Integration of Membrane Bioreactor and Reverse Osmosis for Textile Wastewater Treatment and Reclamation: A Pilot-Scale Study

Po Hsun Lin, Pin Hui Lee, Emily K. Kin

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Membrane bioreactor (MBR) technology, a combination of traditional activated sludge and membrane filtration, has been widely used for industrial wastewater treatment and reclamation. This paper highlights a pilot-scale MBR system treating textile wastewater from a textile factory in Taiwan. Over 7 months of continuous operation, the average MBR influent chemical oxygen demand (COD) is 332 mg/L, and the average effluent COD is 38 mg/L, which results in approximately 88% COD removal. A reverse osmosis (RO) module is installed after 2 months of MBR operation and uses the MBR permeate as its influent. The RO produces pure water with average COD, conductivity, and color of 7 mg/L, 16 μS/cm, and 7 Pt-Co, respectively. The RO permeate is suitable for reuse in manufacturing processes, and the RO membrane shows stable performance with TMP, which is less than or equal to 0.5 kg/cm2 during the test. The study demonstrates the great feasibility of MBR combined with RO for treating and reclaiming textile wastewater.

Original languageEnglish
Pages (from-to)1-10
Number of pages10
JournalProceedings of Engineering and Technology Innovation
Volume25
DOIs
StatePublished - 31 Aug 2023

Keywords

  • membrane bioreactor
  • reverse osmosis
  • textile wastewater
  • transmembrane pressure

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