Abstract
Removal of Orange 7 from wastewater using natural adsorbent of Moringa<i> Oleifera</i> seeds were investigated. The effects of some operational parameters such as pH, the amount of biosorbent, initial dye concentration and temperature were examined. The present study revealed optimum conditions for the removal process which included dose of biosorbent (0.4 g), initial dye concentration (20 mg/L), initial pH (6) and temperature (25°C). The Langmuir and Freundich isotherms were applied for describing the biosorption equilibrium. The process was represented by the Freundich isotherm with a correlation coefficient of 0.94. The first-order, second-order and intra-particle diffusion kinetic models were implemented for demonstrating the biosorption mechanism and, as a result, intra-particle diffusion kinetics fitted best to the experimental data.
Highlights
The main objective is to decrease indoor temperature by ventilation
Air Flow Velocity Comfort According to Areans, [2], required air velocity depends on indoor air temperature
Air velocity is not required with indoor air temperature that is less than 23°C
Summary
The main objective is to decrease indoor temperature by ventilation. Thermal comfort in sever hot climate such as Aswan can be achieved by both natural and hybrid ventilation. International Journal of Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online) Volume 5, Issue 2, February (2014), pp. International Journal of Civil Engineering and Technology (IJCIET), ISSN 0976 – 6308 (Print), ISSN 0976 – 6316(Online) Volume 5, Issue 2, February (2014), pp. 71-80 © IAEME
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