Wastewater type:Petrochemical oily wastewater
Industrial oily wastewater comes from a variety of sources, such as crude oil extraction, refining, petrochemical industry, lubricants, metal processing, coolants, mechanical lathes, etc. Usually oily wastewater has the characteristics of high oil content, high chemical oxygen demand (COD) and high chroma. The oil or grease contained in it is usually not a single component, but a variety of mixed substances, and the composition is complex.