| 黄金冶炼酸性废水提标处理试验研究 |
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| 引用本文： | 黄江波,覃朝科,黎朝,肖筱瑜. 黄金冶炼酸性废水提标处理试验研究[J]. 广州化工, 2014, 0(10): 148-150 |
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| 作者姓名： | 黄江波 覃朝科 黎朝 肖筱瑜 |
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| 作者单位： | [1]中国有色桂林矿产地质研究院有限公司,广西桂林541004 [2]广西环境治理工程技术研究中心,广西桂林541004 [3]环境工程与保护评价重点实验室,广西桂林541004 |
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| 基金项目： | “广西特聘专家”专项资金资助;战略性新兴产业科技攻关（桂科重1298002-7）. |
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| 摘 要： | 对高浓度含砷、铊的黄金冶炼酸性废水进行了氧化-二段混凝沉淀-絮凝处理研究,考察了氧化剂、混凝剂用量和pH值对去除效果的影响。最佳工艺参数为:30%H2O21.5 g/L、FeSO4·7H2O 4.5 g/L、FeCl33.75 mg/L、PAM 15.625 mg/L,pH=6~7。在最佳工艺条件下,砷浓度从298 mg/L降至0.013 2 mg/L,铊浓度从9μg/L降至0.021 9μg/L。处理后废水中砷浓度可达到GB3838-2002《地表水环境质量标准》III类标准,铊浓度可达到GB5749-2006《生活饮用水卫生标准》。
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| 关 键 词： | 黄金冶炼 酸性废水 氧化-二段混凝沉淀 砷 铊 |
Experimental Research on Upgrading the Acid Wastewater from the Gold Smelting |
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| Affiliation: | HUANG Jiang - bo, QIN Zhao - ke, LI Zhao, XIAO Xiao - yu (1 China Nonferrous Metal (Guilin) Geology And Mining Co. , Ltd, Guangxi Guilin 541004; 2 Technological Research Center of Guangxi Environment Treatment Engineering, Guangxi Guilin 541004; 3. Key Lab of Guangxi Environment Engineering and Protection Evaluation, Guangxi Guilin 541004, China) |
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| Abstract: | The acid wastewater produced by gold smelting was treated with oxidation -two stage coagulating sedimentation -flocculation process, the influences of oxidant amount, coagulant amount and pH value on the removal of arsenic and thallium were analyzed. The result showed the optimal conditions were 30% H2O2 1.5 g/L, FeSO4· 7H2O 4.5 g/L, FeCl3 3.75 mg/L, PAM 15. 625 mg/L and pH 6 - 7. With the above conditions, the arsenic concentration decreased from 298 mg/L to 0. 013 2 rag/L, and thallium decreased from 9 μg/L to 0. 021 9 μg/L. The arsenic and thallium concentration remained in the treated water reached Grade HI requirement of Environmental Quality Standards for Surface Water （ GB3838 - 2002）, and Standards for Drinking Water Quality （ GB5749 - 2006 ）, respectively. |
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| Keywords: | gold smelting acid wastewater oxidation -two stage coagulating sedimentation arsenic thallium |
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