一种多DTC基团重金属螯合剂的合成及处理含铜废水性能

令玉林; 戴友芝; 刘立华; 李国斌

环境工程学报

, , ,

令玉林, 戴友芝, 刘立华, 李国斌. 一种多DTC基团重金属螯合剂的合成及处理含铜废水性能[J]. 环境工程学报, 2011, 5(6): 1246-1250.

引用本文:

令玉林, 戴友芝, 刘立华, 李国斌. 一种多DTC基团重金属螯合剂的合成及处理含铜废水性能[J]. 环境工程学报, 2011, 5(6): 1246-1250.

Ling Yulin, Dai Youzhi, Liu Lihua, Li Guobin. Synthesis of a heavy metal chelating agent with DTC group and its performance of treatment of copper-containing wastewater[J]. Chinese Journal of Environmental Engineering, 2011, 5(6): 1246-1250.

Citation:

Ling Yulin, Dai Youzhi, Liu Lihua, Li Guobin. Synthesis of a heavy metal chelating agent with DTC group and its performance of treatment of copper-containing wastewater[J]. Chinese Journal of Environmental Engineering, 2011, 5(6): 1246-1250.

一种多DTC基团重金属螯合剂的合成及处理含铜废水性能

1.
湖南科技大学化学化工学院，湘潭 411201； 2.湘潭大学化工学院，湘潭 411105
2.
湘潭大学化工学院，湘潭 411105
基金项目:
国家水体污染控制与治理科技重大专项（2009ZX07212-001-03）

国家自然科学基金（51078141）

湖南省教育厅项目（09C385）
中图分类号: X703

Synthesis of a heavy metal chelating agent with DTC group and its performance of treatment of copper-containing wastewater

1.
College of Chemistry and Chemical Engineering， Hunan University of Science and Technology， Xiangtan 411201， China；2. College of Chemical Engineering， Xiangtan University， Xiangtan 411105， China
2.
College of Chemical Engineering， Xiangtan University， Xiangtan 411105， China
Fund Project:

摘要: 合成了一种新的二硫代氨基甲酸盐类重金属螯合剂CDTC，并对其处理游离铜离子、EDTA络合铜和柠檬酸络合铜废水的性能进行了研究。实验结果表明：CDTC能直接去除已络合的铜，对不同形态的Cu2+去除率均达99%以上，处理后的废水中Cu2+剩余浓度达到我国《污水综合排放标准》（GB 8978-1996）一级标准；在废水pH =3～12范围内，CDTC对Cu2+的去除率高且稳定；处理废水产生的絮体沉降性能好，不需额外添加其他絮凝剂；螯合沉淀物在弱酸性和碱性条件下很稳定，不会产生二次污染。废水中的Ca2+和Mg2+离子有助于Cu2+的去除，Fe3+会和螯合剂发生反应，消耗螯合剂，而生成的螯合物沉淀絮体更大，沉降性能更好。
- 二硫代氨基甲酸盐 /
- 重金属螯合剂 /
- 络合铜废水 /
- 废水处理
Abstract: A dithiocarbamate heavy metal chelating agent CDTC was synthesized， and the investigations of its performance on treating free copper ions， CuEDTA and CuCA (citric acid， CA) were carried out. Results showed that CDTC could remove complex copper(II) from wastewaters directly. More than 99 % of the removal rate of different forms of copper were obtained， the residual metal ion concentration could completely meet the Integrated Wastewater Discharge Standard (GB 8978-1996). The removal rates were high and stable in pH value range 3 to 12. Moreover， no other flocculant was needed due to the excellent flocculation performance of resulting floc. The precipitates were highly stable both in weak acidic and alkaline environment. In addition， Ca2+， Mg2+ are helpful to the removal of Cu2+. Fe3+ can complex with CDTC， which improves the flocculating ability of CDTC and increases the settling speed of flocs.
- dithiocarbamate /
- heavy metal chelating agent /
- complex copper(II) wastewater /
- wastewater treatment

点击查看大图

计量

文章访问数: 2803
HTML全文浏览数: 1228
PDF下载数: 1178
施引文献: 0

令玉林, 戴友芝, 刘立华, 李国斌. 一种多DTC基团重金属螯合剂的合成及处理含铜废水性能[J]. 环境工程学报, 2011, 5(6): 1246-1250.

引用本文:

令玉林, 戴友芝, 刘立华, 李国斌. 一种多DTC基团重金属螯合剂的合成及处理含铜废水性能[J]. 环境工程学报, 2011, 5(6): 1246-1250.

Citation:

一种多DTC基团重金属螯合剂的合成及处理含铜废水性能

1. 湖南科技大学化学化工学院，湘潭 411201； 2.湘潭大学化工学院，湘潭 411105
2. 湘潭大学化工学院，湘潭 411105

收稿日期: 2010-12-08

基金项目:

国家水体污染控制与治理科技重大专项（2009ZX07212-001-03）

国家自然科学基金（51078141）

湖南省教育厅项目（09C385）

关键词:

摘要: 合成了一种新的二硫代氨基甲酸盐类重金属螯合剂CDTC，并对其处理游离铜离子、EDTA络合铜和柠檬酸络合铜废水的性能进行了研究。实验结果表明：CDTC能直接去除已络合的铜，对不同形态的Cu2+去除率均达99%以上，处理后的废水中Cu2+剩余浓度达到我国《污水综合排放标准》（GB 8978-1996）一级标准；在废水pH =3～12范围内，CDTC对Cu2+的去除率高且稳定；处理废水产生的絮体沉降性能好，不需额外添加其他絮凝剂；螯合沉淀物在弱酸性和碱性条件下很稳定，不会产生二次污染。废水中的Ca2+和Mg2+离子有助于Cu2+的去除，Fe3+会和螯合剂发生反应，消耗螯合剂，而生成的螯合物沉淀絮体更大，沉降性能更好。

English Abstract

Synthesis of a heavy metal chelating agent with DTC group and its performance of treatment of copper-containing wastewater

1. College of Chemistry and Chemical Engineering， Hunan University of Science and Technology， Xiangtan 411201， China；2. College of Chemical Engineering， Xiangtan University， Xiangtan 411105， China
2. College of Chemical Engineering， Xiangtan University， Xiangtan 411105， China

Received Date: 2010-12-08

Fund Project:

Keywords:

Abstract: A dithiocarbamate heavy metal chelating agent CDTC was synthesized， and the investigations of its performance on treating free copper ions， CuEDTA and CuCA (citric acid， CA) were carried out. Results showed that CDTC could remove complex copper(II) from wastewaters directly. More than 99 % of the removal rate of different forms of copper were obtained， the residual metal ion concentration could completely meet the Integrated Wastewater Discharge Standard (GB 8978-1996). The removal rates were high and stable in pH value range 3 to 12. Moreover， no other flocculant was needed due to the excellent flocculation performance of resulting floc. The precipitates were highly stable both in weak acidic and alkaline environment. In addition， Ca2+， Mg2+ are helpful to the removal of Cu2+. Fe3+ can complex with CDTC， which improves the flocculating ability of CDTC and increases the settling speed of flocs.

全文HTML

参考文献 (0)

下载: 全尺寸图片幻灯片

返回文章

用微信扫码二维码

分享至好友和朋友圈

一种多DTC基团重金属螯合剂的合成及处理含铜废水性能

Synthesis of a heavy metal chelating agent with DTC group and its performance of treatment of copper-containing wastewater

计量

出版历程

一种多DTC基团重金属螯合剂的合成及处理含铜废水性能

English Abstract

Synthesis of a heavy metal chelating agent with DTC group and its performance of treatment of copper-containing wastewater

全文HTML

目录