Abstract
Continuous water quality monitoring of effluent is important for proper control of animal wastewater treatment facility. To develop a simple and reliable monitoring method, a fundamental study was carried out on the relationship between water quality of the effluent and its color indicated by the parameter L*a*b*. Effluent of a swine wastewater treatment plant was collected every week for a year, and its water quality (suspended solids (SS), biological oxygen demand E(BOD), ammonium), and L*, a* and b* were determined. A glass cell type color analyzer was used for the L*a*b* determination. Multiple regression analysis between water quality as a predictor variable and L*, a*and b* as criterion variables suggest that concentrations of SS, BOD and ammonium are predictable by linear equations.
