Title :
Effect of Solar Aeration Technology on Water Treatment of Polluted Urban River
Author :
Wei, Zhen ; Yan Wang ; Zhu, Yuanlong ; Zhang, Lei ; Zhu, Liqin
Author_Institution :
Coll. of Hydrol. & Water Resources, Hohai Univ., Nanjing
Abstract :
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.
Keywords :
photovoltaic power systems; purification; river pollution; water treatment; algae bloom; chemical oxygen demand; dissolved oxygen concentrations; polluted urban river; solar aeration technology; total nitrogen; total phosphorous; water exchange ability; water treatment; Acceleration; Algae; Nitrogen; Oxygen; Rivers; Solar energy; Surface contamination; Urban pollution; Water pollution; Water resources;
Conference_Titel :
Bioinformatics and Biomedical Engineering, 2008. ICBBE 2008. The 2nd International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-1747-6
Electronic_ISBN :
978-1-4244-1748-3
DOI :
10.1109/ICBBE.2008.372
