| 污泥发酵液中磷回收的优化研究 |
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| 引用本文： | 缪晓娟,王涌涛,冯延申.污泥发酵液中磷回收的优化研究[J].广东化工,2014(1):103-105. |
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| 作者姓名： | 缪晓娟 王涌涛 冯延申 |
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| 作者单位： | 苏州科技学院环境科学与工程学院,江苏苏州215009 |
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| 基金项目： | 江苏省太湖水环境综合治理科研项目（TH2012201） |
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| 摘 要： | 确定鸟粪石沉淀法回收污泥发酵液中磷的最佳优化工艺参数。在单因素试验的基础上,采用响应曲面分析法对鸟粪石沉淀法回收污泥发酵液中PO43--P和NH4+-N的影响条件进行了优化分析和探讨。采用实验设计软件Design-Expert的中心组合设计,以pH、Mg/P摩尔比为自变量,以PO43-P回收率为响应值进行分析,预测最佳优化工艺参数。预测结果:pH 9.58,镁磷比值1.2时,污泥发酵液回收磷效果最好,PO43--P去除率可达90.70%。通过试验验证,预测值与实验值接近。响应曲面分析法对鸟粪石沉淀法回收污泥发酵液中氮磷的工艺参数优化合理。
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| 关 键 词： | 鸟粪石沉淀法 污泥发酵液 响应曲面法 磷回收 |
Study on Optimization of the Recovery of Phosphorus from Sludge Fermentation Liquid |
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| Miao Xiaojuan,Wang Yongtao,Feng Yanshen.Study on Optimization of the Recovery of Phosphorus from Sludge Fermentation Liquid[J].Guangdong Chemical Industry,2014(1):103-105. |
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| Authors: | Miao Xiaojuan Wang Yongtao Feng Yanshen |
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| Affiliation: | (School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, China) |
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| Abstract: | Struvite precipitation method was used to recover phosphorus from sludge fermentation liquid. Based on single factor test, response surface methodology （RSM） was used to study the effects ofpH, Mg/P on the removal of phosphorus and nitrogen. The results showed that, the optimal operation condition was as follows： pH=9.58, Mg/P=1.2. The predicted removal rate of phosphorus reaches 90.70 %. In this case, the practical removal rate of phosphoras reaches 91.32 %. the actual value and the projected are almost the same. |
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| Keywords: | struvite precipitation method sludge fermentation liquid response surface methodology phosphorus recovery |
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