In this work, we look for a spacial SEIAR-type epidemic model consediring quarantined population $(Q)$, namely SQEIAR model. The dynamic of the SQEIAR model involves six partial differential equations that decribe the changes in susceptible, quarantined, exposed, asymptomatic, infected and recovered population. Our goal is to reduce the number of exposed, asymptomatic, and infected population while taking into account the environment, which plays a critical role in the spread of epidemics. Then, we implement a new strategy based on two control actions: regional quarantine for susceptible population and treatment for infected population. To demonstrate the practical utility of the obtained results, a numerical example centered on COVID-19 is presented.