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Magnetic biochar for environmental remediation: A review
Bioresource Technology, 2020The difficulty of separating the powdered biochar from the environmental medium may lead to secondary pollution and hinder the large-scale application of biochar as an adsorbent. An effective strategy to solve this bottleneck is to introduce transition metals and their oxides into the biochar matrix, creating easily separable magnetic biochar. Magnetic
Yunqiang, Yi +7 more
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Environmental Applications of Magnetic Measurements
Science, 1980A wide range of examples of the application of magnetic measurements to environmental studies illustrate the advantages of magnetic techniques over conventional methods. Magnetic measurements, in both the field and the laboratory, are particularly useful for reconnaissance work because of their speed and flexibility, Quantification as well as simple ...
R, Thompson +6 more
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Magnetic Nanocomposites for Environmental Remediation
2021Rapid population growth and industrial development have led to increasing environmental pollution caused by a variety pollutants such as radionuclides, heavy metals, and pesticides in surface and underground water resources. Magnetic nanoparticles (MNPs) and nanocomposites have received significant attention over recent decades in both fundamental ...
S. Ghasemi +2 more
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Magnetic nanocomposites for environmental remediation
Advanced Powder Technology, 2013This article provides an overview of current research activities on the synthesis and applications of magnetic nanocomposites, especially highlights their potential environmental remediations such as heavy metal (Cr, As, Pd, Hg) removal. After a brief introduction of the emergency situation of heavy metal pollution all over the world and current ...
Jiahua Zhu +8 more
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Environmental characterization with magnetics and STOLS
Proceedings of the IEEE, 1994The application of techniques utilizing total field magnetic anomaly measurements can contribute significantly to the environmental characterization of lands contaminated with hazardous, toxic, or radioactive wastes. By addressing the correlated problem of detection and characterization of HTRW waste containers, predominantly made of ferromagnetic ...
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Magnetic Measurement System and Environmental Magnetic Field Compensation at CEM
2024 IEEE International Magnetic Conference - Short papers (INTERMAG Short papers)Intermag 2024 Presentation: GA: Magnetic Sensor ...
Sergio Moltó González +2 more
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Magnetic Nanoparticles for Environmental Management
2022Magnetic nanoparticles are an emerging technique that has attracted attention in recent years in nanotechnology, biomedical, electronics, environmental science, and engineering applications. Nanoparticles have optical, electrical, catalytic, and thermal properties with their supermagnetic properties, large surface area, and biocompatibility.
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Environmental degradation of NdFeB magnets
Journal of Alloys and Compounds, 2009Abstract A mechanism for pitting of NdFeB magnet because of differential-aeration beneath a water droplet is proposed and observations of the localised corrosions are presented. NdFeB magnets exhibit general corrosion along the grain boundaries when etched in Viella’s reagent.
Gaolin Yan +3 more
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Quieting an environmental magnetic field without shielding
Review of Scientific Instruments, 2020We construct an active magnetic compensation device and propose an efficient magnetic compensation method that suppresses a wider range of frequencies and amplitudes of time-varying magnetic fields than conventional methods. This system can compensate for all frequencies in the bandwidth of the sensors used by analyzing and extracting the spectral ...
Kangda Xiao +7 more
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Environmental magnetism — A personal perspective
Quaternary Science Reviews, 1991Abstract Environmental magnetism is a versatile methodology applicable to a wide range of environmental studies and contexts. The complexity and unfamiliarity of many natural magnetic assemblages, coupled with the very versatility and sensitivity of the measurements can often limit interpretations at present, and there is an urgent need to improve ...
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