نتایج جستجو برای: aops

تعداد نتایج: 407  

2014
Peng Liu Chaolin Li Zhuanjun Zhao Gang Lu Haibo Cui Wenfang Zhang

Hazardous organic wastes from industrial, military, and commercial activities represent one of the greatest challenges to human beings. Advanced oxidation processes (AOPs) are alternatives to the degradation of those organic wastes. However, the knowledge about the exact mechanisms of AOPs is still incomplete. Here we report a phenomenon in the AOPs: induced effects, which is a common property ...

Journal: :Software Engineering Journal 1993
Stephen Shum Curtis R. Cook

The practice of literate programming is not widespread because existing literate programming systems have some undesirable characteristics such as programming language and text processor dependence and lack of flexible tools for viewing and manipulation of the source file. This paper describes the literate programming system AOPS (Abstraction Oriented Programming System) which addresses both of...

Journal: :Journal of environmental management 2014
Farhana Tisa Abdul Aziz Abdul Raman Wan Mohd Ashri Wan Daud

Treatment of industrial waste water (e.g. textile waste water, phenol waste water, pharmaceutical etc) faces limitation in conventional treatment procedures. Advanced oxidation processes (AOPs) do not suffer from the limits of conventional treatment processes and consequently degrade toxic pollutants more efficiently. Complexity is faced in eradicating the restrictions of AOPs such as sludge fo...

2008
A. Muhammad A. Shafeeq M. A. Butt Z. H. Rizvi M. A. Chughtai

In this paper, a comparative study of the treatment of raw and biotreated (upflow anaerobic sludge blanket, UASB) textile dye bath effluent using advanced oxidation processes (AOPs) is presented. The AOPs applied on raw and biotreated textile dye bath effluent, after characterization in terms of COD, colour, BOD and pH, were ozone, UV, UV/H2O2 and photo-Fenton. The decolorization of raw dye bat...

2006
Jeffrey Zoeckler Andrew Stocking Amparo Flores Michael Kavanaugh

Organic compounds, including MTBE, have been treated in drinking water using AOPs at several sites across the United States over the past five years. The largest system (3,000 gpm) is a medium pressure H 2 O 2 /MP-UV system installed in Salt Lake City, Utah to remove up to 10 µg/L PCE from drinking water (Crawford, 1999). Other systems are installed in Canada for the removal of N-nitroso dimeth...

Journal: :Chemosphere 2004
Jerry J Wu Chih-Chao Wu Hong-Wen Ma Chia-Chi Chang

In this study, laboratory experiments are conducted to compare the efficacy using several ozone-based advanced oxidation processes (AOPs), such as O3, O3/H2O2, and O3/UV, to treat landfill leachate. Raw leachate was initially coagulated by ferric chloride (FeCl3) at the experimental-determined optimal dosage of 900 mgl(-1), and the ozone-based AOPs were subsequently applied. Results indicate th...

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2015
Edward J Perkins Philipp Antczak Lyle Burgoon Francesco Falciani Natàlia Garcia-Reyero Steve Gutsell Geoff Hodges Aude Kienzler Dries Knapen Mary McBride Catherine Willett

Adverse outcome pathways (AOPs) offer a pathway-based toxicological framework to support hazard assessment and regulatory decision-making. However, little has been discussed about the scientific confidence needed, or how complete a pathway should be, before use in a specific regulatory application. Here we review four case studies to explore the degree of scientific confidence and extent of com...

2005
P. Gehringer W. Szinovatz H. Eschweiler R. Haberl Peter Gehringer Walter Szinovatz Helmut Eschweiler Raimund Haberl P. GEHRINGER W. SZINOVATZ H. ESCHWEILER R. HABERL

The discoloration of a biologically pretreated waste water stream from a molasses processing by ozonation and two advanced oxidation processes (O3/H2O2 and 03/7-irradiation, respectively) was studied. Colour removal occurred with all three processes with almost the same efficiency. The main difference of the methods applied was reflected by the BOD increase during the discoloration period. By o...

2016
Murtaza Sayed Ali Shah Asad Muhammad Khan Ali Khan Abdur Rahman Khan Mahmood Khan

This study investigates the decomposition of clofibric acid (CLF) by different advanced oxidation processes (AOPs), such as UV (254nm), VUV (185 nm), UV / TiO2 and VUV / TiO2. The removal efficiencies of applied AOPs were compared in the presence and absence of dissolved oxygen. The removal efficiency of the studied AOPs towards degradation of CLF were found in the order of VUV / TiO2 + O2 > VU...

Journal: :Journal of applied toxicology : JAT 2015
Natalie Burden Fiona Sewell Melvin E Andersen Alan Boobis J Kevin Chipman Mark T D Cronin Thomas H Hutchinson Ian Kimber Maurice Whelan

Adverse Outcome Pathways (AOPs) provide an opportunity to develop new and more accurate safety assessment processes for drugs and other chemicals, and may ultimately play an important role in regulatory decision making. Not only can the development and application of AOPs pave the way for the development of improved evidence-based approaches for hazard and risk assessment, there is also the pro...

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