This turnkey plant was shipped to recycler OK Plast to produce rPET flakes for applications in "food packaging". With a useful output of 1,200 kg/h of rPET flakes washed from bottles, which OK Plast collects through collection points installed in different corners of the city of Kinshasa, this production unit contributes to the circular economy through the Upcycling of rPET, which is reintegrated in an increasing percentage in the production of new preforms, bottles and new containers. The Bottle-to-Bottle rPET washing line includes several stages: automatic feeding, prewashing and de-labeling, followed by wet grinding, hot washing, flotation, and finally rinsing and drying stages. The line incorporates on two selection stages of color and material detectors for both bottles and flakes, as well as a Sorema-Scada 4.0 digital monitoring system for the entire line for efficient control both from local and from remote.