Aditya Kusnoadi works as a supervisor in the treatment of waste water. He explains to Sri Dean the process of waste-water treatment and how the separation of waste-water types is just as crucial as separating other types of rubbish that will be recycled.
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The fat and scraps found in waste-water used in commercial kitchens is a unique waster-water type known as grease-trap waste. Source: Image by Madame Fromage1/Creative Commons.