<![CDATA[Electricity is a form of energy that has now become a part of life for all mankind. Almost everything that humans use requires electricity to function, where the greater the energy required, the more electrical energy that needs to be generated. The majority of generators used are steam power plants that require coal. Where the coal used requires a mining process which will produce waste, one of which is used oil from coal transport equipment which is undergoing maintenance. This used oil will later mix with water when the workshop is cleaned. To ensure the cleanliness and safety of waste water that will be channeled back into nature, preventive measures need to be taken in the form of using an oil skimmer. Oil skimmers are still rarely used in Indonesia, and still require operator intervention. One method to reduce operator intervention is to automate the oil skimmer tool by utilizing the UV Visible Transmission Spectroscopy method, ESP32, and a belt skimmer made from polypropylene. From this method it can be seen that oil causes changes in light intensity, where these changes indicate the amount of oil in the water.]]>
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