One of the most serious environmental problems is water scarcity and water pollution is a worldwide issue that can have an impact on people, plants, animals, and trees. Reusing wastewater makes sense in light of the limited availability of freshwater sources to conserve and expand the pool of available water sources. Numerous things can contaminate water supplies. Although the fundamental concepts are usually the same, the process of water restoration may vary from one location to another based on the source of contamination. Dyes are a versatile group of organic compounds found in many industries ranging from textiles, papermaking, leather tanning, and food processing. However, untreated or partially treated dye-containing wastewater in the environment can have a significant impact on human health and ecosystems. Dyes can color water bodies, making them aesthetically displeasing and inhibiting the penetration of sunlight. This may cause water plants and algae to produce less. While certain dyes are carcinogenic or mutagenic to humans, others are poisonous to aquatic life.