water treatment chemicals and textile auxiliary nonionic in canada

water treatment chemicals and textile auxiliary nonionic in canada
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  • Can model textile wastewater be purified using nanofiltration and reverse osmosis?
  • Conclusions Model textile wastewater (MTW) was purified using two membrane filtration processes arranged in series, i.e., nanofiltration (NF) and reverse osmosis (RO). In the first stage, the possibility of treating textile wastewater containing various types of detergents in the nanofiltration process was investigated.
  • Can textile wastewater containing detergents be treated in the nanofiltration process?
  • In the first stage, the possibility of treating textile wastewater containing various types of detergents in the nanofiltration process was investigated. The greatest decrease in flux in the initial phase of the process occurred for the detergents based on fatty-acid condensation products.
  • What is the conductivity reduction of MTW containing nonionic surfactant?
  • For the MTW containing the nonionic surfactant, the conductivity reduction ranged from 84% to 92% depending on the concentrate ratio at the consecutive stages of RO. After treatment, the purified wastewater was reused in the process of dyeing cellulose fibers with reactive dyes.
  • Do textile effluents need tertiary treatment?
  • Textile effluents require tertiary or advanced treatment to remove particular contaminants or to prepare the treated effluent for reuse. Removing waste organic color components by adsorption and removing dissolved particles by membrane filtration are two frequent tertiary processes.