Adinda Yufriza
Department of Chemical Engineering, University of Jember, Indonesia 68121 

Husna Wardati
Department of Chemical Engineering, University of Jember, Indonesia 68121 

Zuhriah Mumtazah
Department of Chemical Engineering, University of Jember, Indonesia 68121 

Ditta Kharisma Yolanda Putri

Department of Chemical Engineering, University of Jember, Indonesia 68121 

Meta Fitri Rizkiana
Department of Chemical Engineering, University of Jember, Indonesia 68121 

Reva Edra Nugraha
Department of Chemical Engineering, Faculty of Engineering, Universitas Pembangunan Nasional “Veteran” Jawa Timur, Surabaya, East Java, 60294, Indonesia

DOI: https://doi.org/10.19184/jobc.v3i1.279         

ABSTRACT
The practical technique for membrane modification is dip coating. This study coats a PVDF hollow fiber membrane-based composite with a zeolite coating. The composite is made of a polyvinylidene fluoride (PVDF) membrane. The separation capabilities and propensities of composite membranes for organic impurities were examined during water filtering. Fourier-transform infrared spectroscopy analysis of the findings demonstrated that the Zeolite coating was successfully deposited on the PVDF membrane. The flux recovery ratio increases from 69% to 80% while the relative flux drop decreases from 63% to 50%. A composite PVDF membrane dip-coating of Zeolite with a GA and H2SO4 ratio of 1:2 is needed to remove about 75% of humic compounds from effluent. This study's results show that adding Zeolite with a GA and H2SO4 layer can significantly improve the PVDF hollow fiber membrane's hydrophilicity, selectivity, and anti-organic fouling.

Keywords: fouling, PVDF, dip-coating, membrane performance

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