| 1. | Ecological studies on some planktonic organisms at Mahallet Ziad Wastewater treatment plant in El Gharbia Province, Egypt | |
| Pages 1-10 | ||
| Mansour Ibrahim Galal; ElSayed Khalaaf; Mohamed N. Authman; Awaad El-Sebaae | ||
| 2. | Flash Flood Modeling on Wadi Reem in the western region, Kingdom of Saudi Arabia | |
| Pages 11-24 | ||
| ’Mahmoud Abd El Shafy; Alaa Mostafa; El Montaser Mahmoud Sleem | ||
| 3. | Improvement and characterization of alum sludge by nano-iron oxide and rice husk for removal of methylene blue dye from aqueous solution | |
| Pages 25-59 | ||
| Tamer El-Tokhy; Mohamed Ahmed; Maie ElGamma; Mahmoud Ibrahim | ||
| 4. | Reduction of p-nitrophenol to p-aminophenol using an efficient, cheap and simple technique to prepare spinel ferrites: A comparative study | |
| Pages 73-81 | ||
| Mohammed Gad; Mohamed A. Ahmed; Fouad El-Sherbini E | ||
