scholarly journals Remediation of iron oxide bound Pb and Pb-contaminated soils using a combination of acid washing agents and l-ascorbic acid

RSC Advances ◽  
2020 ◽  
Vol 10 (62) ◽  
pp. 37808-37817
Author(s):  
Quan Li ◽  
Yilian Li ◽  
Zhe Yang ◽  
Xiang Li ◽  
Zhi Tang ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Iron Oxide ◽  
Contaminated Soils ◽  
Temperature Dependency ◽  
Acid Washing

In this study, the reductants and time–temperature dependency of dissolved FeOx–Pb were studied experimentally.

The effects of non-stabilised and Na-carboxymethylcellulose-stabilised iron oxide nanoparticles on remediation of Co-contaminated soils

Chemosphere ◽  
2020 ◽  
Vol 261 ◽  
pp. 128123
Author(s):  
Solmaz Bidast ◽  
Ahmad Golchin ◽  
Ahmad Baybordi ◽  
Abbasali Zamani ◽  
Ravi Naidu
Keyword(s):  
Iron Oxide ◽  
Iron Oxide Nanoparticles ◽  
Contaminated Soils ◽  
Oxide Nanoparticles

scholarly journals ROLE OF MEDIUM SUPPLEMENTATION OF GROWTH MODULATORS TO ALLEVIATE CADMIUM-INDUCED OXIDATIVE STRESS IN MAIZE

2019 ◽  
Vol 56 (03) ◽  
pp. 723-733
Author(s):  
Azka Javaid
Keyword(s):  
Oxidative Stress ◽  
Ascorbic Acid ◽  
Contaminated Soils ◽  
Soluble Sugars ◽  
Sand Culture ◽  
Great Promise ◽  
Cd Toxicity ◽  
Soluble Phenolics ◽  
Toxicity Effect ◽  
Medium Supplementation

Cadmium (Cd) toxicity has been a wide-spread phenomenon affecting plant metabolic functions due to excessive production of reactive oxygen species. This study was aimed at medium supplementation of optimized levels of growth modulators viz., salicylic acid (SA, 500 µM), ascorbic acid (AsA, 500 µM), thiourea (TU, 400 µM) and hydrogen peroxide (H2O2, 100 µM) in improving Cd tolerance in maize (Zea mays L. hybrid P-1543) in sand culture under net house conditions. All treatments were applied in the growing medium by dissolving in water. Results revealed that Cd stress (1000 µM) severely reduced the shoot and root dry mass and leaf area per plant and endogenous production of osmoprotectants (soluble sugars, free proline and glycinebetaine), phenolic compounds (soluble phenolics, flavonoids and anthocyanins) and vitamins (ascorbic acid, niacin and riboflavin) in shoot and root tissues indicating that Cd was highly toxic to the metabolic pathways. However, medium supplementation of the selected growth modulators was quite effective in reversing the Cd toxicity effect. Among the medium supplemented compounds, SA and AsA were more effective in reversing the Cd toxicity effect than TU and H2O2. Presence of tight correlations of growth attributes with metabolites levels substantiated that medium supplementation was greatly effective in orchestrating the endogenous metabolite levels and supporting maize growth under Cd toxicity. A greater effectiveness of the SA, AsA and TU can be attributed to their molecular structure and physiological properties in scavenging ROS and reducing oxidative stress. The results may have great promise and practical implications for growing maize successfully in the marginally Cd contaminated soils.

scholarly journals Ascorbic acid-mediated synthesis and characterisation of iron oxide/gold core–shell nanoparticles.

2015 ◽  
Vol 11 (5) ◽  
pp. 370-382 ◽  
Author(s):  
Ankur Sood ◽  
Varun Arora ◽  
Jyoti Shah ◽  
R.K. Kotnala ◽  
Tapan K. Jain
Keyword(s):  
Ascorbic Acid ◽  
Iron Oxide ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Gold Core ◽  
Core Shell Nanoparticles

Study on Chemical Stabilization in Arsenic Contaminated Soil: A Review

2013 ◽  
Vol 295-298 ◽  
pp. 1089-1092 ◽  
Author(s):  
Yang Li ◽  
Jia Xi Tang ◽  
Tao Zhang ◽  
Mei Hua Lian ◽  
Xi Zhuo Tian
Keyword(s):  
Iron Oxide ◽  
Future Study ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Chemical Stabilization ◽  
Technology Application ◽  
Remediation Technology ◽  
Paper Review ◽  
Alkaline Material

This paper review the chemical stabilization in arsenic contaminated soil use the in situ chemical stabilization technology. Application of iron oxide, alkaline material and phosphorus are very effective agents to fix the arsenic-contaminated soil. In addition, the future study on remediation technology for arsenic-contaminated soils was prospected.

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