نتایج جستجو برای: degradation of environment
تعداد نتایج: 21204425 فیلتر نتایج به سال:
Background: 4-Chlorophenol is used frequently in industries including refineries petrochemical, industries pesticide industries and many others. This compound causes damage to environment. The purpose of this research was the survey of 4-chlorophenole degradation by Fe°/H2O2 of synthetic wastewater and resulting intermediate compounds. Methods: This study is an applied- experimental researc...
Petroleum hydrocarbon contamination is a major global prevalent issue in the petroleum sector. This research focuses on evaluating biodegradation of three Gram-negative bacilli, isolated from cowpea planted soil, contaminated with kerosene. The Gram negative bacilli strains have been characterized and identified, using MicrobactTM ID24E systems for the identification of Enterobacteriaceae and c...
Background and Objectives : Propylene glycol is the main compound of anti-freezing chemicals. A significant amount of propylene glycol is released to the environment after application and contaminates the soil. The main objective of this study was to determine the biological removal of propylene glycol from wastewater and its degradation in soil by the isolated bacteria from activated sludge pr...
degradation model was introduced as an instrument of environmental impact assessment (eia) in iran. several methods are introduced in rapid environmental assessment, but none of them have evaluated landscape level. thus, the main objective of this research is to introduce a new spatial method for eia by using landscape metrics. a benefit of rapid assessment by using ecological landscape metrics...
Mn3O4 nanoparticles has been synthesised from Manganese (II) acetate and Simarouba Glauca leaf extract using microwave heating. This novel method of synthesis of Mn3O4 is fast, low-cost, non-toxic and environment friendly. The synthesised product was characterised by powder X-ray diffraction(XRD),Fourier transform infrared spectroscopy( FT-IR), Ultraviolet-Visible spectroscopy( UV-Visible), X-r...
Background: A number of microorganisms and their enzymes have been reported as xanthan depolymerizers. Paenibacillus species are well-known polysaccharide hydrolyzing bacteria. However, Paenibacillus alginolyticus and Paenibacillus sp.XD are the only species in the genus which are now known to degrade xanthan.Objectives: Complete biodegradation of the xan...
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