Overview of Applications of Kitchen Wastewater and Its Treatment

Abstract

Kitchen wastewater (KWW), a type of gray wastewater has garnered significant attention because of organic pollutants and oil and grease. It has hazardous effects on the environment, such as eutrophication in water bodies and choking of pipes in the sewer system. Stagnant KWW invites serious diseases like malaria, filarial, and dengue. The present water crisis demands the reuse of KWW for nonpotable purposes. This paper is mainly focused on the harmful impact of KWW on the environment, various methods used for its treatment, and its applications in different areas. It is found that phytoremediation is a low-cost method for the treatment of KWW. Reuse of KWW in various fields helps to convert its zero value to a valuable resource. Further exploration of KWW is required for determining its sustainable uses.