Removal of cadmium ions from low concentration wastewater containing cadmium by modified starch

ZHANG Yanlin; ZHANG Qiuyun; WANG Ting

您当前的位置：

首页 >

文章列表页 >

Removal of cadmium ions from low concentration wastewater containing cadmium by modified starch

更新时间：2025-12-10

- Removal of cadmium ions from low concentration wastewater containing cadmium by modified starch
- CIESC Journal Issue 2, Pages: 460-464(2009)
- 作者机构：
  
  华南师范大学化学与环境学院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 February 2009，
  
  Published：05 February 2009
- 稿件说明：
移动端阅览
ZHANG Yanlin, ZHANG Qiuyun, WANG Ting. Removal of cadmium ions from low concentration wastewater containing cadmium by modified starch[J]. CIESC Journal, 2009, (2): 460-464.
DOI：

ZHANG Yanlin, ZHANG Qiuyun, WANG Ting. Removal of cadmium ions from low concentration wastewater containing cadmium by modified starch[J]. CIESC Journal, 2009, (2): 460-464. DOI：

摘要

对淀粉（St）接枝共聚丙烯酰胺（AM）并与巯基乙酸（MCAA）反应进行了研究，将得到的产物用于低浓度含镉废水处理取得了较好的效果。研究了淀粉与丙烯酰胺配比不同对St-AM接枝率和接枝效率的影响并对巯基化后得到的产物St-AM-MCAA的巯基含量进行了测定。对低浓度（0.4mg/L）含镉废水的处理研究发现：含镉废水在pH=8，添加量为50mg时镉去除率可达89.7%；St-AM-MCAA较St-AM产物能提高Cd2+去除率10%以上。

Abstract

Graft copolymerization of acrylamide onto starch and reaction with mercaptoacetic acid subsequently were studied.The reaction product (St-AM-MCAA) was used in the treatment of wastewater containing low concentration cadmium ion (0.40 mg·L-1) as additive.An investigation was carried out to study the effect of St/AM (mass ratio of starch to acrylamide) on the grafting ratio and grafting efficiency and the content of thiol (SH) group.It was found that the cadmium ion removal percentage by St-AM-MCAA3 reached 89.7% and the residual concentration of cadmium ion in treated water was under 0.10 mg·L-1 in the conditions of pH=8 and additive concentration of 2.0 g·L-1 by selecting a high grafting ratio and thiol content product St-AM-MCAA3 as additive. The ability of St-AM-MCAA3 to remove low concentration wastewater containing cadmium ion was higher than that of St-AM3 by 10%.

关键词

Keywords

references

Views

231

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

EFFECT OF OLEATES AS EMULSIFIERS ON GRAFT COPOLYMERIZATION OF AM-AA ON STARCH IN INVERSE EMULSION

KLPAAM复合高吸水树脂吸附

Preparation of Ni-mSA/CS bipolar membrane and its application to electro-generation of TGA

Synthesis of superabsorbent resin of konjac glucomannan grafting acrylic acid/acrylamide

Preparation, polymerization of reverse microemulsion of acrylamide and its micro-structure

Related Author

YANG Jinzong

LIU Zhaoli

CAO Yafeng

吴义强

韩心强

张绘营

谢建军

何新建

Related Institution

大连理工大学精细化工国家重点实验室

大连轻工业学院化工系

中南林业科技大学材料科学与工程学院

福建师范大学化学与材料学院

有机功能分子合成与应用教育部重点实验室

⁰