Main conditions of wastewater aeration unit design parameters selection
2006
Sniders, A.(Latvia Univ. of Agriculture, Jelgava (Latvia))E-mail:[email protected] | Laizans, A.(Latvia Univ. of Agriculture, Jelgava (Latvia))E-mail:[email protected]
The research paper discusses importance of wastewater aeration as one of the most important parts of wastewater biological treatment from energy point of view because of high energy consumption and non-stop operations. Thus choice of constructive parameters of the wastewater aeration system is not only a technical, but also an economic problem. Research on the impact of the design parameters of aeration system on the efficiency of oxygen dissolving was done, and the increase of the aeration tank depth as a solution to decrease air blower capacity and electrical power consumption was used observed and evaluated. The research showed that through increase of aeration tank depth from 4 meters to 6 meters results in the decrease of air blower capacity from 2466 m**3/h, and summary decrease of necessary electrical power of electrical motor from 39 kW to 37 kW. This results in direct savings from electrical power consumption and additional savings from reduced number of diffusers are per m**3 of aeration area.
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