期刊论文

Effect of chelating agents on remediation of cadmium and arsenic complex contaminated soil using oil sunflower

中文

农业环境科学学报

1672-2043

2019

38

8

1891-1900

10.11654/jaes.2019-0568

The National Key R&D Program of China (2017YFD0801500); The National Science and Technology Support Program (2015BAD05B02)

本校为第一机构

为提高油葵对农田土壤重金属的提取效率,研究了不同螯合剂(NTA、EGTA、EDDS和EDTA)对油葵修复Cd、As复合污染农田土壤的影响。结果表明,施用4种不同螯合剂对油葵根、茎、叶、花盘和籽粒生物量影响不大。不同螯合剂对油葵各器官Cd、 As含量和积累量影响不一样。与CK处理相比,施用NTA、EGTA、EDDS、EDTA导致油葵花盘Cd含量分别提高30.2%、55.1%、 41.9%和43.3%,根系As含量分别提高23.6%、18.1%、15.6%和15.4%,但是对籽粒和茎中Cd含量影响不显著。施用NTA、EGTA、 EDDS和EDTA处理使油葵植株总Cd积累量分别比CK处理提高32.8%、45.3%、40.5%和41.6%,而对油葵As积累量没有显著影响。4种螯合剂对油葵各...

To identify measures to improve the heavy metal extraction efficiency of oil sunflower on farmland soil, the effect of different chelating agents(NTA, EGTA, EDDS, and EDTA) on the remediation of Cd and As complex-contaminated soil by oil sunflower were studied. The results showed the application of the four different chelating agents had little effect on the biomass of roots, stems, leaves, disk, and grain of oil sunflower. Different chelating agents had different effects on Cd and As concentrations and accumulation in different organs of the o...