نتایج جستجو برای: sole or single ozonation

تعداد نتایج: 4103736  

Background and purpose: Presence of natural organic substances in surface water supplies could be harmful and have adverse effects on drinking water treatment due to many practical and hygiene reasons. This study aimed at investigating the efficiency of catalytic ozonation process in removal and mineralization of humic substances in water resources in north of Iran. Materials and methods: Wate...

2002
I. M. Verstraeten E. M. Thurman M. E. Lindsey E. C. Lee R. D. Smith

The changes in triazine and acetamide concentrations in water during natural and artificial treatment by bank filtration, ozonation, filtration, and chlorination were measured at the well field and drinking water treatment plant of Lincoln, Nebraska, USA. The city’s groundwater supply is affected by induced infiltration and transport of triazines and acetamide herbicides from the Platte River i...

2013
J. WEISS E. BAGINSKA C. LUTTERBECK R. BOLEK V. BOIREAU B. ROIG M. LAMOREE

After human consumption, pharmaceutically active substances can be excreted and enter the effluent treatment facilities. Often degradation in sewage and water treatment and the environment is incomplete, resulting in the formation of transformation products. Within the Pharmas project (EU grant agreement no. 265346) three anticancer drugs were evaluated for the formation of stable transformatio...

Journal: :Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering 2014
Azahara Espejo Almudena Aguinaco Ana M Amat Fernando J Beltrán

Removal of nine pharmaceutical compounds--acetaminophen (AAF), antipyrine (ANT), caffeine (CAF), carbamazepine (CRB), diclofenac (DCF), hydrochlorothiazide (HCT), ketorolac (KET), metoprolol (MET) and sulfamethoxazole (SMX)-spiked in a primary sedimentation effluent of a municipal wastewater has been studied with sequential aerobic biological and ozone advanced oxidation systems. Combinations o...

Journal: :Environmental toxicology and chemistry 2005
Kyung-Hee Shin Haeryong Jung Peichun Chang Heechul Choi Kyoung-Woong Kim

An ecotoxicity test with Eisenia fetida was performed to monitor the removal of diesel and toxicity variation during the ozonation process. The three-dimensional (3-D) cell test was introduced for the monitoring of the ozonation process, and the removal rate based on total petroleum hydrocarbons (TPHs) mass was about 95% near the ozone inlet ports. This high removal rate might be caused by the ...

2014
A. I. El-Desouky Khayria Naguib

Ozonation of wheat grain is a quick and easy process that could be realized during the storage. The ozone is in direct contact with the grain and modifies immediately the properties of the wheat. Stability and resistance of dough were increased with ozonation at 40 ppm in comparative with control sample. The results showed a gradual increase in specific volume of balady bread according to the t...

2014
Yousef Dadban Shahamat Mahdi Farzadkia Simin Nasseri Amir Hossein Mahvi Mitra Gholami Ali Esrafili

In this study, a new strategy in catalytic ozonation removal method for degradation of phenol from industrial wastewater was investigated. Magnetic carbon nano composite as a novel catalyst was synthesized, characterized and then used in the catalytic ozonation process (COP) and compared with the single ozonation process (SOP). The influential parameters were all investigated. The results showe...

ژورنال: سلامت و محیط زیست 2011
تقی پور, عباس, دهقانزاده, رضا, محوی, امیرحسین, نبی زاده, رامین, واعظی, فروغ,

Background and Objectives: Fresh leachate has a low pH and high amounts of BOD and COD which are mainly constituents with low weight molecular such as volatile fatty acids ( acetic and propionic acids) .Management and treatment of leachate is an important subject in sanitary landfill operation and performance.Th objective of this study is determining the efficiency of the integrated coagulation...

Journal: :Chemical Engineering Journal 2022

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...

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