Nano Zero Valent Iron (nZVI) as an Amendment for Phytostabilization of Highly Multi-PTE Contaminated Soil

• Published in: Materials Vol. 14; no. 10; p. 2559
• Main Authors: Radziemska, Maja, Gusiatin, Zygmunt M, Holatko, Jiri, Hammerschmiedt, Tereza, Głuchowski, Andrzej, Mizerski, Andrzej, Jaskulska, Iwona, Baltazar, Tivadar, Kintl, Antonin, Jaskulski, Dariusz, Brtnicky, Martin
• Format: Journal Article
• Language: English
• Published: Switzerland MDPI AG 14.05.2021; MDPI
• Subjects: Additives; Atomic absorption analysis; Biomass; Contaminants; Contaminated land; Experiments; Iron; Microwaves; nanoremediation; phytoremediation; Polyethylene; potentially toxic elements; Scientific imaging; Soil chemistry; Soil contamination; soil degradation; Soil investigations; Soils; Variance analysis; Poland; Australia; United States > US; Germany; nanoremediation; potentially toxic elements; phytoremediation; soil degradation
• ISSN: 1996-1944; 1996-1944
• DOI: 10.3390/ma14102559

In recent years, a lot of attention has been given to searching for new additives which will effectively facilitate the process of immobilizing contaminants in the soil. This work considers the role of the enhanced nano zero valent iron (nZVI) strategy in the phytostabilization of soil contaminated with potentially toxic elements (PTEs). The experiment was carried out on soil that was highly contaminated with PTEs derived from areas in which metal waste had been stored for many years. The plants used comprised a mixture of grasses- L. and L. To determine the effect of the nZVI on the content of PTEs in soil and plants, the samples were analyzed using flame atomic absorption spectrometry (FAAS). The addition of nZVI significantly increased average plant biomass (38%), the contents of Cu (above 2-fold), Ni (44%), Cd (29%), Pb (68%), Zn (44%), and Cr (above 2-fold) in the roots as well as the soil pH. The addition of nZVI, on the other hand, was most effective in reducing the Zn content of soil when compared to the control series. Based on the investigations conducted, the application of nZVI to soil highly contaminated with PTEs is potentially beneficial for the restoration of polluted lands.