| 交联阳离子淀粉螯合剂对铬渣的处理研究 |
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| 引用本文： | 韩怀芬,陈小娟,郑建军,李伟东.交联阳离子淀粉螯合剂对铬渣的处理研究[J].环境工程学报,2004,5(6):48-50. |
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| 作者姓名： | 韩怀芬 陈小娟 郑建军 李伟东 |
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| 作者单位： | 浙江工业大学生物与环境工程学院,杭州,310014 |
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| 基金项目： | 浙江省自然科学基金资助项目 ( 4 0 10 0 1) |
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| 摘 要： | 合成了作为重金属螯合剂的交联阳离子淀粉 ,并将它用于铬渣的固化实验 ,对固化体的浸出毒性、表面浸出率、抗压强度等指标进行了测试。结果表明 ,添加高分子螯合剂后的固化体的浸出毒性降低 6 6 4 % ,远远小于国家标准的1 5mg/L ;2 8d后的表面浸出率仅为 1 0 -6数量级 ;抗压强度有所下降 ,但 2 8d养护后的抗压强度大于 30MPa ,符合填埋或建筑综合利用的强度要求
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| 关 键 词： | 螯合剂 重金属 固化 |
| 修稿时间： | 2003年7月11日 |
Utilization of cationic starch chelating agent in chromium residue removal |
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| Han Huaifen,Chen Xiaojuan,Zheng Jianjun,Li Weidong.Utilization of cationic starch chelating agent in chromium residue removal[J].Techniques and Equipment for Environmental Pollution Control,2004,5(6):48-50. |
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| Authors: | Han Huaifen Chen Xiaojuan Zheng Jianjun Li Weidong |
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| Abstract: | The properties of the cement waste forms containing starch chelating agent are tested. The results show, compared with sample without chelating agent,toxicity of leachate of the cement waste forms reduces by 66 4%, and far lower than 1 5 mg/L. After 28 d, the scalar of surface leaching rate reaches to 10 -6 . The compressive strength of the cement waste forms decreases with chelate added, but is still more than 30 MPa after 28 d, meeting all the conditions in general construction or landfill. |
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| Keywords: | chelating agent heavy metals solidification |
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