Results 191 to 200 of about 1,638,171 (244)

Decontamination of pesticides in soils

1969
The soil, as a medium for decontamination, offers a large number of processes by which organic substances can be destroyed. As such, progressive accumulation of organic pesticides would appear to be unlikely. Unfortunately, the chemical and physical properties of certain insecticides and herbicides afford them a degree of stability against the natural ...
P C, Kearney, E A, Woolson, J R, Plimmer, A R, Isensee   +3 more
openaire   +2 more sources

Photocatalytic soil decontamination

Chemosphere, 1992
Abstract A photocatalytic treatment is evaluated for the decontamination of soils containing 2-chlorophenol, 2,7-dichlorodibenzodioxin and atrazine. In the laboratory the contaminated soils were mixed with a photocatalyst (TiO2) in a aqueous slurry (up to 60 g L−1 of solid mixture) and exposed to simulated solar radiation.
PELIZZETTI, Ezio, MINERO, Claudio, V. Carlin, E. Borgarello   +3 more
openaire   +2 more sources

Decontamination of soil polluted by hydrocarbons

Materials Today: Proceedings, 2022
Abstract The objective of this work is to study the coupling power of hydrogen peroxide and ozone (Peroxone) on the decontamination of soil contaminated by Total Petroleum Hydrocarbons (TPH). The oxidation takes place simultaneously by the exchange of electrons, which will activate the decomposition of hydrogen peroxide into OH radicals.
Smara Mahdia, Khalladi Razika, Moulai-Mostefa Nadji, Ibrir Abdellah   +3 more
openaire   +1 more source

Decontamination of radioactive cesium in soil

Journal of Radioanalytical and Nuclear Chemistry, 2014
Agricultural soil containing radioactive cesium was decontaminated using an extraction method involving aqueous potassium solutions. Results demonstrated that the potassium solution could extract radioactive cesium from soil artificially contaminated with 137Cs, although extraction rate decreased as time after contamination increased.
M Yanaga
exaly   +2 more sources

Decontaminating soil with enzymes

Environmental Science & Technology, 1992
Xenobiotics are manmade compounds often introduced into the environment at concentrations that cause undesirable effects. They can be transformed as a result of biotic and abiotic processes, leading to changes in their chemical state and ultimately in their toxicity and reactivity.
openaire   +1 more source

Decontamination of Metal-Containing Soils

1995
Methods of removing metals from spoils derived from metalliferous mining were assessed as an alternative to traditional methods of land reclamation. Both enhanced gravity separation and chemical leaching were effective for oxidised spoils. The possibility of combined process routes in order to maximise metal removal are discussed.
J. P. Palmer, K. P. Williams, H. J. Prosser   +2 more
openaire   +1 more source

Applications of Bentonite to Soil Decontamination

Revista de Chimie, 2018
A calcium bentonite from Orasu Nou deposit (Satu Mare Romania) was used as raw material. We have conducted laboratory experiments to determine the influence of bentonite on the degree of heavy metal retention. It has been observed that the rate of retention increases as the heavy metal concentration decreases.
Marin Rusanescu, Carmen Otilia Rusanescu, Gheorghe Voicu, Mihaela Begea   +3 more
openaire   +1 more source

Biotechnological Aspects of Soil Decontamination

2014
Soils have been subjected to several contaminants that vary in concentration and composition. Soil pollution causes significant damage to the environment and human health as a result of their mobility and solubility. Significant progress has been made in regulating soil pollution, with a parallel development of methodologies for soil assessment and ...
V. Sheoran, A. Sheoran
openaire   +1 more source

Ecological recovery of decontaminated soil.

1988
Once polluted soil is thermically cleaned up, a dead product is the result. However, the Dutch government emphasizes the so-called principle of multifunctionality of the soil. The most vulnerable function of the soil is the ecological function. To assess the possibilities of ecological recovery of cleaned soils, a field experiment was performed in a ...
Kappers, FI, Esbroek, MLP
openaire   +3 more sources

Soil Pollution and Decontamination in Spain

European Energy and Environmental Law Review, 2002
Summary: In Spain there is no legal framework that collects all aspects of laws relating to the environment. In the absence of over-arching legislation this article examines the control and remediation of soil pollution in Spain looking first at administrative law aspects — its concepts; the identification of polluted soil; registration of polluted ...
openaire   +1 more source