Remediation of hexachlorobenzene‐contaminated soils with alkyl glycoside‐enhanced desorption and zero‐valent iron–EDTA–air treatment

2020 ◽  
Vol 49 (2) ◽  
pp. 358-367 ◽  
Author(s):  
Haiyan Zhou ◽  
Di Wang ◽  
Menghua Cao ◽  
Pengyu Li ◽  
Linling Wang ◽  
...  
Keyword(s):  
Contaminated Soils ◽  
Zero Valent Iron ◽  
Air Treatment ◽  
Alkyl Glycoside

scholarly journals Zero-Valent Iron Nanoparticles for Soil and Groundwater Remediation

2020 ◽  
Vol 17 (16) ◽  
pp. 5817
Author(s):  
Alazne Galdames ◽  
Leire Ruiz-Rubio ◽  
Maider Orueta ◽  
Miguel Sánchez-Arzalluz ◽  
José Luis Vilas-Vilela
Keyword(s):  
Contaminated Soils ◽  
Groundwater Remediation ◽  
Iron Nanoparticles ◽  
Environmental Issues ◽  
High Specific Surface Area ◽  
Zero Valent Iron ◽  
Pilot Studies ◽  
High Effectiveness ◽  
Nanosized Materials ◽  
Zero Valent Iron Nanoparticles

Zero-valent iron has been reported as a successful remediation agent for environmental issues, being extensively used in soil and groundwater remediation. The use of zero-valent nanoparticles have been arisen as a highly effective method due to the high specific surface area of zero-valent nanoparticles. Then, the development of nanosized materials in general, and the improvement of the properties of the nano-iron in particular, has facilitated their application in remediation technologies. As the result, highly efficient and versatile nanomaterials have been obtained. Among the possible nanoparticle systems, the reactivity and availability of zero-valent iron nanoparticles (NZVI) have achieved very interesting and promising results make them particularly attractive for the remediation of subsurface contaminants. In fact, a large number of laboratory and pilot studies have reported the high effectiveness of these NZVI-based technologies for the remediation of groundwater and contaminated soils. Although the results are often based on a limited contaminant target, there is a large gap between the amount of contaminants tested with NZVI at the laboratory level and those remediated at the pilot and field level. In this review, the main zero-valent iron nanoparticles and their remediation capacity are summarized, in addition to the pilot and land scale studies reported until date for each kind of nanomaterials.

Synergistic remediation of PCB-contaminated soil with nanoparticulate zero-valent iron and alfalfa: targeted changes in the root metabolite-dependent microbial community

2021 ◽  
Vol 8 (4) ◽  
pp. 986-999
Author(s):  
Ting Wu ◽  
Yangzhi Liu ◽  
Kun Yang ◽  
Lizhong Zhu ◽  
Jason C. White ◽  
...  
Keyword(s):  
Microbial Community ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Zero Valent Iron ◽  
New Strategy

This work provides a new strategy using nanomaterial-facilitated phytoremediation to promote the restoration of POP-contaminated soils.

Remediation of contaminated soils by enhanced nanoscale zero valent iron

2018 ◽  
Vol 163 ◽  
pp. 217-227 ◽  
Author(s):  
Danni Jiang ◽  
Guangming Zeng ◽  
Danlian Huang ◽  
Ming Chen ◽  
Chen Zhang ◽  
...  
Keyword(s):  
Contaminated Soils ◽  
Zero Valent Iron ◽  
Nanoscale Zero Valent Iron

scholarly journals Immobilization of Cu and As in two contaminated soils with zero-valent iron – Long-term performance and mechanisms

2016 ◽  
Vol 67 ◽  
pp. 144-152 ◽  
Author(s):  
Charlotta Tiberg ◽  
Jurate Kumpiene ◽  
Jon Petter Gustafsson ◽  
Aleksandra Marsz ◽  
Ingmar Persson ◽  
...  
Keyword(s):  
Contaminated Soils ◽  
Zero Valent Iron ◽  
Long Term Performance ◽  
Term Performance

Preliminary Study on Effects of Nanoscale Amendments on Hyperaccumulator Indian Marigold Grown on Co-Contaminated Soils

2014 ◽  
Vol 955-959 ◽  
pp. 243-247 ◽  
Author(s):  
Jun Jie Du ◽  
Qi Xing Zhou
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Contaminated Soils ◽  
Zero Valent Iron ◽  
Reduced Graphene ◽  
Nanoscale Zero Valent Iron ◽  
Pot Trials ◽  
Preliminary Study

In this study, nanoscale zero-valent iron (nZVI) and nZVI/reduced graphene oxide (RGO-nZVI) nanocomposites were prepared, and the effect of nZVI, RGO-nZVI and graphene oxide (GO) on Indian marigold were examined by pot trials with contaminated soils amended with nanomaterials. The observed results show that 0.05% nZVI and 0.05% RGO-nZVI can wilt the Indian marigold, and they exhibit significant in situ mobility in fluvo-aquic soils. In this paper, the feasibility of improving the phytoremediation efficiency of contaminated soils by amending with nanomaterials is also discussed.

scholarly journals Evaluation of Zero-Valent Iron for Pb(II) Contaminated Soil Remediation: From the Analysis of Experimental Mechanism Hybird with Carbon Emission Assessment

2021 ◽  
Vol 13 (2) ◽  
pp. 452
Author(s):  
Junfang Sun ◽  
Angran Tian ◽  
Zheyuan Feng ◽  
Yu Zhang ◽  
Feiyang Jiang ◽  
...  
Keyword(s):  
Soil Remediation ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Carbon Emission ◽  
Physical Adsorption ◽  
Extraction Procedure ◽  
Economic Benefits ◽  
Zero Valent Iron ◽  
Order Kinetic ◽  
Low Carbon

Carbon emission is one of the main causes of global climate change, thus it is necessary to choose a low-carbon method in the contaminated soil remediation. This paper studies the adsorption ability of ZVI on Pb(II) contaminated soils under different working conditions. The removal efficiency of Pb(II) was 98% because of the suitable ZVI dosage, log reaction time and low initial solution concentration. The whole balancing process was much fast according to the pseudo-second-order kinetic and Freundlich isothermal model. Moreover, sequential extraction procedure (SEP) showed Pb(II) was transformed from Fe/Mn oxides-bound form to residual form in Pb(II) contaminated soils. From scanning electron microscopy (SEM), Brunauer-Emmett-Teller method (BET) and X-ray diffraction (XRD) results, it was confirmed that zero-valent iron (ZVI) stabilizes Pb(II) pollutants mostly through the combination of chemical adsorption and physical adsorption. The economic and carbon emission assessments were used to compare the cost and carbon emissions of different methods. The results show that ZVI adsorption has excellent economic benefits and low carbon emission.

scholarly journals Assessment of the effect of reactive materials on the content of selected elements in Indian mustard grown in Cu-contaminated soils

2016 ◽  
Vol 28 (1) ◽  
pp. 53-60 ◽  
Author(s):  
Maja Radziemska ◽  
Jerzy Jeznach ◽  
Zbigniew Mazur ◽  
Joanna Fronczyk ◽  
Ayla Bilgin
Keyword(s):  
Contaminated Soils ◽  
Environmental Remediation ◽  
Indian Mustard ◽  
Calcium Content ◽  
Positive Influence ◽  
Zero Valent Iron ◽  
Control Group ◽  
Reactive Materials ◽  
Phosphorus And Potassium ◽  
Copper Contaminated

Abstract Zero-valent iron (ZVI) represent a promising agent for environmental remediation. The research was aimed to determine the influence of copper in doses of 0, 80, 150, 300, and 600 mg Cu·kg−1 of soil as well as ZVI, and lignite additives on the content of macroelements in the Indian mustard (Brassica juncea (L.) Czern.). The average accumulation of analyzing elements in Indian mustard grown in copper contaminated soil were found to follow the decreasing order Mg > Na > P > Ca > K > N. Soil contamination at 600 mg Cu·kg−1 of soil led to the highest increase in P, Mg, N, and Ca content. The application of ZVI had a positive influence on the average phosphorus and potassium content of Indian mustard. Moreover, the application of ZVI and lignite had a positive influence on the average Mg and Ca content in the above-ground parts of Indian mustard. From the analyzed reactive materials, the application of lignite was shown to be the most effective resulting in the decrease in the average nitrogen and calcium content when compared to the control crop. Calcium content in plants from the control group, without the addition of zero-valent iron, and powered lignite (control), was positively correlated with increasing doses of copper.

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