basicity,dosage and pH value.The experimental results showed that the removal efficiency of COD is best when the mass fraction is 2 g/L,the basicity is 80%,and m(aluminum):m(attapulgite) is 2:1,the dosage is 8~10 mL,and pH value is 4~12.Under these optimal conditions,the COD removal rate and the COD of the effluent are above 60% and below 140 mg/L,respec... |
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| Keywords: | COD |
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