Electroplating wastewater treatment process
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Electroplating wastewater treatment - For the introduction of such electroplating wastewater treatment, since the electroplating wastewater contains a large amount of metal ions, and other pollutants such as COD and NH3-H are low in content, Lanchen Environmental Protection Co., Ltd. mainly removes metal ions from the wastewater. The content is mainly carried out by processes such as physicochemical pretreatment, coagulation sedimentation, and ion exchange column.
Introduction of electroplating wastewater: Electroplating wastewater belongs to heavy metal wastewater, mainly refers to pre-plating treatment wastewater, plating rinsing wastewater, post-treatment wastewater and electroplating waste liquid discharged during the electroplating production process. Electroplating wastewater includes single or mixed wastewater containing Cr6+, Ni2+, Zn2+, Cu2+, Cd2+, etc. produced during the electroplating production process.
This type of wastewater mainly contains a large amount of metal ions and heavy metal ions. At the same time, the pH changes greatly, mostly acidic, while the concentration of COD and NH3-H is low. Direct discharge into the water body will cause serious pollution and death of aquatic animals and plants.
Characteristics of electroplating wastewater treatment process 1. The physicochemical process and the combination of physicochemical and biochemical processes are adopted. The process is stable and feasible. The heavy metal ions and COD concentration of the system effluent reach the first-level discharge standard of the Integrated Wastewater Discharge Standard GB8978-1996.
2. The sewage treatment system has mature technology, stable water output and low operating cost.
3. The designed water volume ranges from a few tons/day to several thousand tons/day.
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