Self-cementation of the alkali-activated volcanic tuff coupling with thiol-functionalized expanded perlite that enhances the solidification and stabilization of the mercury-contaminated soil

Huang, Tao; Zhang, Shuwen; Zhou, Lulu; Li, Aiyin; Tao, Hui

doi:10.1016/j.cej.2021.131059

Cited by 41 publications

(2 citation statements)

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“…The acidified environment enhances the activity of heavy metal ions (HMIs) in the soil, further resulting in an increased uptake of these harmful substances by plants, thereby posing a threat to human health . Effort has been made from different parties. , Applying alkaline substances such as lime to directly neutralize the soil acidity is a usual method for remediating acidic soil. However, excessive lime applications can result in soil hardening and nutrient imbalances.…”

Section: Introductionmentioning

confidence: 99%

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Remediation of Cd(II)-Contaminated Acid Soil Using an Activated Carbon Nanocomposite from Solid Organic Waste

Yang,

Wang,

Chen

et al. 2024

ACS Sustainable Resour. Manage.

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A new composite nanomaterial was synthesized and used to remediate acidic soil contaminated with heavy metal ions. The novel material, named as acidic soil remediation agent (ASRA), was prepared by combining humus (HS), attapulgite (ATP) and hydrated calcium silicate (CSH) in a facile way. ASRA demonstrated the ability to form a dispersed layered porous structure and showed excellent Cd(II) removal efficiency (about 73.53% for 1 day and 92.81% for 5 days), in addition to immobilizing Pb 2+ and Cu 2+ effectively. Furthermore, the application of ASRA effectively decreased K + loss by approximately 46.79%, raised the soil pH from 5.38 to 7.37, and achieved the immobilization and passivation of Cd(II) ions through synergistic interactions among the components of ASRA. This work provided an economic strategy for fabricating efficient soil remediation materials and also solved the environmental pollution problems posed by industrial and agricultural wastes, exhibiting great promise in the utilization of solid wastes to address soil and water heavy-metal contaminants.

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Section: Introductionmentioning

confidence: 99%

“…3 Effort has been made from different parties. 4,5 Applying alkaline substances such as lime to directly neutralize the soil acidity is a usual method for remediating acidic soil. However, excessive lime applications can result in soil hardening and nutrient imbalances.…”

Section: Introductionmentioning

confidence: 99%