نتایج جستجو برای: biotreatment
تعداد نتایج: 197 فیلتر نتایج به سال:
Oil-polluted soil is one of the major sources biosurfactant producing bacteria. This study was to optimization, degreasing and de-staining potentials glycophospholipid produced by B. anthracis strain S62A isolated from spent engine oil-polluted soil. Five (5) bacterial isolates associated with oil – polluted primarily screened for production using emulsification index test, displacement surface...
Polycyclic Aromatic Hydrocarbons (PAHs) are among of potentially hazardous chemicals for environment and cause health concern. These compounds exhibit carcinogenic and/or mutagenic properties and are listed by the United States Environmental Protection Agency (USEPA) as priority pollutants. Polycyclic Aromatic Hydrocarbons are hardly degraded and therefore bioremediation is often considered as...
Following technological advancements and integrated municipal solid waste management in recent decades, various methods such as recycling, biotreatment, thermal treatment, and sanitary landfills have been developed and employed. Creating sanitary landfills is a major strategy in the integrated solid waste management hierarchy. It is cheaper and thus more common than other disposal methods. Sele...
Membrane Attached Biofilms (MABs) are being used in an increasing variety of bioreactors. Extractive Membrane Bioreactors (EMB) have been developed at Imperial College (1,2) for the aerobic biotreatment of toxic organics which employ MABs for treating Volatile Organic Compounds (V0Cs)-containing wastewaters without incurring air-stripping problems. Investigations of the key factors controlling ...
In this study, methylene blue (MB) wastewater was biotreated by anaerobic granular sludge (AnGS), and the fluorescent components of extracellular polymeric substances (EPS) and complexation mechanism were evaluated. Based on the experimental data, the sorption of MB by both live and inactivated AnGS followed the pseudo-second-order model, and the adsorption isotherm conformed well to the Langmu...
Textile dying processes often pollute wastewater with recalcitrant azo and anthraquinone dyes. Yet, there is little development of effective and affordable degradation systems for textile wastewater applicable in countries where water technologies remain poor. We determined biodegradation of actual textile wastewater in biofilters containing rice husks by spectrophotometry and liquid chromatogr...
Magnesium oxide nanoparticles (MgO-NPs) were synthesized using the fungal strain Aspergillus terreus S1 to overcome disadvantages of chemical and physical methods. The factors affecting biosynthesis process optimized as follows: concentration Mg(NO3)2·6H2O precursor (3 mM), contact time (36 min), pH (8), incubation temperature (35 °C). characterization biosynthesized MgO-NPs was accomplished UV...
Abstract Biotechnologies mainly based on precipitation of chemical compounds produced by microbial metabolism can be used as biotreatment or bioformulation construction materials. Bioformulation cement-based materials has been a common research practice, though its application to earthen-based building is still limited. Although earth mortars are vulnerable water damage, they nowadays often pla...
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