polyacrylamidefor wastewater treatment of electroplating in china

polyacrylamidefor wastewater treatment of electroplating in china
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  • How is electroplating sludge treated in polyacrylic acid (PAA) solution?
  • Nguyen et al. (Manh Khai et al., 2021) used a three-stage treatment process to treat electroplating sludge in polyacrylic acid (PAA) solution, resulting in removal rates of Ni and Cu as high as 99.7% and 99.72%, respectively. Wet leaching can achieve selective leaching of metals.
  • What is the proportion of electroplating wastewater treated by chemical methods?
  • It has been reported that the proportion of electroplating wastewater treated by chemical methods in China is approximately 41%, while in Japan, the proportion is as high as 85%.
  • What are the advantages of chemical treatment for electroplating wastewater?
  • The chemical treatment has become the main method for treating electroplating wastewater due to its advantages of low initial cost, mature process, low use conditions, and high degree of electrical control (Quiton et al., 2025).
  • What is electroplating wastewater treatment by microorganism?
  • The study of electroplating wastewater treatment by microorganism originated in the 1980s. There are three levels of chemical, physical and genetic cooperation mechanisms. Some microbial metabolites can change the valence state of heavy metal ions in the wastewater.