pH automation in sugar industries

In general potential of hydrogen ions (pH) neutralization is an essential process in all food processing industries. pH values must be maintained within the specific range so that the products produced stays within the safety limit. In sugar production, pH neutralization is most important to enhance the edibility of sugar. So, the pH value should be maintained within a range. The process has the characteristics of strong non-linearity, multi-input and time-varying property. Therefore, there is no particular acceptable solution to control the varying pH value. We have focused in tackling this problem using mathematical approach, to control the flow of MOL and surface fitting methodology was opted in this paper. The simulation results indicates that this method has the good control effect and using this techniques a promising results towards milk of lime (MOL) flow to controlling the pH was concluded. This could be further developed using hardware based control and can be implemented in sugar industries to control the pH value automatically.