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Dyes are the substances that are used to impart color to textiles, fabrics, leather, or other materials. These are such colored substances that bond chemically to any substrate to which they are being applied. Any fabric’s attraction is its color. Regardless of how great its development is, if not colored as expected to be, it will fall flat as a business material. Therefore, the turn of events and utilization of manufactured colors for texture coloring has formed into a multibillion-dollar industry. In actual, humanity has known about the specialty of adding color to texture since 3500 BCE. They look attractive after coloring but their waste is toxic to the environment. Scientists, then again, are worried about their toxic nature. Engineered colors adversely affect all parts of life. Dyes have harmful effects upon water bodies as much waste from industries goes to rivers, lakes, etc. which ultimately causes water pollution. So, quick prevention measures need to be taken for saving the environment from dye waste. This paper likewise tells the classification and toxicity of some synthetic dyes and provides a brief idea about present methods for the removal of dyes from the environment which includes adsorption, chemical precipitation, inorganic materials usage, membrane filtration, and ion exchange. It also provides aspects affecting adsorption of color like arrangement pH, adsorbent portion, and temperature. |
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