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Effect of Solar Aeration Technology on Water Treatment of Polluted Urban River

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5 Author(s)
Zhen Wei ; Coll. of Hydrol. & Water Resources, Hohai Univ., Nanjing ; Yan Wang ; Yuanlong Zhu ; Lei Zhang
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After the application of aeration devices using solar energy in a polluted urban river for about one year, DO (dissolved oxygen) concentrations increased from 2.3 mg/L to 5.2 mg/L. Aeration accelerated the decomposition of pollutants and resulted in a removal rate of 52% COD (chemical oxygen demand), 54% NH3-N, 44% TN (total nitrogen) and 28% TP (total phosphorous) from the river. It was evident that solar aeration devices played a significant role on purifying pollutants especially organic matters and NH3-N in seriously polluted rivers with low velocity. Also, aeration had control algae bloom by decreasing nutrients amount and improving water exchange ability.

Published in:

Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on

Date of Conference:

16-18 May 2008