Phytoremediation on the brink of commercialization

Article Abstract:

A number of environmental technology companies are capitalizing on phytoremediation to reduce soil contamination. These companies are actively engaged in identifying and propagating plant species that have been found to effectively absorb trace metals or organic pollutants present in the soil. Among these plants species are members of the mustard family and grass family as well as poplars. Some plant species can also volatilize pollutants they have absorbed from the soil. Estimated costs for phytoremediation is $0.05/cu.m, compared with in situ remediation which may cost between $10 to $100/ cu.m.

Engineering Services, Waste Management and Remediation Services, Environmental Engineering, Toxic Substances Control, Environmental aspects, Poisons, Plants, Plants (Organisms), Environmental policy, Hazardous waste management industry, Control, Soil pollution, Pollution control, Soil disinfection

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Recovery of zinc(II) from HCI spent pickling solutions by solvent extraction

Article Abstract:

This study undertakes the use of solvent extractants ALAMINE336, CYANEX302, CYANEX921, CYANEX923 and tributyl phospahte to recover zinc(II) from HCI spent pickling solutions. The study was conducted by the Departament of d'Enginyeria Quimica, Universitat Politecnica de Catalunya, Spain, and the Institute of Chemical Technology and Engineering, Poznan University of Technololgy.

Spain, Statistical Data Included, Recycling industry, Poznan University of Technology, Universitat Politecnica de Catalunya

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Immobilization of zinc and cadmium by montmorillonite compounds: effects of aging and subsequent acidification

Article Abstract:

Researchers from the Institute of Terrestial Ecology, Switzerland, investigated the effects of aging and acidification of aluminum treated montmorillonites in the remediation and immobilization of heavy metals in arable soils.

Switzerland, Ground or Treated Mineral and Earth Manufacturing, Minerals, ground or treated, Absorbent Clay Products, Montmorillonite, Absorbents, Institute of Terrestial Ecology

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