| 稀土废水中高浓度氨氮处理与回收试验研究 |
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| 引用本文： | 黄海明,晏波,陈启华,傅忠,肖贤明.稀土废水中高浓度氨氮处理与回收试验研究[J].环境工程学报,2008,2(5):652-655. |
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| 作者姓名： | 黄海明 晏波 陈启华 傅忠 肖贤明 |
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| 作者单位： | 1. 中国科学院广州地球化学研究所有机地球化学国家重点试验室,广州,510640;中国科学院研究生院,北京,100049
2. 中国科学院广州地球化学研究所有机地球化学国家重点试验室,广州,510640 |
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| 摘 要： | 为处理稀土分离排放的高浓度NH4 -N废水,采用模拟废水研究了在不同条件下减压蒸馏回收氯化铵对馏出液中NH4 -N浓度变化影响.发现真空度、不同浓度范围及溶液pH对馏出液中NH4 -N浓度有显著影响,在真空度为0.07MPa,溶液pH为3～4条件下蒸馏,可使馏出液中NH4 -N浓度<15 mg/L.实际废水验证试验表明,废水经气浮除油、氨水中和、适量重金属沉淀剂DTCR去除重金属及活性炭吸附微量重金属及油类物质等预处理后,减压蒸馏可获得较高品质氯化铵产品,经分析达到工业级合格产品,馏出液可作为自来水回用于生产.对废水处理成本和收益进行了估算,发现每处理1 m3废水可获得67.1元的经济收入,实现较高的经济效益和生态环境效益.
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| 关 键 词： | 真空蒸发 NH4 -N废水 真空度 回收 |
| 文章编号： | 1673-9108(2008)05-0652-04 |
| 修稿时间： | 3/8/2008 12:00:00 AM |
Experimental research on treatment and recovery of high concentration of ammonium nitrogen in rare earths wastewater |
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| Huang Haiming,Yan Bo,Chen Qihu,Fu Zhong and Xiao Xianming.Experimental research on treatment and recovery of high concentration of ammonium nitrogen in rare earths wastewater[J].Techniques and Equipment for Environmental Pollution Control,2008,2(5):652-655. |
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| Authors: | Huang Haiming Yan Bo Chen Qihu Fu Zhong and Xiao Xianming |
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| Institution: | 1. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry,Chinese Academy of Sciences, Guangzhou 510640;2. Graduate University of Chinese Academy of Sciences, Beijing 100049,1. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry,Chinese Academy of Sciences, Guangzhou 510640,1. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry,Chinese Academy of Sciences, Guangzhou 510640,1. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry,Chinese Academy of Sciences, Guangzhou 510640 and 1. State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry,Chinese Academy of Sciences, Guangzhou 510640 |
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| Abstract: | |
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| Keywords: | vacuum evaporation ammonium nitrogen wastewater vacuum degree recovery |
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