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| 1 | Impact of Fenton and ozone on oxidation of wastewater containing nitroaromatic compounds显示文摘Fenton and ozone treatment was investigated at laboratory scale for the degradation of aqueous solutions of nitrobenzene (NB). Effects of reactants concentration (O3, H2O2, and Fe(II)), temperature, and pH on NB degradation were monitored. Reaction kinetic of these processes was also assessed. A rapid reaction took place for Fenton process at higher initial concentration of H2O2, higher temperatures, and more acidic conditions (pH 3). Similarly, ozonation reaction exhibited rapid rates for higher ozone dose, higher temperatures, and more basic conditions (pH 11). Complete NB degradation in 65 min was achieved using Fenton process. The conditions of complete elimination of 100 mg/L of initial NB concentration, were 250 mg/L of H2O2 concentration, pH 3, and 10 mg/L of Fe(II) concentration. Under these conditions, 55% organic carbon elimination was achieved. Total organic carbon mineralization was attained in 240 min reaction time by Fenton process with 900 mg/L of H2O2 concentration, and 30 mg/L of Fe(II) concentration. Fenton reaction showed a pseudo-first order kinetic; the reaction rate constant was ranged from 0.0226 to 0.0658 min-1. Complete NB degradation was also achieved for an ozone dose of the order of 2.5 g/L. The ozonation was studied at different ozone doses, different initial pH (7–11) and at different temperatures (15–35°C ). NB ozonation kinetic was represented by a bi-molecular kinetic model which was reduced to pseudo-first order kinetic. The pseudo-first order reaction rate constant was determined to increase at 20°C from 0.004 to 0.020 min-1 as the used ozone increased from 0.4 to 1.9 g/L. | Fares Al Momani Mo’ayyad Shawaqfah Ahmad Shawaqfeh Mohammad Al-Shannag | 2008 | Journal of Environmental Sciences2008，20，6： | 13 |
| 2 | Surgical compli- cations after endoscopic transsphenoidal pituitary surgery显示文摘 | Charalampaki P Ayyad A Kockro RA | 2009 | Clin Neurosci2009，16，6： | 1 |
| 3 | Expression of matrix metalloproteinase-2 in preinvasive and invasive carcinoma of the uterine cervix显示文摘 | Nasr M Ayyad SB EI-Lamie IK | 2005 | Eur J Gynaecol Oncol2005，26，2： | 1 |
| 4 | Expression of matrix metallopro-teinase- 2 in preinvasive and invasive carcinoma of the uterine cervix显示文摘 | Nasr M Ayyad SB El- Lamie IK | 2005 | Eur J Gynaecol Oncol2005，26，2： | 1 |
| 5 | Surgical complications after endoscopic transsphenoidal pituitary surgery显示文摘 | Charalampaki P Ayyad A Kockro RA | 2009 | J Clin Neurosci2009，16，6： | 1 |
| 6 | Expression of matrix metalloproteinase-2 in preinvasive and invasive carcinoma of the uterine cervix显示文摘 | Nasr M Ayyad SB E1 - Lamie IK | 2005 | Eur J Gynaecol Onco12005，26，2： | 1 |
| 7 | Surgical complications after endoscopic transphenoidal pituitary surgery显示文摘 | Charalampaki P Ayyad A Kockro RA | 2009 | JClinNeurosci2009，16，6： | 1 |
| 8 | A new cytotoxic stigmastane steroid from Pistia stra-tiotes显示文摘 | Ayyad S N | 2001 | Pharmazie2001，56，3： | 1 |
| 9 | Analysis of a vegetation-microenvironmental complex on prairie slopes in saskatchewan显示文摘 | AYYAD M A G DIX R L | 1964 | Ecological Monographs1964，34，： | 1 |
| 10 | Long-term efficacy of dietary treatment of obesity:a systematic review of studies published between 1931 and 1999显示文摘 | Ayyad C Andersen T | | 0，，： | 1 |
| 11 | Environmental gradients and species distribution in a transect at Omayed (Egypt)显示文摘 | Abdel-Razik M Abdel-Aziz M Ayyad M | 1984 | Journal of Arid Environment1984，7，： | 1 |
| 12 | Foaming behavior and cellular structure of LDPE/hectorite nanocomposites 显示文摘 | J I Velasco M Antunes O Ayyad | 2007 | Polymer2007，48，： | 1 |
| 13 | Foaming be- haviour and eellular structure of LDPE/heetorite nanoeomposites 显示文摘 | VELASCO J I ANTUNES M AYYAD O | 2007 | Polymer2007，48，7： | 1 |
| 14 | Environmental gradients and species distribution in a transect at Omayed(Egypt)显示文摘 | Abdel-Razik M Bdel-Aziz M Ayyad M | 1984 | Journal of Arid Environment1984，7，： | 1 |
| 15 | t;haractenza- tion of pectin,flash-extracted from orange albedo by microwave heating under pressure 显示文摘 | FISHMAN M L HOAGLAND P AYYAD K et at | 2000 | Carbohydrate Research2000，323，14： | 1 |
| 16 | 显示文摘 | Munoz-Rojas D Oro-Sole J Ayyad O | 2008 | Small2008，4，9： | 1 |
| 17 | Expression of matrix metalloproteinase-2 in preinvasive and invasive carcinoma of the uterine cervix显示文摘 | Nasr M Ayyad SB El-Lamie IK | 2005 | Eur J Gynaecol Oncol2005，26，2： | 1 |
| 18 | Environmental gradients and species distribution in a transect at Omayed(Egypt)显示文摘 | ABDEL-RAZIK M ABDEL-AZI Z M AYYAD M | 1984 | Journal of Arid Environment1984，7，： | 1 |
| 19 | Surgical complications after endoscopic transsphenoidal pituitary surgery显示文摘 | Charalampaki P Ayyad A Kockro RA | 2009 | J Clin Neurosci2009，16，6： | 1 |
| 20 | In vitro and in vivo study of cucurbitacins-type triterpene glucoside from Citrullus colocynthis growing in Saudi Arabia against hepatocellular carcinoma显示文摘 | Ayyad SE Abdel-Lateff A Alarif WM | 2012 | Environ Toxicol Pharmacol2012，33，2： | 1 |
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