in this study, the conditions for producing invert syrup were optimized and factors such as type of acid citric, hydrochloridric and tartaric (each at two levels), reaction time (1 and 1.5 h) and temperature (70 and 80°c) were studied. the properties of invert syrups which produced by different methods were compared with each other and a standard and optimized method, for inversion reaction, wa...

according to environmental protection organization of iran, maximum permissible concentration of residual phosphorus in treated municipal wastewater is 1 mg /l-p. the total average phosphorus concentration in raw municipal wastewater is about 8 mg / l; about 70 percent of the incoming phosphorus normally is discharged with secondary treatment plant effluents. in this research, the role of addin...