Sabry Zaghloul Wahba

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• Ph.D.
• Senior Researcher at National Research Centre

Abstract This paper studied the enhanced effects of ultrasonic as non-chemical oxidant on traditional coagulation of raw water with alum for microorganisms’ removal. The treatment processes were studied using ultrasonic frequencies; 20, 40, and 60 KHz at different time intervals namely 15, 30, 45, and 60 minutes. The study revealed that; the remova...

This paper presents Meta-learning techniques for predicting algae growth in River Nile through the selection of inuence environmental variables such as water temperature, ph, silica, and the nitrogen group. Feature selection has been performed using several algorithms to identify the variables relevant to the growth. Then, genetic classier and CFS...

Biodiesel is one of those renewable fuel sources developed to fuel transportation sector to replace conventional petroleum based fuels. In the present work the key concentration is directed towards highlighting engineering and biological issues to resolve the production of biofuels from microalgae to become an economic reality. This study discusses...

River Nile and its branches are the main source of drinking water in Egypt. The present study was carried out to find out the changes of physicochemical parameters in two stations during different seasons and the efficiency of conventional treatment and direct filtration on the production of high quality water from the point view of physicochemical...

Changes of phytoplankton density along the river Nile have been monitored at Cairo district between July 2007 and June 2008. River Nile water contains algal species belonging to three major phytoplankton groups, namely; Chlorophyta (green algae), Cyanophyta (blue-green algae) and Bacillariophyta (diatoms). A total of 90 taxa have identified during...

The river Nile is the main source of potable drinking water supply in Egypt. River Nile water showed various phytoplankton structures belonging to three main groups, namely, Chlorophyceae (Green Algae), Cyanophyceae (Blue-Green Algae) and Bacillariophyceae (Diatoms). The green algae and diatoms were present throughout the entire period of examinati...

A massive mixed algal growth may have many adverse effects on the water quality and causes acute problems, especially in different treatment steps for the production of drinking water. The effectiveness of drinking water treatment options for eliminating the nuisance created by River Nile water algae was the main objective of this study. The algal...

The river Nile and Ismailia Canal are the main sources of potable drinking water supply in Egypt Under certain environmental circumstances, algae multiply to produce "blooms" and may also synthesize products (biotoxins) that can be harmful to marine and freshwater organisms as well as people. Therefore, the main objectives of this study were: To st...