Removal of Pb, Zn, and Cd from contaminated soil by new washing agent from plant material

@article{Cao2017RemovalOP,
  title={Removal of Pb, Zn, and Cd from contaminated soil by new washing agent from plant material},
  author={Yaru Cao and Shirong Zhang and Guiyin Wang and Qinling Huang and Ting-xuan Li and Xiao-xun Xu},
  journal={Environmental Science and Pollution Research},
  year={2017},
  volume={24},
  pages={8525-8533}
}
Soil washing is an effective approach to remove soil heavy metals, and the washing agent is generally regarded as one of the primary factors in the process, but there is still a lack of efficient and eco-friendly agents for this technique. Here, we showed that four plant washing agents—from water extracts of Coriaria nepalensis (CN), Clematis brevicaudata (CB), Pistacia weinmannifolia (PW), and Ricinus communis (RC)—could be feasible agents for the removal of soil lead (Pb), zinc (Zn), and… Expand
Enhancing the soil heavy metals removal efficiency by adding HPMA and PBTCA along with plant washing agents.
TLDR
The addition of HPMA or PBTCA with the plant agents could improve the removal of soil heavy metals. Expand
Simultaneous Multi-metal Removal from Soil with Washing Agents of Waste, Plant and Microbial Origin
ABSTRACT In this study, batch washings of soil highly contaminated with Cd, Cu, Ni, Pb and Zn were performed with three washing agents (WAs) of different origin, i.e., humic-like substances (HLS)Expand
Sewage sludge can provide a washing agent for remediation of soil from a metallurgical area
Abstract The search for washing agents recovered from waste is a new trend in the washing of soils contaminated with heavy metals (HMs). In the present study, dissolved organic matter (DOM) recoveredExpand
A holistic approach to remediation of soil contaminated with Cu, Pb and Zn with sewage sludge-derived washing agents and synthetic chelator
Abstract Green soil washing is a new trend in remediation of heavy metal (HM) contaminated soils that is based on application of washing agents (WAs) derived from organic waste sources. This studyExpand
Simultaneous removal of multiple heavy metals from soil by washing with citric acid and ferric chloride
The remediation of soil contaminated with multiple heavy metals is a matter of great concern due to its serious threat to the ecosystem and human health. Batch and slurry reactor soil washingExpand
Removal of Pb, Zn, Ni and Cr from industrial sludge by biodegradable washing agents: Caboxyethylthiosuccinic acid and itaconic-acrylic acid
  • Zhanbiao Yang, Dan Wang, +9 authors Xiao-xun Xu
  • Chemistry
  • 2021
Abstract Chemical washing is considered an effective technique for removing heavy metals (HMs) from industrial sludge. However, traditional washing methods have the potential to cause secondaryExpand
Washing agents from sewage sludge: efficiency of Cd removal from highly contaminated soils and effect on soil organic balance
Purpose To compare Cd removal from different soils with three washing agents recovered from sewage sludge (dissolved organic matter (DOM), soluble humic-like substances (HLS), soluble humicExpand
Efficiency and comprehensive risk assessment of soil Pb and Cd by washing technique with three biodegradable eluents
  • Qinmei Zhong, Shirong Zhang, +8 authors Lulu Long
  • Medicine
  • Environmental Science and Pollution Research
  • 2021
TLDR
PESA is an ecological benefit eluent for remediating the farmland polluted by heavy metals, and the risk assessment based on labile fraction more easily identifies the dynamic change of heavy metal during the washing process. Expand
Compound washing remediation and response surface analysis of lead-contaminated soil in mining area by fermentation broth and saponin
TLDR
A compound eluent constructed using the prepared citric acid fermentation broth and saponin displayed a good washing performance for Pb, Cu, Cr, and Cd in red soil, and the removal rates gained an improvement compared with a singleEluent. Expand
Utilization of Waste Leaves Biomass of Myrica Esculenta for the Removal of Pb (II), Cd (II) and Zn (II) Ions from Waste Waters
In the present study, we have used the waste leaves of Myrica esculenta for the removal of Pb2+, Cd2+ and Zn2+ ions from the synthetically prepared waste water. The adsorption based removal processExpand
...
1
2
...

References

SHOWING 1-10 OF 69 REFERENCES
Humic substances from sewage sludge compost as washing agent effectively remove Cu and Cd from soil.
TLDR
Investigation of whether inexpensive humic substances from sewage sludge compost could effectively remove copper (Cu) and cadmium (Cd) from highly contaminated sandy clay loam (S1) and clay (S2) found that triple washing lowered the potential ecological risk of the soils and showed potential for treating soils highly contaminated with heavy metals. Expand
Metal (Cu, Cd and Zn) removal and stabilization during multiple soil washing by saponin.
TLDR
Based on the redistribution index, the most stable metal after triplicate washing was Cu in loamy sand and loam, and for silty clay contaminated with Cd, effective metal removal and its stabilization required a higher number of washings. Expand
Removal of Cu, Pb and Zn by foam fractionation and a soil washing process from contaminated industrial soils using soapberry-derived saponin: a comparative effectiveness assessment.
TLDR
The present investigation indicated that the foam fractionation process is more efficient for the removal of heavy metal from contaminated industrial soil in comparison to the soil washing process. Expand
Pilot-scale washing of Pb, Zn and Cd contaminated soil using EDTA and process water recycling.
TLDR
The results of the pilot-scale testing indicate that scaling-up the process to a commercial level is technically and economically feasible. Expand
Role of reducing agent in extraction of arsenic and heavy metals from soils by use of EDTA.
TLDR
The results clearly showed that the combination of dithionite and EDTA can effectively extract As and heavy metals simultaneously from soils under a wide range of pH conditions. Expand
Pilot-scale washing of metal contaminated garden soil using EDTA.
TLDR
Ten batches of garden soil with >50% of silt and clay were remediated in a pilot-scale chemical extraction plant and washing with 60mmol ethylenediaminetetraacetic acid per kg of soil removed 79, 38, 70, and 80% of Pb, Zn, Cd and As, respectively, and significantly reduced the leachability, phyto-accessibility and oral-availability of residual toxic metals. Expand
Extraction of heavy metals from soils using biodegradable chelating agents.
TLDR
Investigation of biodegradable chelating agents found the extraction with EDDS at pH 7 showed the best compromise between extraction efficiency for Cu, Zn, and Pb and loss of Ca and Fe from the soil. Expand
Metal associations in soils before and after EDTA extractive decontamination: implications for the effectiveness of further clean-up procedures.
TLDR
After EDTA application, metal content (especially Pb) remained more weakly adsorbed to soil components (more easily leachable), potentially favouring the application of phytoremediation technologies. Expand
Simultaneous removal of heavy metals from field-polluted soils and treatment of soil washing effluents through combined adsorption and artificial sunlight-driven photocatalytic processes
This paper proposes a process for reducing the content of copper and zinc in polluted soils and a combined photocatalytic-physical process for the treatment of the soil washing effluents. For thisExpand
Assessment of pilot-scale acid washing of soil contaminated with As, Zn and Ni using the BCR three-step sequential extraction.
TLDR
This study monitored the variation of chemical speciation of As, Zn and Ni for acid solutions and particle size fraction using the BCR sequential extraction and evaluated the optimal condition of physical separation of highly contaminated fine particles for enhanced washing. Expand
...
1
2
3
4
5
...