wastewater treatment for removal of dyes by coagulation at malaysia

wastewater treatment for removal of dyes by coagulation at malaysia
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  • What technologies are used to remove dyes from wastewater?
  • In this review, recent technologies for the removal of dyes from wastewater are discussed briefly. The technologies such as coagulation, membrane treatment, advanced oxidation process, biological treatment and adsorption, their performance, features, advantages and disadvantages have been highlighted.
  • Can coagulation-flocculation be used to remove dye from wastewater?
  • The fouling problem of nanofiltration membrane in dye removal from wastewater could be mitigated by applying coagulation-flocculation to pretreat the feed. The combination of CF and NF can complement each other’s strengths and overcome their individual limitations during dye wastewater treatment.
  • What coagulants are used to remove dye from industrial wastewater?
  • Tamarindus indica and Azadirachta indica have been reported as highly effective natural coagulants for dye removal from industrial wastewater effluents (Mathuram et al., 2018). In the coagulation-flocculation approach, several chemical coagulants were also used.
  • How to remove dye from wastewater?
  • Brie y, dye removal from wastewater can be achieved through physical separation, chemical processes or biological degradation. Some important techniques which are widely used for the removal of dyes include adsorption, oxida-tion, biological treatment, electrochemical treatment, membrane ltration and coagulation–occulation.