| 羟基亚乙基二膦酸对抑制CaCO3垢的稳定性研究 |
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| 引用本文： | 张利,张冰如,李风亭. 羟基亚乙基二膦酸对抑制CaCO3垢的稳定性研究[J]. 工业用水与废水, 2009, 40(4): 63-66 |
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| 作者姓名： | 张利 张冰如 李风亭 |
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| 作者单位： | 同济大学,环境科学与工程学院,上海,200092;同济大学,环境科学与工程学院,上海,200092;同济大学,长江水环境教育部重点实验室,上海,200092;同济大学,环境科学与工程学院,上海,200092;同济大学,污染控制与资源化研究国家重点实验室,上海,200092 |
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| 基金项目： | 上海市科委国际合作项目 |
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| 摘 要： | 采用静态阻垢法测定不同浓度的HEDP药剂对碳酸钙垢的阻垢效果,测定阻垢试验的溶液中实际残留的HEDP药剂浓度,考察了不同Ca2+浓度与HEDP的沉积效应,研究结果表明,在低Ca2+浓度时,HEDP药剂对碳酸钙有良好的阻垢效果;在高Ca2+浓度的溶液中,HEDP药剂与溶液中大量的Ca2+结合,形成不溶性有机膦酸盐-钙复合体而沉积,而影响HEDP药效的发挥。
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| 关 键 词： | 循环冷却水 阻垢剂 羟基亚乙基二膦酸 有机膦酸盐 |
Stability of inhibition ability of HEDP to CaCO3 scale |
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| ZHANG Li,ZHANG Bing-ru,LI Feng-ting. Stability of inhibition ability of HEDP to CaCO3 scale[J]. Industrial Water & Wastewater, 2009, 40(4): 63-66 |
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| Authors: | ZHANG Li ZHANG Bing-ru LI Feng-ting |
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| Abstract: | Using static scale inhibition method to measure inhibition effect of HEDP with different concentra- tion levels to CaCO3 scale, the residual HDPE concentration in the experimental solution was measured and the relationship between Ca2+ concentration and deposition effect of HEDP was investigated. The results showed that, HEDP had a better inhibition performance to CaCO3 scale when the Ca2+ concentration was low; and in the solution containing high concentration of Ca2+, HEDP had a chemical combination with abundant Ca2+ and formed insoluble organic phosphonate-calcium composite sediment, which impact the effect of HEDP. |
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| Keywords: | circulating cooling water scale inhibitor HEDP organic phosphonate |
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