| MAP晶体捕集反应器回收猪场厌氧消化液中磷的研究 |
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| 引用本文： | 钱锋,宋永会,向连城,袁芳,葛杰.MAP晶体捕集反应器回收猪场厌氧消化液中磷的研究[J].环境科学学报,2014,34(12):2991-2997. |
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| 作者姓名： | 钱锋 宋永会 向连城 袁芳 葛杰 |
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| 作者单位： | 中国环境科学研究院环境基准与风险评估国家重点实验室;中国环境科学研究院城市水环境科技创新基地;北京师范大学环境学院; |
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| 基金项目： | 国家自然科学基金项目(No.51078339)~~ |
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| 摘 要： | 研究了磷酸铵镁(MAP)结晶法晶体捕集反应器在曝气条件下回收猪场厌氧消化液中磷元素的能力.结果表明,利用曝气方式提高猪场厌氧消化液的p H值,进行MAP结晶回收磷完全可行.MAP的饱和度指数(SI)与废水p H值呈多项式函数关系,结晶反应的最佳p H值为8.5~9.0;随着曝气时间延长至180 min,反应器内废水p H值可提高至8.5;常温下(25℃),反应器内MAP回收磷的反应动力学的反应级数(n)为1.98,速率常数(K25)为7.04×10-4L·mg-1·min-1;反应器单个运行周期为270 min;磷的平均去除率为82%左右.MAP晶体捕集反应器上的晶体在一个反应周期内即可成形,随着反应周期的增加,晶体颗粒逐渐增大.利用扫描电镜和X射线衍射仪对捕集器所捕集的晶体进行了表征,证实晶体为高纯度的MAP.
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| 关 键 词： | MAP 曝气 磷回收 猪场厌氧消化液 饱和度指数 反应动力学 |
| 收稿时间： | 2/8/2014 12:00:00 AM |
| 修稿时间： | 4/6/2014 12:00:00 AM |
Phosphorus recovery from anaerobic-digested piggery wastewater by collecting reactor of map crystal |
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| QIAN Feng,SONG Yonghui,XIANG Liancheng,YUAN Fang and GE Jie.Phosphorus recovery from anaerobic-digested piggery wastewater by collecting reactor of map crystal[J].Acta Scientiae Circumstantiae,2014,34(12):2991-2997. |
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| Authors: | QIAN Feng SONG Yonghui XIANG Liancheng YUAN Fang and GE Jie |
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| Institution: | 1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012;Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012;2. School of Environment, Beijing Normal University, Beijing 100875;1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012;2. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012;1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012;2. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012;1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012;2. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012;1. State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012;2. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012 |
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| Abstract: | |
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| Keywords: | MAP aeration phosphorus recovery anaerobic-digested piggery wastewater saturation index reaction kinetics |
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