Evaluation of the Effectiveness of Composite Mineral Remediation Agents on Cd Immobilization in Soils and Rice

Zhang, Junji; Shi, Zhou; Liu, Shuting; Ni, Shijun; Wang, Xinyu; Huang, Weijian

doi:10.1080/15320383.2021.1960795

Cited by 3 publications

(3 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, none of the studied materials could completely immobilize Cd(II), as demonstrated in recent studies. 38,50,66 Similarly, Pb(II) has a higher ionic radius than other HMs; thus, it cannot be incorporated effectively into defects or nanopores of amendments and is incapable of isomorphically substituting other elements from the nanoparticle structure. Moreover, because of the weak binding between Cd(II)/Pb(II) and the surface functional groups of materials, such as biochar, these metals can readily desorb under favorable conditions and become available in the soil solution.…”

Section: Introductionmentioning

confidence: 99%

Towards engineering mitigation of leaching of Cd and Pb in co-contaminated soils using metal oxide-based aerogel composites and biochar

Sanaei,

Sarmadi,

Dehghani

et al. 2023

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Towards engineering mitigation of leaching of Cd and Pb in co-contaminated soils using metal oxide-based aerogel composites and biochar

Sanaei,

Sarmadi,

Dehghani

et al. 2023

Environ. Sci.: Processes Impacts

View full text Add to dashboard Cite

show abstract

“…HMs accumulate and migrate through the crop planting system [1] and enter the human body through the food chain, and accumulation to a certain extent poses a threat to human health [2]. Studies have shown that the most important route of exposure to HMs in humans is dietary exposure, where HMs are passed through the food chain and accumulate in the human body [3,4]. Rice is a major food crop in China, with more than 65% of the country's population consuming rice as a staple food [5], and rice has a strong enrichment capacity for many HMs [6], especially cadmium (Cd), chromium (Cr), and arsenic (As), which can be harmful to human health.…”

Section: Introductionmentioning

confidence: 99%

Informer-Based Safety Risk Prediction of Heavy Metals in Rice in China

Dong

Jiang

et al. 2023

Foods

View full text Add to dashboard Cite

Focused supervision and early warning of heavy metal (HM)-contaminated rice areas can effectively protect people’s livelihood security and maintain social stability. To improve the accuracy of risk prediction, an Informer-based safety risk prediction model for HMs in rice is constructed in this paper. First, based on the national sampling data and residential consumption statistics of rice, we construct a dataset of evaluation indicators that can characterize the level of rice safety risk so as to form a safety risk space. Second, based on the K-medoids clustering algorithm, we classify the rice safety risk space into levels. Finally, we use the Informer neural network model to predict the safety risk indicators of rice in each province so as to predict the safety risk level. This study compares the prediction accuracy of a self-constructed dataset of rice safety risk assessment indicators. The experimental results show that the prediction precision of the method proposed in this paper reaches 99.17%, 91.77%, and 91.33% for low, medium, and high risk levels, respectively. The model provides technical support and a scientific basis for screening the time and area of HM contamination of rice, which needs focus.

show abstract

“…Consequently, the remediation of Cd-contaminated soils has become a research focus for scientists worldwide [4]. Many studies have been conducted in China and globally on remediation techniques for heavy-metal-contaminated soils [5]. As a result of its ease of use, high efficacy, and cheap cost, in situ stabilization using several soil amendments is an economical and effective method for treating Cd-contaminated cultivated land [6].…”

Section: Introductionmentioning

confidence: 99%

Effects of the Combined Application of Chinese Milk Vetch (Astragalus sinicus L.) and Red Mud to Remediate the Cadmium-Polluted Acidic Paddy Soil

et al. 2022

View full text Add to dashboard Cite

In this study, we conducted field experiments to assess the effects of the combined application of Chinese milk vetch (Astragalus sinicus L., CMV) and red mud (RM) to remediate the cadmium-polluted acidic paddy soil. The results showed that the combined application increased the yield component index and improved the grain yields, compared with the control, RM1, RM2, and CMV treatments. However, the increased range of soil pH values in the CMV-RM1 and CMV-RM2 treatments was smaller than that of the RM1 and RM2 treatments at the different rice growth stages. The soil organic matter (SOM) contents of the RM-only treatments did not differ throughout the whole period, but were significantly different (p < 0.05) between CMV-RM2 and the control. Compared with the control, the combined application decreased the concentration of exchangeable Cd in the early rice soil. The combined application of CMV and RM substantially decreased the rice uptake of Cd. However, we found no significant difference (p < 0.05) between the CMV-RM1 and CMV-RM2 treatments. Therefore, compared with remediation with RM or CMV alone, we recommend the combined application of CMV and RM as an economical, highly effective, and replicable amendment for remediating acidic, Cd-polluted paddy soil. Considering the restorative effect and proper use of RM, we recommend CMV-RM1 treatment.

show abstract

Evaluation of the Effectiveness of Composite Mineral Remediation Agents on Cd Immobilization in Soils and Rice

Cited by 3 publications

References 58 publications

Towards engineering mitigation of leaching of Cd and Pb in co-contaminated soils using metal oxide-based aerogel composites and biochar

Towards engineering mitigation of leaching of Cd and Pb in co-contaminated soils using metal oxide-based aerogel composites and biochar

Informer-Based Safety Risk Prediction of Heavy Metals in Rice in China

Effects of the Combined Application of Chinese Milk Vetch (Astragalus sinicus L.) and Red Mud to Remediate the Cadmium-Polluted Acidic Paddy Soil

Contact Info

Product

Resources

About