| H2O2-铁炭法预处理冷轧带钢厂镀锡废水 |
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| 引用本文： | 林永增,刘梅英,刘相华,王国栋.H2O2-铁炭法预处理冷轧带钢厂镀锡废水[J].钢铁,2007,42(5):79-81. |
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| 作者姓名： | 林永增 刘梅英 刘相华 王国栋 |
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| 作者单位： | 1. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004;上海宝钢股份有限公司宝钢分公司,上海,200431
2. 东北大学轧制技术及连轧自动化国家重点实验室,辽宁,沈阳,110004 |
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| 基金项目： | 国家重点基础研究发展计划(973计划) |
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| 摘 要： | 冷轧厂电镀锡生产过程中产生的废水含有大量的有机物,COD浓度高,pH值在1.1～2.0之间,很难直接进行生化处理.为提高生化处理效果,以H2O2-铁炭柱-pH调节-混凝为处理工艺进行前处理,结果表明,空速为3 h-1、H2O2/COD为1.5(质量比)、pH为8左右、PAM加入量为15 mg/m3时处理效果最好.利用该方法处理冷轧厂镀锡废水,可有效降低COD的浓度, Sn2 被氧化成高价态后沉淀除去,为废水进入后续的生化处理提供了保障.
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| 关 键 词： | 含苯酚磺酸(PSA) COD 铁炭法 H2O2-Fe2 氧化 预处理 |
| 文章编号： | 0449-749X（2007）05-0079-03 |
| 修稿时间： | 2006-09-23 |
Pre-Treatment of Tin-Plating Wastewater From Cold Strip Mill With H2O2-Ferric/Carbon |
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| LIN Yong-zeng,LIU Mei-ying,LIU Xiang-hua,WANG Guo-dong.Pre-Treatment of Tin-Plating Wastewater From Cold Strip Mill With H2O2-Ferric/Carbon[J].Iron & Steel,2007,42(5):79-81. |
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| Authors: | LIN Yong-zeng LIU Mei-ying LIU Xiang-hua WANG Guo-dong |
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| Affiliation: | 1. State Key Lab of Rolling and Automation, Northeastern University, Shenyang 110004, Liaoning,China; 2. Baosteel Braneh, Baosteel Co. , Ltd. , Shanghai 200431, China |
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| Abstract: | There is a plenty of organic matters in wastewater from tin electroplating process of cold rolling mill.The concentration of COD is high and pH is between 1.1-2.0.So it is difficult to treat directly by biochemical process.H2O2-ferric/activated carbon-pH calibration-coagulation process was used to pretreat such wastewater.The results showed that the effect is the best when void speed is 3 h-1,H2O2/COD is 1.5,pH is about 8 and the dosage of PAM is 5 mg/m3.The chemical oxygen demands(COD) can be reduced and the Sn2+ removed by precipitation as Sn4+ after oxidation.The pretreatment provides necessary conditions for the further biological process. |
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| Keywords: | PSA COD ferric-carbon method H2O2Fe2+ oxidation pretreatment |
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