نتایج جستجو برای: heterogeneous catalytic ozonation
تعداد نتایج: 203565 فیلتر نتایج به سال:
Abstract Water pollution is still a serious problem in Indonesia. One of the pollutants that contribute to water dye. type dye often used textile industry methylene blue. There are several methods for treating waste, one which ozonation method. Ozonation chemical oxidation process remove color organic dyes. The catalytic can increase ability ozone sewage treatment. catalyst H 2 O decompose into...
ABSTRACT: In this project, a nano catalyst (TiO2) and ozone combined with each other and they were used for the removal of 4-nitrophenol (4NP) in industerial wastewater. The effect of some operational parameters such as initial pH (3-9), the concentration of pollutant (20-80 mg/L), and amount of TiO2 were investigated. In O3/TiO2 process, the anion radical formed before the production of hydro...
Background and purpose: Ethyl benzene is a toxic aromatic compound derived from petroleum hydrocarbons which usually enters the environment through leakage of oil industries and activities, wastes and effluents released by pharmaceutical industry, plastics, resins and petrochemicals. This study aimed to examine the feasibility of the use of MgO nanoparticles as catalysts in the ozonation proces...
abstract: in this project, a nano catalyst (tio2) and ozone combined with each other and they were used for the removal of 4-nitrophenol (4np) in industerial wastewater. the effect of some operational parameters such as initial ph (3-9), the concentration of pollutant (20-80 mg/l), and amount of tio2 were investigated. in o3/tio2 process, the anion radical formed before the production of hydro...
Background and purpose: Many conventional disinfection methods of effluents raise some health, efficiency and economic concerns. In order to increase the efficiency of disinfection of real effluent, in this study, the catalytic ozonation process was performed and economically compared with chlorination. Materials and methods: Magnetic activated carbon was used as acatalyst in a semi-continuo...
Background & Aims of the Study: 4-Nitrotoluene (4NT) is a toxic, resistant, and carcinogenic pollutant. The current study aimed to investigate the degradation and mineralization of 4NT regarded as one of the components of petrochemical wastewater using MnO2/Clinoptilolite (CP)/O3 process. The present study also examined the effect of several operational parameters. Materials and Methods: S...
This study investigates the application of novel natural and plasma-treated iron (III) oxide-hydroxide (limonite) catalysts on degradation/mineralization sulfasalazine (SSZ) antibiotic by ozone-based advanced oxidation processes (AOPs). The limonite nanostructures were prepared non-precursor, environmentally friendly, fast glow discharge plasma technology under oxygen (PTL/O2) oxygen/argon (PTL...
Environmental context Reverse osmosis (RO) is widely used for the treatment of hazardous wastewaters produced from coal chemical industry (CCI) to achieve zero liquid discharge however use RO inevitably results in accumulation refractory organic matter membrane concentrate, which challenging. This work provides useful insights into composition concentrates obtained a range real CCI wastewaters....
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