| 火电厂脱硫废水除氟技术 |
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| 引用本文： | 龚本涛.火电厂脱硫废水除氟技术[J].净水技术,2011(4):40-43. |
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| 作者姓名： | 龚本涛 |
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| 作者单位： | 同济大学建筑设计研究院(集团)有限公司; |
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| 摘 要： | 该文在现有的各种除氟方法研究基础上,探索出电厂脱硫废水降氟的最有效的方法,即采用化学沉淀法/混凝法来去除电厂脱硫废水中氟化物。通过一系列条件选择试验,确定了适宜沉淀剂为Ca(OH)2、适宜混凝剂为Al(2SO4)3,最佳Ca/F为1∶1.5、最佳Al/F为3∶2。还以0.1%聚丙烯酰胺(PAM)作为助凝剂做探讨试验,找出进一步深度处理氟化物适宜的VPAM。结果表明:该除氟体系可将含氟140~200 mg/L的废水降至10 mg/L以下,符合我国工业废水排放标准(GB 8978—1996)。
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| 关 键 词： | 除氟 脱硫废水 聚丙烯酰胺(PAM) |
Fluoride Removal for Desulphurization Waste Water in Thermal Power Plant |
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| Gong Bentao.Fluoride Removal for Desulphurization Waste Water in Thermal Power Plant[J].Water Purifcation Technology,2011(4):40-43. |
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| Authors: | Gong Bentao |
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| Affiliation: | Gong Bentao(The Architectural Design and Research Institute of Tongji University,Shanghai 200092,China) |
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| Abstract: | The most effective way for removing fluoride in desulphurization waste water in power plants was discussed in this paper on the basis of various fluoride removal methods. Chemical precipitation/coagulation was recommended. The results indicate that the feasible precipitant and coagulant are Ca（OH）2 and A12（SO4）3, respectively. The optimal Ca/F and A1/F are 1 ： 1.5 and 3 ： 2, respective- ly. The further experiment was carried out by coagulant aid （0.1% polyaerylamide） and the optimal VpAM was studied. More experimen- tal results reveal removing fluoride system can reduce the fluoride concentration from 140-200 mg/L to less than 10 mg/L in waste water, which meets the industrial waste water discharge standards （GB 8978--1996）. |
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| Keywords: | fluoride removal desulphurization waste water polyacrylamide(PAM) |
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