Abstract
Automatic oil-water separating equipment based on nanostructured hierarchical iron oxide grown on steel mesh by thermal oxidation method is presented. The iron oxide was rather amorphous but is highly hydrophobic due to the presence of the hierarchical nanostructure. The semi-permeable property emerged from this nanostructure made the oxidized steel mesh suitable as a membrane to separate oil from water. The membrane was assembled in an oil-water separator equipment, that equipped with Internet of Things (IoT) devices, that consisting of sensors, a microcontroller, and actuators. They are connected to the Blynk IoT Platform, via a Wi-Fi connection. The built equipment and IoT implementation allow users to perform the oil-water separation process automatically and the real-time process can be monitored, even from a smart phone application. The oil-water separator is shown to have an excellent capability to separate water from oil, with efficiency reaching >96% and can be repeatedly use.
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