Comparison of Tilapia Fish Pond Wastewater Treatment to Clean Water with Wetlands and Vetiver Phytoremediation on Fe and Odor

Greywater, a type of wastewater derived from tilapia pond feces, requires proper processing before being discharged into the river. Thus far, graywater waste treatment is discharged directly into the river. This research aims to increase the effectiveness of wastewater treatment by using a physical model consisting of 2 treatment processes including wetland and phytoremediation. This research applied the phytoremediation method and vetiver wetlands (Vetiveria zizanoides). The research variables observed were variations in wastewater discharge (X1), the number of vetiver stems (X2), wetlands residence time (X3) at intervals of 2 days, 4 days and 7 days, and water quality parameters (Y) consisting of Fe and Odor. The data analysis method used is Linear Regression with the help of the SPSS program. According to the findings of the research, the quality of waste water from tilapia fish ponds treated with vetiver is determined by the Fe parameter (iron 0.2 mg/L), which can decrease phytoremediation by up to 69% and Fe wetlands by up to 68%. In phytoremediation, the odor parameter (odorless) can be reduced by up to 92%, while in wetlands it can be reduced by up to 61.5 percent. Thus, overall it can be concluded that the use of the physical model of sewage treatment applied is able to reduce the pollutants contained in graywater waste of tilapia pond water.