BIODISK Little John Wastewater Treatment Plant is a completely portable system designed to fit inside a standard ISO sea container. The wastewater treatment plant has built into it: Ultra Violet disinfection, flow meter, sampling tap and a control panel, all of which are all installed inside a control room. Little John provides secondary effluent quality and can treat a hydraulic load of 45 m3/d. The control room is shipped inside the works and is removed and placed at the end of the tank on site. Electrical wiring is completed and installed in our shop and can be quickly connected at the site. These units are designed for an outdoor cold climate with an operating temperature down to- 40 Celsius.