| 石灰-铁盐法预处理煤制油废水的研究 |
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| 引用本文： | 陈向前,孟昭福,单明军,陈凤. 石灰-铁盐法预处理煤制油废水的研究[J]. 环境科学与技术, 2011, 34(8): 169-172. DOI: 10.3969/j.issn.1003-6504.2011.08.038 |
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| 作者姓名： | 陈向前 孟昭福 单明军 陈凤 |
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| 作者单位： | 1. 西北农林科技大学,陕西杨凌,712100
2. 辽宁科技大学,辽宁鞍山,114044 |
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| 摘 要： | 考察了石灰-铁盐混凝沉淀法预处理煤制油废水时,不同条件参数对废水中COD的去除率及B/C的影响.研究结果表明:控制水温30℃,石灰乳调节pH为10.5左右,聚合硫酸铁投加量为500 mg/L,聚丙烯酰胺的投加量为10mg/L,为最佳预处理工艺条件.经该工艺混凝预处理后废水COD从4 502 mg/L下降到2 026 m...
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| 关 键 词： | 煤制油 破乳 聚合硫酸铁 石灰水 |
Pretreatment of Coal to Oil Wastewater by Lime-molysite Process |
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| CHEN Xiang-qian,MENG Zhao-fu,SHAN Ming-jun,CHEN Feng. Pretreatment of Coal to Oil Wastewater by Lime-molysite Process[J]. Environmental Science and Technology, 2011, 34(8): 169-172. DOI: 10.3969/j.issn.1003-6504.2011.08.038 |
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| Authors: | CHEN Xiang-qian MENG Zhao-fu SHAN Ming-jun CHEN Feng |
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| Affiliation: | CHEN Xiang-qian1,MENG Zhao-fu1,SHAN Ming-jun2,CHEN Feng2(1.Northwest Agriculture and Forestry University of Science and Technology,Yangling 712100,China,2.Liaoning University of Science and Technology,Anshan 114044,China) |
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| Abstract: | Influence on the removal rate of CODCr and B/C by different conditions were studied in the experiment for pretreating coal to oil wastewater by lime-molysite coagulation process.Results showed that the optimum conditions were controlling wastewater temperature being about 30 ℃,adjusting pH at 10.5 by limewater,dosage of PFS 500 mg/L and dosage of PAM 10mg/L.Under the optimum conditions,CODCr of wastewater dropped from 4,502 mg/L to 2,026 mg/L,with removal rate more than 55% and B/C raised from 0.198 to 0.348,which would provide a favorable condition for subsequent biochemical treatment.The cost for the pretreatment is only 0.75 Yuan for per ton wastewater. |
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| Keywords: | coal to oil demulsification poly-Fe(PFS) limewater |
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