| 重金属杂质对磷酸铵镁结晶法处理制药废水的影响 |
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| 引用本文： | 王国文,王栋,王明明,徐晓晨,杨凤林.重金属杂质对磷酸铵镁结晶法处理制药废水的影响[J].环境工程学报,2013,7(12):4866-4868. |
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| 作者姓名： | 王国文 王栋 王明明 徐晓晨 杨凤林 |
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| 作者单位： | 大连理工大学环境学院, 工业生态与环境工程教育部重点实验室, 大连 116024;大连理工大学环境学院, 工业生态与环境工程教育部重点实验室, 大连 116024;辽宁核与辐射监测中心, 沈阳 110033;大连理工大学环境学院, 工业生态与环境工程教育部重点实验室, 大连 116024;大连理工大学环境学院, 工业生态与环境工程教育部重点实验室, 大连 116024 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2008ZX07208-003-002） |
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| 摘 要： | 磷酸铵镁沉淀法处理废水时常受众多因素影响，其中重金属类杂质对该过程影响较大。实验研究了Mn2+、Cu2+杂质存在条件下，用该法去除制药废水中PO43-、NH4+污染物，同时，用XRD、XRF、SEM等手段研究了所得鸟粪石晶体特征。结果表明，pH为9.5时，Mn2+、Cu2+杂质存在条件下，PO43-去除率分别为88%和85%，投加晶种有利于回收特定晶形鸟粪石，Cu2+对磷酸铵镁结晶过程的影响较Mn2+存在时显著。
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| 关 键 词： | 磷酸铵镁 杂质 制药废水 晶种 |
Effect of heavy metal impurities on struvite precipitation for treatment of pharmaceutical wastewater |
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| Wang Guowen,Wang Dong,Wang Mingming,Xu Xiaochen and Yang Fenglin.Effect of heavy metal impurities on struvite precipitation for treatment of pharmaceutical wastewater[J].Techniques and Equipment for Environmental Pollution Control,2013,7(12):4866-4868. |
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| Authors: | Wang Guowen Wang Dong Wang Mingming Xu Xiaochen and Yang Fenglin |
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| Institution: | Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China;Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China;Liaoning Center of Nuclear Radiation Monitoring, Shenyang 110033, China;Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China;Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental Science and Technology, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | Application of struvite precipitation in treating wastewater is influenced by many factors, especially heavy metal impurities which play an important role in the process of crystallization. Considering this problem, we investigated pollutants removal efficiency of PO43- and NH4+ in pharmaceutical wastewater containing Mn2+ and Cu2+ impurities. XRD, XRF, SEM techniques were used to analyze the struvite product seperated from the streams. The results indicated that PO43- removal efficiency of 88% and 85% were obtained in the presence of Mn2+ and Cu2+ impurities, respectively (pH=9.5). Crystal seed dosing benefits recovering struvite with special structure, whereas Cu2+ showed a distinct impact of interference on struvite crystallization compared with Mn2+. |
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| Keywords: | magnesium ammonium phosphate impurities pharmaceutical wastewater crystal seed |
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