Enhanced transport of heavy metal ions by low-molecular-weight organic acids in saturated porous media: Link complex stability constants to heavy metal mobility

Chemosphere ◽  
2021 ◽  
pp. 133339
Author(s):  
Haojing Zhang ◽  
Ruoyu Zhang ◽  
Taotao Lu ◽  
Wei Qi ◽  
Yuwei Zhu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Molecular Weight ◽  
Porous Media ◽  
Heavy Metal Ions ◽  
Metal Mobility ◽  
Low Molecular Weight ◽  
Complex Stability ◽  
Saturated Porous Media ◽  
Heavy Metal Mobility ◽  
Complex Stability Constants

Transport of Cd2+ through saturated porous media: Insight into the effects of low-molecular-weight organic acids

2020 ◽  
Vol 168 ◽  
pp. 115182 ◽  
Author(s):  
Haojing Zhang ◽  
Taotao Lu ◽  
Zhongbo Shang ◽  
Yanxiang Li ◽  
Jianying He ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Porous Media ◽  
Organic Acids ◽  
Low Molecular Weight ◽  
Saturated Porous Media ◽  
Insight Into

scholarly journals Adsorption of Cd2+ by an ion-imprinted thiol-functionalized polymer in competition with heavy metal ions and organic acids

RSC Advances ◽  
2018 ◽  
Vol 8 (16) ◽  
pp. 8950-8960 ◽  
Author(s):  
Qiaoping Kong ◽  
Binbin Xie ◽  
Sergei Preis ◽  
Yun Hu ◽  
Haizhen Wu ◽  
...  
Keyword(s):  
Heavy Metal ◽  
Molecular Weight ◽  
Organic Acids ◽  
Metal Ions ◽  
Heavy Metal Ions ◽  
Low Molecular Weight ◽  
Ion Imprinted

A Cd2+-imprinted thiol-functionalized polymer in competition with heavy metal ions and low molecular weight organic acids was investigated.

scholarly journals Mobility of lead, zinc and cadmium in alluvial soils heavily polluted by smelting industry

2011 ◽  
Vol 51 (No, 7) ◽  
pp. 316-321 ◽  
Author(s):  
A. Vaněk ◽  
L. Borůvka ◽  
O. Drábek ◽  
M. Mihaljevič ◽  
M. Komárek
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Czech Republic ◽  
Extraction Procedure ◽  
Metal Mobility ◽  
Alluvial Soils ◽  
Mobility Factor ◽  
Heavy Metal Mobility ◽  
Profile Distribution ◽  
Lead Zinc

In order to determine the mobility of Pb, Zn and Cd in soils from the Př&iacute;bram region (Czech Republic) heavily contaminated by metallurgy, two profiles of alluvial soils were closely studied. Total contents of heavy metals were determined after digestion with a mixture of HF and HClO<sub>4</sub>. Heavy metal mobility was assessed using the mobility factor (MF) that represents the proportion of heavy metals present in the exchangeable and carbonate bound fraction based on the Tessier&rsquo;s sequential extraction procedure. The MF ranged from 2 to 46% for lead, 19 to 62% for zinc and 61 to 94% for cadmium. The profile distribution of zinc and cadmium showed a variable development with depth, which is caused by high amounts of these metals present in labile forms. The profile distribution of lead (the least mobile metal) is characterized by a gradual decrease with depth. The results indicate a higher contamination of the soil profile situated 2.5 km away from the smelter in comparison with the profile in its close vicinity. This fact confirms the existence of extreme fluvial contamination.

Sign in / Sign up

Export Citation Format

Share Document