7 research outputs found
An efficient wastewater treatment approach for a real woolen textile industry using a chemical assisted NF membrane process
No full textSelective Separation of Dyes and Brine Recovery from Textile Wastewater by Nanofiltration Membranes
No full textRemoval of evans blue by using nickel-iron layered double hydroxide (LDH) nanoparticles:Effect of hydrothermal treatment temperature on textural properties and dye adsorption
No full textTreatment of highly concentrated dye solution by coagulation/flocculation–sand filtration and nanofiltration
Get PDFAbstractTreatment of highly concentrated C.I. Acid Black 210 dye solution using direct coagulation/flocculation–sand filtration (without sedimentation) and nanofiltration has been investigated in this paper. It was found that none of the treatments were able to fully decolourise the dye solution, but nanofiltration permeate quality was better, based on colour, residual dye, pH, and total organic carbon. The red colour for the sand filtration filtrate might be due to the formation of stable aluminium–sulphonic acid complexes. The sand filtration breakthrough after coagulation/flocculation is estimated at around 45min. For nanofiltration of highly concentrated dye (>1000mg/l), the separation factor analysis had confirmed that the mechanism of dye molecules attached to the membrane surface is irreversible adsorption
