[Removal of coliphages by wastewater treatment processes].
The concentrations of somatic coliphages (SC) and F-specific RNA bacteriophages in effluent of three wastewater treatment plants in Beijing city were detected. Somatic coliphages and F-RNA bacteriophages in source wastewater were 6.25 x 10(3) - 1.34 x 10(4) PFU x mL(-1) and 2.4 x 10 - 2.4 x 10(3) PFU x mL(-1) respectively, and the corresponding average removal rates were 72.45% - 99.89 % and 57.84% - 93.06% by the wastewater processes, and which were lower than that of faecal coliforms. Biological aerated stage appeared to be the most efficient step in reducing the numbers of phages in wastewater, but not obviously in sand filter. The result of predicted concentrations of enteroviruses according to concentrations of F-RNA bacteriophages in water show that there are 0.65 - 15.8 PFU x L(-1) of the enteroviruses in final effluent.
Li
Mei
M
State Key Joint Laboratory of Environmental Simulation and Pollution Control, Department of Environmental Science and Engineering, Tsinghua University, Beijing 100084, China.
Hu
Hong-Ying
HY
Zhang
Xue
X
Shen
Huan
H
D003090:Coliphages / Q000302:isolation & purification*; D015169:Colony Count, Microbial; D004770:Enterovirus / Q000302:isolation & purification*; D012317:RNA Phages / Q000302:isolation & purification; D014865:Waste Disposal, Fluid / Q000379:methods*; D014871:Water Microbiology