It was reported that the titanium-impregnated ion-exchange membranes supported on inert fibrils can be effective in the removal of radionuclides like strontium and cesium from caustic aqueous nuclear waste environments.
Despite widespread use of engineered nanomaterials (ENMs) in commercial products and their potential disposal in landfills, the fate of ENMs in solid waste environments are still not well understood.
Laboratory-scale experiments were conducted to evaluate how organics (humic acid: 20 800 mg/L), ionic strength (100 400 mM NaCl), and pH (6 8) typical of mature leachates influence carbon nanotube surface charge, relative stability, and mobility through representative solid waste environments.
These bags pose a problem not only in traditional waste environments but recycling facilities as well.
Survey of the National Center for Biotechnology Information (NCBI) revealed the presence of 106 deposited sequences of fungi identified in olive mill waste environments.
Indeed, olive mill waste environments are dominated by bacterial taxa that are specialized in degrading the recalcitrant components of olive mill wastes [ 29, 30].
Being metastable and considered short-lived in mine waste environments, one possibility is that sulfite rapidly oxidizes non-enzymically to sulfate, thiosulfate or glutathione S-sulfonate in the presence of Fe(III) [ 70, 71] or sulfur [ 72].
A database survey of 16S rRNA gene sequences (585 records in total) obtained from olive mill waste environments revealed the dominance of members of Alphaproteobacteria, Betaproteobacteria, Gammaproteobacteria, Firmicutes, and Actinobacteria.
Thus, our results show that substantial incorporation of U VI) into hematite can occur, which is potentially a significant new pathway to immobilize U VI) and has clear implications for the environmental mobility of this important radionuclide, especially in high pH conditions relevant to engineered waste environments.
