| 城市污泥中镉的去除试验研究 |
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| 引用本文： | 曾祥峰,王祖伟. 城市污泥中镉的去除试验研究[J]. 天津农业科学, 2011, 17(1): 117-119. DOI: 10.3969/j.issn.1006-6500.2011.01.030 |
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| 作者姓名： | 曾祥峰 王祖伟 |
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| 作者单位： | 天津师范大学,城市与环境科学学院,天津市水资源与水环境重点实验室,天津,300384 |
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| 基金项目： | 国家自然科学基金，天津市自然科学基金 |
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| 摘 要： | 利用改进铁氧体法,石灰乳做中和剂,试验研究了不同FeCl_3/FeSO_4初始浓度、pH值、FeCl_3及FeSO_4加入量(Fe~(3+)/M~(n+)比值)、温度、反应时间等条件下,城市污泥用乙酸——双氧水淋溶浸出液中镉和铅去除率。结果表明,在pH为9、反应温度为室温、反应时间为1h、FeCl_3和FeSO_4初始浓度分别为0.1,0.05mol·L~(-1),Fe~(3+)/Cd~(2+)=10的最佳工艺条件下,镉去除率为89%;浸出后的液体镉含量达到安全排放标准。
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| 关 键 词： | 铁氧体法 城市污泥 浸出液 镉 去除率 |
Experimental Research on Cadmium Removal from Sewage Sludg |
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| ZENG Xiang-feng,WANG Zu-wei. Experimental Research on Cadmium Removal from Sewage Sludg[J]. Tianjin Agricultural Sciences, 2011, 17(1): 117-119. DOI: 10.3969/j.issn.1006-6500.2011.01.030 |
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| Authors: | ZENG Xiang-feng WANG Zu-wei |
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| Affiliation: | ZENG Xiang-feng,WANG Zu-wei (The Key Laboratorie of Water Resources and Water Environment in Tianjin,College of Urban and Environment Science,Tianjin Normal University,Tianjin 30038,China) |
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| Abstract: | Using improved ferrite way and lime milk as netralization,cadmium removal from sewage sludg extract fluid by acetic acid-H_2O_2 in various conditions of different initial concentrations of FeCl_3 /FeSO_4,pH values,FeCl_3 -FeSO_4 adding volumes,temperature, reaction times was researched.The result was obtained that removal of cadmium was 89%and the resideual extract fluid could be dicharged legally in the process conditions that the initial concentrations of FeCl_3 /FeSO_4 was 0.10,0.05mol·L~（-1）,and the FeCl_3/FeSO_4 adding volume Fe~（2＋）：Fe~（3＋）（mol value） = 1：2,and Fe~（3＋）/Cd~（2＋） =10,the pH value was 9,temperature was ordinary temperature, the reaction time was 1h. |
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| Keywords: | ferrite way sewage sludg handled liquid Cd removal |
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