| Ca2+与CO32-协同作用对MAP结晶法去除污泥厌氧消化液中磷的影响 |
| |
| 引用本文： | 葛杰,林郁,钱锋,宋永会,王毅力.Ca2+与CO32-协同作用对MAP结晶法去除污泥厌氧消化液中磷的影响[J].环境科学学报,2014,34(12):2998-3005. |
| |
| 作者姓名： | 葛杰 林郁 钱锋 宋永会 王毅力 |
| |
| 作者单位： | 中国环境科学研究院城市水环境科技创新基地;北京林业大学环境科学与工程学院;中国地质大学水资源与环境工程北京市重点实验室; |
| |
| 基金项目： | 国家自然科学基金(No.51078339);中央级公益性科研院所基本科研业务专项(No.2011KYYW-01)~~ |
| |
| 摘 要： | 以模拟厌氧消化液为处理对象,进行了磷酸铵镁(MAP)结晶实验,考察了p H值、CO2-3、Ca2+以及CO2-3和Ca2+共存对磷酸铵镁结晶反应的影响;利用扫描电子显微镜(SEM-EDX)、X射线衍射(XRD)和傅里叶变换红外光谱(FTIR)对产物进行了表征.结果表明,随着p H值升高,磷的去除率显著提高,并在p H值为9.5时得到具有良好沉降性能的针状MAP晶体;CO2-3的存在会使磷去除率降低,在实验设定CO2-3浓度最大的条件下,磷去除率降低约17%,同时CO2-3会削弱Ca2+对MAP结晶反应的贡献,但并不改变MAP晶体形态和纯度;Ca2+存在则可以提高P去除率,但对MAP结晶反应抑制作用显著,当体系中n(Ca)/n(Mg)0.65,产物主要以无定形磷酸钙盐为主;在Ca2+与CO2-3共存的体系中,Ca2+可有效地消除CO2-3对除磷效果的影响,随着两者浓度的增加,产物Ca CO3含量增多,磷酸盐则主要以MAP形式沉淀.
|
| 关 键 词： | 厌氧消化液 磷回收 磷酸铵镁结晶反应 碳酸根 |
| 收稿时间： | 1/7/2014 12:00:00 AM |
| 修稿时间： | 2014/1/26 0:00:00 |
Interactive effects of Ca2+ and CO32- on phosphorus removal from anaerobic digestion liquor by struvite crystallization |
| |
| GE Jie,LIN Yu,QIAN Feng,SONG Yonghui and WANG Yili.Interactive effects of Ca2+ and CO32- on phosphorus removal from anaerobic digestion liquor by struvite crystallization[J].Acta Scientiae Circumstantiae,2014,34(12):2998-3005. |
| |
| Authors: | GE Jie LIN Yu QIAN Feng SONG Yonghui and WANG Yili |
| |
| Institution: | 1. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012;2. College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083;1. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012;2. Beijing Key Laboratory of Water Resources and Environmental Engineering, China University of Geosciences, Beijing 100083;Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012;Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012;College of Environmental Science and Engineering, Beijing Forestry University, Beijing 100083 |
| |
| Abstract: | |
| |
| Keywords: | anaerobic digestion phosphorus recovery magnesium ammonium phosphate (MAP) crystallization reaction carbonate |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
| 点击此处可从《环境科学学报》下载免费的PDF全文 |
|
