| 絮凝对垃圾渗滤液毒性去除的影响 |
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| 引用本文： | 李丹丹,郑怀礼,潘云霞. 絮凝对垃圾渗滤液毒性去除的影响[J]. 水处理技术, 2008, 34(2): 70-73 |
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| 作者姓名： | 李丹丹 郑怀礼 潘云霞 |
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| 作者单位： | 重庆大学教育部三峡库区生态环境重点实验室,重庆,400045;重庆大学化学化工学院,重庆,400045;重庆大学教育部三峡库区生态环境重点实验室,重庆,400045;重庆大学城市建设与环境工程学院,重庆,400045 |
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| 基金项目： | 国家自然科学基金 , 重庆市自然科学基金 , 重庆市科技攻关项目 , 重庆大学博士研究生创新基金 |
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| 摘 要： | 研究了用絮凝法去除垃圾渗滤液中污染物及其对垃圾渗滤液毒性的影响.试验结果表明,浓度为12mmol/L、pH值为8的硫酸铁对NH3-N的去除率达到61.3%;pH值为8的聚合硫酸铁和pH值为7.47的聚硅硫酸铁也能有效去除垃圾渗滤液中的有机污染物和重金属.毒性试验显示,pH值为8的硫酸铁对甘蓝种子萌发的影响最小,与自来水相比没有显著差异,有效地降低了垃圾渗滤液的毒性.
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| 关 键 词： | 垃圾渗滤液 絮凝 毒性去除 |
| 文章编号： | 1000-3770（2008）02-070-04 |
| 收稿时间： | 2007-04-29 |
| 修稿时间： | 2007-04-29 |
EFFECT OF FLOCCULATION PROCESSES ON TOXICITY REMOVAL OF LANDFILL LEACHATE |
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| LI Dan-dan,ZHENG Huai-li,PAN Yun-xia. EFFECT OF FLOCCULATION PROCESSES ON TOXICITY REMOVAL OF LANDFILL LEACHATE[J]. Technology of Water Treatment, 2008, 34(2): 70-73 |
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| Authors: | LI Dan-dan ZHENG Huai-li PAN Yun-xia |
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| Abstract: | Landfill leachate containing NH3-N,organic contaminant and heavy metals would result in serious risks to ecosystems if these chemicals were not treated efficiently. In order to decrease or eliminate their harmful effect, flocculation processes were carried out to remove NH3-N,organic contaminant and heavy metals from anaerobic-aerobic landfill leachate. The experimental results indicated that ferric sulphate was superior to the other coagulants and 61.3% of NH3-N was removed at an optimum dosage of 12mmol/L at pH=8. Organic contaminants and heavy metals were also removed effectively with polyferric sulphate at pH =8 and polyferric silicate sulfate at pH=7.47. Toxicity tests showed that ferric sulphate at pH=8 had little effect on the germination of carbage seed, and toxicity of landfill leachate was reduced significantly. |
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| Keywords: | landfill leachate flocculation toxicity removal |
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