This lecture illustrates case study of wastewater treatment in petroleum refining industry which includes introduction of petroleum refinery, list of oil refineries in India, wastewater management in petroleum refining industry, refinery wastewater pollutant sources, control & treatment technology in refining industry. It also illustrates physio-chemical treatment and typical refinery wastewater treatment, desalter oil/water separation, powdered activated carbon treatment system, chemical oxidation system, microfiltration or ultrafiltration, reverse osmosis, and ion exchange process for wastewater treatment in petroleum refining industry. It further illustrates effluent environmental standards for petroleum oil refineries, and water quality standards.

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