#TITLE_ALTERNATIVE#

• Main Author: YESPIN (NIM : 13013095) - DANIEL REAGENT SIHOTANG (NIM : 13013093)
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/24773
• Institution: Institut Teknologi Bandung

The tendency of fouling arising from the hydrophobicity characteristic of PP materials is a major challenge which limits the performances of PP membranes for wastewater treatment, seawater desalination, electrode separators in batteries, and biomedical areas. Therefore, modifications to hydrophilize PP membrane becomes important to prevent irreversible fouling so the membrane can be cleaned by just hydraulic cleaning. One useful physical modification technique to hydrophilize PP membrane is dipping PP membrane into nitric acid and sulfuric acid. Due to hydrophobic characteristic of PP membrane, alcohol permeators was used to enhance nitric acid and sulfuric acid hydrophilization. The drying process is also used to show the effect of the modified PP membrane and permanent hydrophilicity characteristic of PP membrane. Treated hollow fiber PP membrane at a concentration of 20 wt% nitric acid with IPA permeator in without drying process has the best water flux value of 146.42 ± 7.67 L. m-2. h-1. IPA is a better permeator to enhance nitric acid and sulfuric acid hydrophilization than methanol or ethanol but has high volatility which tends to reduce water flux greatly. Nitric acid is a better acid activation than sulfuric acid to increase pure water flux and render hydrophilic characteristic of treated PP membrane.