Laboratory study of the simultaneous effect of discharge well and cut of wall on reducing saltwater intrusion in coastal aquifers

These days, the sea level rising and excessive harvesting of coastal aquifers has caused the intrusion of saltwater into underground water sources. In this study, the performance of the use of cut of wall, discharge well, and their simultaneous use in preventing saltwater intrusion has been evaluated in a laboratory model and under different scenarios. The results show that the appropriate use of the wall will reduce saltwater penetration by 15%. In addition, the use of a discharge well with flow rates of 0.065, 0.13, and 0.2 liters per minute will cause the return of salt water wedge by 5, 30, and 37%, respectively. The results of the simultaneous use of the discharge well with flow rates of 0.13 and 0.2 liters per minute and the cut of wall showed that the salt water wedge has retreated by 38 and 41%, respectively.