THE COMBINATION OF BAGASSE AND CHITOSAN AS A MEMBRANE IN ELIMINATION OF CROSSFLOW BATIK WASTE POLLUTANT PARAMETERSFIRRA ROSARIAWARI, FATIA HEDIANA AND WAHID DIANBUDIYANTOAbstract Batik waste is an industry that produces liquid waste that has levels of chemical oxygen demand (COD), total suspended solids (TSS) and colors that require treatment first so as not to cause pollution to surface water. Processing using a filtration membrane is one of the selected treatments. The advantages of filtration processing using membranes are low energy consumption, do not require a large area, and the process is easy to combine with other separation processes as well as various raw materials for making membranes. The membranes used in this research were Chitosan and bagasse. The crossflow flow is chosen because it reduces the fouling that occurs. Previously, the coagulation-flocculation process was carried out as a pretreatment process for effectiveness in processing this home industry batik waste. Scanning electron microscope (SEM), Energy dispersive x-ray (EDX) was carried out to determine the morphology and elements contained in the membrane. Analysis of research parameters namely COD, TSS and color. Based on the research results the best COD rejection value was 42.67% and the value rejection to TSS removal was 64.29% and the best rejection value for color removal was 71.6% with a membrane of chitosan: PVA ratio 75%: 25% with a contact time of 20 minutes because the longer the filtration time, the greater the rejection value obtained. |