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Electrokinetic remediation, also termed electrokinetics, is a technique of using direct electric current to remove organic, inorganic and heavy metal particles from the soil by electric potential. [1] [2] [3] The use of this technique provides an approach with minimum disturbance to the surface while treating subsurface contaminants.
Phytoextraction is a subprocess of phytoremediation in which plants remove dangerous elements or compounds from soil or water, most usually heavy metals, metals that have a high density and may be toxic to organisms even at relatively low concentrations. [1]
Phytoremediation technologies use living plants to clean up soil, air and water contaminated with hazardous contaminants. [1] It is defined as "the use of green plants and the associated microorganisms, along with proper soil amendments and agronomic techniques to either contain, remove or render toxic environmental contaminants harmless". [2]
A system to achieve this can consist of a “feeder layer” of soil suspended above a contaminated stream through which plants grow, extending the bulk of their roots into the water. The feeder layer allows the plants to receive fertilizer without contaminating the stream, while simultaneously removing heavy metals from the water. [4]
Wallace Laboratories, for instance, charges $100 to test for PH levels, salinity, fertility (nutrients in the soil) and trace heavy metals such as lead and arsenic.
It was discovered to be a Zn hyperaccumulator. Because of its ability to extract vast quantities of heavy metals from soils. [19] When grown on mildly polluted soils, a closely related species, Thlaspi ochroleucum, is a heavy metal-tolerant plant, but it accumulates much less Zn in the shoots than T. caerulescens.
Now, amid the ruins of homes burned to the ground in the Los Angeles area blazes this month, workers are starting the massive, delicate task of removing hazardous debris as a prelude to rebuilding ...
Phytomining, sometimes called agromining, [1] is the concept of extracting heavy metals from the soil using plants. [2] Specifically, phytomining is for the purpose of economic gain. [ 3 ] The approach exploits the existence of hyperaccumulators , proteins or compounds secreted by plants to bind certain metal ions.