The decolorizing agent for wastewater from electroplating plant can reduce pollution

The decolorizing agent for wastewater from electroplating plant can reduce pollution.

Electroplating wastewater is harmful to environmental. After the colored substances in the wastewater enter the water, they will reduce the transparency of the water, impede the transmission of sunlight, affect the photosynthesis of aquatic plants, and thus affect the normal operation of the entire aquatic ecosystem. Some colored wastewater containing heavy metal complexes not only has a color that is difficult to remove, but the heavy metal ions can also be toxic to aquatic organisms, leading to the death of organisms or a decline in their reproductive capacity, and damaging the biodiversity of the water.

The decolorizing agent for electroplating plant wastewater can demulsify the surfactants and emulsified oil components in the wastewater based on the principle of flocculation and sedimentation. It electrolyzes these substances into small particles, which then sink under the action of gravity through flocculation and sedimentation, achieving the process of solid - liquid separation. Its purposes include removing suspended organic matter, reducing the COD (Chemical Oxygen Demand) in water, eliminating color, and simultaneously reducing the organic load of subsequent biochemical treatment, thus playing multiple roles.

After the decolorization treatment of electroplating wastewater, the water quality is significantly improved. The colority is reduced, the transparency is increased, which is more conducive to subsequent advanced treatment and reuse. For example, it can be used in some cleaning processes of the electroplating production line, realizing the recycling of water resources, reducing the consumption of fresh water, lowering production costs, and at the same time reducing the discharge of wastewater. This is of great significance for alleviating water shortages and reducing environmental pressure.

Facilitating heavy metal recovery: Heavy metals in electroplating wastewater are important resources. Decolorization treatment can remove the organic substances and colored substances that interfere with heavy metal recovery, making the heavy metals exist in a purer form. This facilitates subsequent recovery using methods such as chemical precipitation, ion exchange, and electrochemistry, improving the recovery rate and purity of heavy metals, realizing the recycling of resources, reducing production costs, and simultaneously reducing the environmental pollution caused by heavy metals.