The environmental issues concerning uranium mining and milling have long been paid considerable attention in wide aspects in the world [1–4]. It is well known that the industrial activities of mining and milling of uranium ores can lead to release of a tremendous amount of radioactive pollutants (wastewater and tailings, as representative carrier) that consist typically of U and Th compounds. A...

The domestic and foreign scholars found that biochar prepared from waste crops, animal manure, tissues has a good adsorption effect on radioactive pollutants. Biochar is an ideal material for the adsorbent. This article summarizes preparation methods modification of biochar, characteristics to heavy metals elements. also points out problems development trends in current research biochar.

INTRODUCTION The “Hanford Scenario” refers to an acute accidental release of radioactive I from the stack of the Hanford (USA) Purex Chemical Separations Plant that occurred between 2 and 5 of September 1963 (BIOMASS, 1999). From the environmental impact point of view it is a very interesting case study for the evaluation of computational systems that simulate the atmospheric dispersion, deposi...

Sediment samples from the Tisza River in Serbia were investigated for possible TENORM pollutants. The radionuclide content of the samples was determined by means of low-level high-resolution gamma-spectroscopy. In addition to the members of the natural radioactive chains of (238)U and (232)Th and the natural (40)K, Chernobyl origin (137)Cs was detected in 26 of the 28 samples tested. The higher...

Bioremediation refers to the use of organisms to remove environmental pollutants. Besides identifying different new plasmids capable of degrading environmental pollutants, many attempts have been taken by the genetic engineers to enhance the bioremediation potential of different microorganisms. Escherichia coli was engineered to convert chlorinated solvents such as trichloro ethylene and the hi...

Studies of the last decades have shown that peat and peat-bogs function as an important factor for environment protection. Due to good take-up and filtering qualities, peat-bog deposits perform to absorb petroleum products, different natural and human-made chemical and radioactive pollutants. Due to low salinity of bog water and turf humic acids, the peat-bed is capable to extract cations of ca...

OBJECTIVE The assay of DNA mismatch repair (MMR) activity can be used as a biomarker for environmental condition detection and human disease diagnosis. Radioactive ³²P-endlabeled DNA containing mismatch is extensively used as the substrate for MMR activity analyses. The aim of the present study is to develop a simple non-radioactive, but equally specific and sensitive method for the MMR activit...

Traditionally, the concept of ALARA has been the basis for limitation and optimisation of releases of radioactive substances from nuclear power reactors in order to protect human health. In recent years, it has been discussed whether the ALARA principle can be applied also to protect the environment. For the protection of the environment, in particular for non-nuclear pollutants, the precaution...