Sustainable wastewater treatment by RO and hybrid organic polyamide membrane nanofiltration system for clean environment

Chemosphere. 2023 Oct:337:139336. doi: 10.1016/j.chemosphere.2023.139336. Epub 2023 Jun 26.

Abstract

One of the environmental pollution is happened by the discharge of industrial wastewater that needs to be adequately filtered. Given that the effluent from the leather industry contains high levels of chromium, heavy metals, lipids, and Sulphur, it is one of the wastewater disposals that are most damaging. This experimental study focuses on reverse osmosis and hybrid organic polyimide membrane for nanofiltration for sustainable wastewater treatment. In the RO and organic polyamide Nano-porous membranes, a thin film of polyamide membrane was used for efficient filtration. Taguchi analysis optimized process parameters such as pressure, temperature, pH, and volume reduction factor. The outcome shows an 89% reduction in total wastewater hardness, an 88% reduction in sulfate, and an 89% efficiency reduction in COD. As a result, the proposed technology significantly increased filtration efficiency.

Keywords: Environmental; Nanofiltration; Sustainable; Thin film; Wastewater treatment.

MeSH terms

  • Filtration
  • Membranes, Artificial
  • Nylons
  • Osmosis
  • Waste Disposal, Fluid
  • Wastewater*
  • Water Purification*

Substances

  • Wastewater
  • Nylons
  • Membranes, Artificial