Modeling hydroxyl radical control process in hydrodynamic cavitation reactors
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2015, Vol 6, Issue 4
Abstract
Cavitations phenomenon is resulted from elevated temperature and pressure and production of free radicals. This technology can be employed to disinfect drinking water and waste water. What is important in cavitations reactors is the production of hydroxyl radicals, which plays a significant role in removing coliforms. So, it was attempted to control radical production through controlling the input pressure. It was examined by placing a PID controller. The presented control algorithm is carried out based on trial and error. Flow diagram of hydroxyl radical control model was also designed using pressure. The relationship between design in term of cavitational intensity (according to collapsing pressure and temperature) and cavitational efficiency (according to radical) will be based on operational parameters regarding the hydrodynamic cavitations in order to perceive the design information concerning cavitational intensity and radical efficiency.
Authors and Affiliations
Zahra Raeyati, Mahmood Torabi Angaji
Keywords
Related Articles
- EP ID EP38378
- DOI -
- Views 151
- Downloads 0
Effect of pH changes on the growth of water hyacinth (Eichhornia crassipes (Mart.) Solms.) in acid mine drainage
Acid mine drainage (AMD) is waste water formed through a series of chemical reactions and biological activity. AMD has a pH of 3.0 and limited nutrients content. Therefore, before being released into the environment, it...
Population assessment of Himalayan lynx (Lynx lynx isabellinus) and conflict with humans in the hindu kush mountain range of District Chitral, Pakistan
This paper is the first-ever attempt to outline the interaction of Himalayan lynx (Lynx lynx isabellinus) with humans and its abundance measured through motion triggered camera traps in Hindu Kush Mountain Range of Dis...
Characteristics of mineralogy, petrography and textures of rocks in the mata mountain area, South of Jiroft
South Jiroft rocks in the Mata mountain area of mineralogy and chemical composition divided to three groups: basalt, gabbro and diabase. The age of these rocks is attributed to the lower Jurassic. The study area is loca...
Drought changes trend in khuzestan province, Iran
Iran is a dry country suffering from water crisis. With respect to the role of surface waters in the region ecosystem and the effect of drought on quantity and quality of waters, the present study was carried out to inv...
Effect of protected area category on mammal abundance in Western Ghana
A comparative study of the species composition and encounter rates of mammals (>400g) in two different protected area categories was conducted in the Bia-Goaso Forest Block in western Ghana from April 2008 to February...