IDENTIFICATION OF SPREADING POLLUTANT AS GROUNDWATER MANAGEMENT EFFORTS IN YOGYAKARTA

• Main Author: Nursila Sakti, Dwi
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/44444
• Institution: Institut Teknologi Bandung

Shallow groundwater is aquifer layers are in free highly vulnerable to changes in the environment that is contaminated by sewage that flows along groundwater. Potential contamination of groundwater is often the case in areas with a high population density with on-site sanitation is derived from conventional septic tank. Increasing the number of residents who are not accompanied by improved management of sanitation facilities will be a serious problem, especially on the environment and health issue. This research was conducted in the District Danurejan, Yogyakarta that has a density of population of 19.525 people / km2 with the aim to identify the spread of pollutants to the parameters of nitrate (NO3) and predict the level of pollution in the next 10 years with the simulation if there is a waste treatment facility and if there are no waste treatment facility so that it can provide suggestions for management waste from the septic tank to keep groundwater quality. The research was done by software modeling MODFLOW and MT3DMS taking into account the hydrogeological conditions of research area. Population density in the Region Research produces leading leached nitrate concentrations in to groundwater by 45 mg/L so that during 10 years of contaminated groundwater NO3 concentrations ranged between 20 mg/L to 52 mg/L for Google Articles their WWTP NO3 concentrations less than 10 mg/L Up to 0 mg/L.