نتایج جستجو برای: fenton is 76

تعداد نتایج: 7264379  

Journal: :Water research 2008
Alejandro Moncayo-Lasso César Pulgarin Norberto Benítez

The generation of disinfection by-products during water treatment can be controlled by reducing the levels of precursor species prior to the chlorination step. The Natural Organic Matter (NOM) is the principal organic precursor and conventional removal of pollutants such as coagulation, flocculation and filtration do not guarantee the total NOM removal. In this study the degradation of NOM mode...

2016

Currently, the textile industry is one of the most important economic sectors in many countries. Besides, it is known as a major consumer of water and consequently one of the largest groups of industries causing intense water pollution. Chemicals, including surfactants, dyes, resins, dispersants agents, inorganic salts, etc., play a variety of functions during the textile processing and are pre...

2015
Zhehua Xue Ting Wang Bingdi Chen Tyler Malkoske Shuili Yu Yulin Tang

BiFeO₃ particles (BFO) were prepared by a simple hydrothermal method and characterized. BFO was pure, with a wide particle size distribution, and was visible light responsive. Tetracycline was chosen as the model pollutant in this study. The pH value was an important factor influencing the degradation efficiency. The total organic carbon (TOC) measurement was emphasized as a potential standard ...

Journal: :Journal of environmental quality 2002
Thomas F Hess Paul S Schrader

Munitions wastes such as TNT are widespread contaminants in soils and ground waters. We investigated a coupled abiotic-biotic treatment scheme for remediation of aqueous solutions of TNT. Mineralization of aqueous TNT (0.22 mM) was initially optimized with minimum reactant use (Fe3+ and H2O2) in light-assisted and dark, modified Fenton reactions at acidic and neutral pH. Complete TNT degradatio...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2012
Damjan Balabanič Daphne Hermosilla Noemí Merayo Aleksandra Krivograd Klemenčič Angeles Blanco

There is increasing concern about chemical pollutants that have the ability to mimic hormones, the so-called endocrine-disrupting compounds (EDCs). One of the main reasons for concern is the possible effect of EDCs on human health. EDCs may be released into the environment in different ways, and one of the most significant sources is industrial wastewater. The main objective of this research wa...

2014
Maria Ángeles Fernández de Dios Olaia Iglesias Marta Pazos Maria Ángeles Sanromán

The applicability of electro-Fenton technology to remediation of wastewater contaminated by several organic pollutants such as dyes and polycyclic aromatic hydrocarbons has been evaluated using iron-enriched zeolite as heterogeneous catalyst. The electro-Fenton technology is an advanced oxidation process that is efficient for the degradation of organic pollutants, but it suffers from the high o...

Journal: :Chemical Science 2023

The summarized new advances and proposed research directions in this perspective can provide in-depth insights for the application/mechanism investigation of DAC-mediated Fenton/Fenton-like reactions.

غلامپور, اکبر , فرخی, مهرداد , قصری, آذر , مصداقی نیا, علیرضا , نبی زاده, رامین , واعظی, فروغ ,

Background and Aim: 2,4-Dichlorophenol (DCP) is a compound  generated in a variety of industrial processes and also by chlorine disinfection of water polluted with phenolic compounds . Dumping of DCP into the environment and water resources is of great concern because of the compound's intense odor and toxicity. DCP is very soluble and resistant to biodegradability so it cannot be removed throu...

Journal: :International Journal of Environmental Science and Technology 2021

Several homogeneous photo-based advanced oxidation processes-namely photolysis, photo-oxidation, and photo-Fenton oxidation—were investigated for the elimination of ibuprofen in water. The effects several operating parameters, such as lamp type (low or medium pressure mercury, xenon-arc), concentration hydrogen peroxide (0.5 to 7 times stoichiometric amount required mineralization), Fenton reag...

Journal: :journal of health sciences and surveillance system 0
abooalfazl azhdarpoor assistant professor, department of environmental health, school of health, shiraz university of medical sciences, shiraz, iran; rabieh hoseini ma student of environmental health engineering, shiraz university of medical sciences, shiraz, iran; mansoureh dehghani associate professor, department of environmental health, school of health, shiraz university of medical sciences, shiraz, iran

background: high amount of heavy metals in sludge is one of the major obstacles to its use on farms. the present study aimed to investigate the possibility of leaching heavy metals from wastewater sludge by fenton method and determine the optimum level of parameters, such as iron, hydrogen peroxide, time, and ph for fenton reaction.   methods: the effects of various parameters, such as ph (2-9)...

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