[Research of aeration with bio-film technology to treat urban landscape water].
Research of the aeration with bio-film technology was carried out to treat scenic water of a sanatorium in Beijing. The aim of the research was improving the water habitat by increasing the transparency and reducing the concentration of N and P. The equipments were set in a 5,000 m2 water area, which combined the plug flow jet aerator with the elastic biological filler. The research indicated that the transparency increased from 25 cm to 120 cm by the technology. The removal efficiencies of NH4(+)-N, NO3(-)-N and TP were 86.6% , 90% and 73.3%, but there was only 22.4% for TN. The concentration of DO increased from 4.3 mg/L to 7 mg/L. In a word, the aeration with bio-film technology was an effective measure to improve the water habitat by increasing the transparency.
Song
Ying-Wei
YW
Department of Environmental Science, East China Normal University, Shanghai 200062, China. songyw1970@sohu.com
Nie
Zhi-Dan
ZD
Nian
Yue-Gang
YG
Huang
Min-Sheng
MS
Huang
Jian-Jun
JJ
Yan
Hai-Hong
HH
Zhang
Yang
Y
D001673:Biodegradation, Environmental; D018441:Biofilms; D002681:China; D002947:Cities; D009584:Nitrogen / Q000378:metabolism*; D010084:Oxidation-Reduction; D010758:Phosphorus / Q000378:metabolism*; D015203:Reproducibility of Results; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D018508:Water Purification / Q000295:instrumentation / Q000379:methods
D014874:Water Pollutants, Chemical; D010758:Phosphorus; D009584:Nitrogen