Abstract: The influence of different concentrations of effective chlorine on population growths ofNitzschia closterium, Platymonas sp. , Dicrateria sp. and Isochrysis sp. was determined in roomtemperature. And the influence of concentration of effective chlorine by 10 mg/L on populationgrowth of Platymonas sp. was determined at the time of different inoculation. The results show:That effective chlorine has restrained the population growth of unicellular algae if the concentra-tion of effective chlorine was higher than 1 mg/L. With the increase in concentration of effec-tive chlorine, the effect of restraining is more and more remarkable. The growing rate of unicel-lular algae changed from positive number to negative number. The tolerance of common dietaryalgae to effective chlorine was concluded by the comparison with the growing rate of the differ-ent algae, that is Dicrateria sp. , Isochrysis sp. > Platymonas sp. > Nitzschia closterium. Thetoxicity of effective chlorine to unicellular algae is connected not only with the initial concentra-tion of effective chlorine, but also with the attenuation of effective chlorine. Attenuation of ef-fective chlorine increases with reduction in initial concentration of effective chlorine, high tem-perature , increase in COD and light and decrease in pH. If the concentration of effective chlo-rine is identical, the restraining of effective chlorine to growth of unicellular algae is shorterwith the latter of inoculation.
刘青, 王玉善, 赵文. 有效氯对4种单胞藻种群增长的影响[J]. 大连海洋大学学报, 2002, 17(2): 120-125.
LIU Qing, WANG Yu-shan, ZHA Wen. The influence of effective chlorine on growth of 4 species of unicellular algae. Journal of Dalian Ocean University, 2002, 17(2): 120-125.
2002, Vol. 17 
