论文信息 - Reducing the Space and Power Consumption for Aerospace Water Treatment by Improving Aeration Process Using Innovative mixing Power Reclamation Device

Reducing the Space and Power Consumption for Aerospace Water Treatment by Improving Aeration Process Using Innovative mixing Power Reclamation Device

Aeration is an essential stage in wastewater treatment plants. The main purpose of aeration is to treat the organic contaminants in wastewater by activating aerobic bacteria. Obviously, aerobic bacteria need oxygen, which is provided by the aeration system, to proliferate and digest organic materials. However, aeration is an energy demanding process, and it is the most expensive stage in wastewater treatment [1]. Therefore, any improvement in its efficiency can save a considerable amount of power. At the same time, space saving is very important to some aerospace industries, and higher oxygen transfer efficiency (OTE) can reduce the required space for water treatment units. OTE can be improved by increased mixing within the tank [4, 5, 6]. A new mixing system will be introduced in this paper to improve OTE, and the experimental results will be presented.

Ryoichi S. Amano | Ammar Alkhalidi | Hasan Albabaa

[1] Miguel A. Galán,et al. Oxygen transfer from growing bubbles : Effect of the physical properties of the liquid , 2007 .

[2] Arnaud Cockx,et al. Local measurement of oxygen transfer around a single bubble by planar laser-induced fluorescence , 2007 .

[3] R. B. Thorpe,et al. Bubble size and mass transfer characteristics of sparged downwards two-phase flow , 2005 .

[4] R. Higbie,et al. The Rate of Absorption of a Pure Gas into a Still Liquid during Short Periods of Exposure , 1935 .

[5] Zeinab Salehi,et al. Oxygen transfer during aerobic biodegradation of pollutants in a dense activated sludge slurry bubble column: Actual volumetric oxygen transfer coefficient and oxygen uptake rate in p-nitrophenol degradation by acclimated waste activated sludge , 2011 .