نتایج جستجو برای: pollutant oxidation
تعداد نتایج: 136739 فیلتر نتایج به سال:
conclusions to solve the above mentioned difficulties, fundamental study most be carried out to discover the novel methods of ferrate(vi) production, focusing on increasing the product stability and the production yield. results despite the existence of these technologies, there is no full-scale application of ferrate(vi) in the water and wastewater industry which it is due to difficulties asso...
Air pollution by nitrogen oxides represents a serious environmental problem in urban areas where numerous sources of these pollutants are concentrated. One approach to reduce the concentration of these air pollutants is their light-induced oxidation in the presence of molecular oxygen and a photocatalytically active building material which uses titanium dioxide as the photocatalyst. Herein, res...
a general overview on the prospective of various oxidation and combined processes in the treatment of tannery industry effluent are reported. various oxidation and combined processes such as uv/h2o2/hypochlorites, fenton and electro-oxidation, photo-chemical, photo-catalytic, electro-catalytic oxidation, wet air oxidation, ozonation, biological followed by ozone/uv/ h2o2, coagulation or ele...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
Introduction: Emission of volatile organic compounds through industrial processes to the environment has been received more attentions currently. Photocatalytic oxidation process as a new emerging technique in air purification can be substituted for conventional techniques such as activated carbon adsorption. In photocatalytic oxidation process, pollutant molecules decompose to water and carbo...
A general overview on the prospective of various oxidation and combined processes in the treatment of tannery industry effluent are reported. Various oxidation and combined processes such as UV/H2O2/Hypochlorites, Fenton and Electro-oxidation, photo-chemical, photo-catalytic, electro-catalytic oxidation, wet air oxidation, ozonation, biological followed by ozone/UV/ H2O2, coagulation or electro...
In the present study, recent progress in using microwave energy to enhance oxidative degradation of pollutants of poor biodegradability in industrial wastewaters is reviewed and evaluated, in order to assess the potential of microwave-induced oxidation as effective and viable remediation technique, alternative to conventional treatment procedures. Microwave radiation is actually emerging as an ...
The lack a of standard approach for presenting contaminant remediation kinetics using the UV/H2O2 advanced oxidation process (AOP) for water treatment hampers efforts to cross-interpret results and apply literature data for the prediction of treatment efficiencies in new experimental settings. Properly weighted UV fluence rates can be used to define parameters for assessing the UV/H2O2 AOP that...
The promotion of pollutant oxidation degradation efficiency by adding organic catalysts has obtained widespread attention in recent years. Studies have shown that substances promote the process traditional reactions accelerating redox cycle transition metals, chelating activating oxidants directly to generate reactive oxygen species such as hydroxyl and sulfate radical, or changing electron dis...
Application of ionizing radiation for recalcitrant organic decomposition has been well documented for such compounds as methyl tert-butyl ether (MTBE) [3], phosphonic acid, dimethy ester [17], 2,4-dichlorophenoxyacetic acid [6], aromatic hydrocarbons [12], benzene, toluene, m-xylene, o-xylene [16], THMs [5], bromate [21], phenol [14], methyl isobutyl ketone, toluene, xylene, tetrachloroethylene...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید