PREPARATION AND CHARACTERIZATION OF SULFONATED POLYVINYL CHLORIDE ULTRAFILTRATION MEMBRANES FOR PEAT WATER FILTRATION

• Main Author: Indrasari Boemara, Alifia
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik saniter dan perkotaan; teknik perlindungan lingkungan
• Online Access: https://digilib.itb.ac.id/gdl/view/86016
• Institution: Institut Teknologi Bandung

Indonesia has a large amount of peatland. Peat water contains high amounts of natural organic matter in humic acid form. Besides reverse osmosis (RO) and nanofiltration (NF) technology, humic acid removal can be done using ultrafiltration (UF). The purpose of this research is to determine the effect of the percentage composition of polyethylene glycol (PEG400) on the characteristics of polyvinyl chloride (PVC) ultrafiltration membrane, to determine the effect of sulfonation process on the characteristics of PVC ultrafiltration membrane, and to determine the performance of PVC ultrafiltration membrane in peat water treatment process. The research method is done in three steps: membrane preparation, membrane characterization, and water filtration, including water analysis. The result showed peat water has a high organic content. PVC membranes contain PVC, PEG400, tetrahydrofuran (THF), N,N-dimethylacetamine (DMAc), ethylene diamine (EDA), and sulfuric acid compounds. The addition of PEG400 to the membrane increased the hydrophilicity, flux, and permeability of the membrane and decreased the water contact angle (WCA) value. Meanwhile, sulfonation on the membrane increases ion exchange capacity (IEC) and WCA and decreases membrane permeability. In addition, the results also show that filtration of peat water using PVC ultrafiltration membranes can reduce the content of color, turbidity, conductivity, organic compounds, and chemical oxygen demand (COD). The percentage removal values obtained in the peat water filtration process are: color (76.51%); turbidity (97.47%); conductivity (17.54%); organic matter (84.89%); and COD (99.99%).