Rehab M. Elhefny

Evaluating the Use of Tube Settlers and Lamella Plates in Increasing the Efficiency of Sedimentation Tanks

Hanan A. Fouad, Rehab M. Elhefny & Ahmed I. Marei · Journal of Applied Life Sciences International · 2016

Aims: The main purpose of this study is to evaluate the use of tube settlers and Lamella plates in increasing the efficiency of sedimentation tanks in removing the turbidity, bacteria, and algae from water in water treatment plants. Study Design: Evaluating the use of tube settle...

Open access Research Article 10.9734/JALSI/2016/28579

Improvement of Final Settling Tanks Performance by Using Chemical Additions

Mohamed A. E. Halawa, Hanan A. Fouad, Rehab M. Elhefny & A. F. Wail · Journal of Engineering Research and Reports · 2019

Biological treatment in wastewater treatment plants WWTPs consists of two main tanks, aeration tank and final settling tank. Aeration process using in return activated sludge system is very costly and it is required to operate WWTPs with low dissolved oxygen (DO) concentration in...

Open access Research Article 10.9734/jerr/2019/v7i416978