Alkaline waste is a kind of highly toxic and hazardous alkaline wastewater from oil refinery after alkali cleaning of oil products,which contains a great deal of sulfide,phenol and oil pollutants.

• 炼油碱渣是石油炼制过程中油品碱洗精制时产生的一种含有大量硫化物、酚类和石油类等污染物的碱性废液。