Laboratory Experiments to Assess the Effect of Chlorella on Turbidity Estimation

Turbidity is an important parameter in monitoring water quality, and thus attracts significant attention. Changes the various components constituent elements of directly affect turbidity measurements. The generally quantified by measuring absorbance or scattering characteristics substances suspended it. complex composition environmental bodies complicates determination factors influencing their turbidity. Controlled experiments that quantitatively analyze effect a single factor on measurement laboratory are means to improve accuracy assessment. Properties materials column may its measured include concentration algae, particle size, color soluble substances, etc. reported here used Chlorella as example investigate algal measurement. results follows. When low (100 NTU), average relative error between theoretical practical about 37.52%, which decreases 19.20% at 100–200 NTU 5.16% 200–400 NTU. characteristic spectral bands sensitive (680 nm) (240 were selected, analyzed. errors mixed liquids less than 100, 100–200, 65.07%, 34.18%, 3.95%, respectively. Therefore, significantly affects turbidity, more (<100 NTU). Combining analysis peak values bands, we can assess changes different components, through calibration, information regarding variation be obtained. this research could on-site concentrations water, also facilitate development new sensors.