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Acta Microbiologica et Immunologica Hungarica, 2001
Large quantity of aged petroleum oil contamination such as dehydrated oil sludge, generated in the disposal process of oil-containing sewage in Indonesia. This study aims to investigate the OSCS removal by mean of bioremediation technique. Results found that petrofilic consortia and biosurfactants addition increased the removal efficiency up to 46% and 85%, respectively. At full scale application, this technique succeed in removing of 46 g TPH per kg soil from 4 883 m3 of OSCS during 16 mo of treatment. These results suggest that petrofilic consortia and biosurfactants addition stimulate the biodegradation and overcome the limitation of OSCS degradation process.
Abstract Hexavalent chromium contamination of groundwater and soil possess a significant threat to human health and the environment. The remediation by reduction, Cr(VI) o Cr(III), with a variety of reducing agents and techniques are explored for many years. In this study, Fe(II)–montmorillonite (Fe(II)–mont) was interacted with K 2 Cr 2 O 7 solution at different pH and temperature. The decreasing Cr(VI) concentration was monitored by UV-Vis spectrophotometer. In general, the Cr(VI) reduction was rapid at acidic pH and increases with temperature up to 40 0 C. There was 100% reduction was achieved in pH 3 – 5 at 30 and 45 min respectively. At different temperature time taken for 100% reduction at 0 0 C, RT (30 0 C) and 40 0 C was 120, 60 and 30 min respectively. The reduction followed by immobilization of Cr on the spent clay mineral was evident from FESEM/EDX and chemical extraction analysis. The results also revealed that the prepared Fe(II)–mont could be potentially applied as a adsorbent enabling promising applications for the removal of Cr(VI) from aqueous solution.
Voyag e d 'ét ud es à Mar s eille L e s C a h i e r s d u s r d u n ° 6 – av r i L 2 0 0 8
Contextos: Estudios de Humanidades y Ciencias Sociales, 2015
Argumentos. Estudios críticos de la sociedad, número 102, mayo-agosto , 2023
Graefe's Archive for Clinical and Experimental Ophthalmology, 1996
IEEE Transactions on Circuits and Systems for Video Technology, 2018
Journal of Chromatography A, 1989
Review of Metaphysics , 2024
Frontiers in Human Neuroscience, 2021
The Journal of Molecular Diagnostics, 2004
Yale Law Journal, 1973
Journal of Higher Education Outreach and Engagement, 2018