Adel Bahnasawy

• Ph.D in food engineering
• Head of Department at Benha University

This study aimed to carry out a techno-economical study on the integrated aquaponic system for tilapia fish and lettuce plants. Fish and plant production was evaluated technically by determining the yield and economically by estimating the total costs, revenue, payback period, benefit/cost ratio, and internal return rates. The results indicated tha...

The main aim of this work is to study the effect of different nutrient supply systems and their effect on the performance of the Nile Tilapia (Oreochromis niloticus) and Lettuce (Lactuca sativa var. crispa) plant integration system. To achieve that, five treatments having different culture systems (T1: Aquaculture (control), T2: Hydroponics (standa...

The main aim of this study is to determine the physical and chemical properties of biochar synthesized from different materials (straw rice, sawdust, sugar cane, and tree leaves) at different pyrolysis temperatures (400, 600, and 800 °C). The physical and chemical properties such as moisture content, water holding capacity, bulk density, and porosi...

Aquaponics is the combined culture of fish and plants in recirculating aquaculture systems, considered to be an innovative, eco-friendly and sustainable technology. The effect of the hydraulic loading rate (HLR) on the performance of fish and plants in the aquapoinc system was the main aim of this study. Four hydraulic loading rates were applied, 1...

The bio-composite films based on Hydroxypropyl methylcellulose (HPMC) reinforced with silver nanoparticles (AgNPs) and Titanium oxide nanoparticles (TiO2-NPs) were developed. Some physical and mechanical properties: Tensile strength (TS), elongation (E), Young’s elastic modulus (EM), water vapor permeability (WVP) and transparency were determined....

The main aim of this study is to determine the physical and chemical properties of biochar made from different raw materials (straw rice, sawdust, sugar cane, and tree leaves) at different pyrolysis temperatures (400, 600, and 800°C). Moisture content, water holding capacity, bulk density, and porosity were the measured physical properties; pH, Ele...

The main aim of this research is to develop a mathematical model to predict the dissolved oxygen in recirculating aquaculture system. The oxygen consumption of the model through the fish respiration and nitrification and the oxygen addition of the model through oxygen generator and water pumping. The effect of different water temperatures (24, 26,...

An automatic feeder for fish feeding was manufactured and evaluated successively. Feed pellet size, air flow rate and feeder screw speed were the most important factors affecting the performance and efficiency of the automatic feeder. It was tested at 3 sizes of pellets (1, 2 and 3 mm), 3 air flow rates (10, 15 and 20 m ³ min ⁻¹ ) and 5 screw speed...

The main aim of the present study is to develop, fabricate and evaluate a rotating grader for grading cereal corps. The effect of different orifice sizes (<7.5, 7.5 to 9.5 and 9.5 to 11.0 mm), inclination angles (0, 3, 5 and 7ᵒ) and rotational speeds of drum (25, 30, 35, 40, 45 and 50 rpm) were studied. The grader productivity, efficiency, specific...

The main aim of this study is to investigate the possibility of drying chamomile plants under different conditions. The obtained results indicated that the accumulated weight loss of chamomile flowers was (86.27, 84.67, 82.70, 85.04 and 86.53)% for the sun-drying system, shadow-drying system, room-drying system, solar-drying system, and oven-drying...

The main aim of this work was to study the effect of storage system (cold, ventilated and traditional) and package type on the quality of garlic during storage. The results indicated that, the total accumulated weight loss increases with increasing the storage period. Storage system had a great effect on the losses, where, the traditional storage s...

The main aim of this study is to investigate the possibility of drying the basil plants under five different drying systems. The obtained results indicated that the accumulated weight losses of basil plants were 77.43, 74.00, 70.48, 74.92 and 77.99 %, for sun-drying system, shadow-drying system, room-drying system, solar-drying system and oven-dryi...