Centrifugal pump performance is reported to be low when the pump is exposed to contaminated fluids during pump operation. The contaminated fluids are reported to have caused pump scaling and fouling. Most centrifugal pumps are reported to have been damaged due to pump scaling and fouling. The suction strainers are usually used to prevent scaling and fouling by preventing unwanted impurities from getting into the centrifugal pump system during operation. The current suction strainers used in a centrifugal pump system are having pore sizes that are poorly characterised leading to the current problem of poor separability during pump operation. Membrane technologies used in separation technology are reported to have better separability if the membrane pore sizes are properly characterised for optimal separability. In the current study, a new approach is used to design suction strainers using membrane technology for efficient and stable performance of the centrifugal pump. The tools of computational fluid dynamic and stochastic mechanics are used to model the fluid flow characteristics, and to characterize the membrane pore size distribution without the flow of impurity in the pump system for efficient, and stable performance. The following facts are theoretically derived and validated after theoretical modelling and simulation of the relevant parameters. The first signal of fouling of a membrane is a reduced volumetric flux, and this is caused by resistance which is due to concentration polarisation and reduced mass transfer coefficient. It was also shown that the design membrane has its own resistance which, when kept to a minimum will have a high initial volumetric flux. A better performing membrane will have a low resistance which subsequently will increase the initial volumetric flux, consequently increasing the rate at which fouling occurs. It was also shown that the trans-membrane pressure is directly proportional to volumetric flux; however there is a deviation when impurities are deposited onto the membrane surface and into the membrane pores.Centrifugal pump performance is reported to be low when the pump is exposed to contaminated fluids during pump operation. The contaminated fluids are reported to have caused pump scaling and fouling. Most centrifugal pumps are reported to have been damaged due to pump scaling and fouling. The suction strainers are usually used to prevent scaling and fouling by preventing unwanted impurities from getting into the centrifugal pump system during operation. The current suction strainers used in a centrifugal pump system are having pore sizes that are poorly characterised leading to the current problem of poor separability during pump operation. Membrane technologies used in separation technology are reported to have better separability if the membrane pore sizes are properly characterised for optimal separability. In the current study, a new approach is used to design suction strainers using membrane technology for efficient and stable performance of the centrifugal pump. The tools of computational fluid dynamic and stochastic mechanics are used to model the fluid flow characteristics, and to characterize the membrane pore size distribution without the flow of impurity in the pump system for efficient, and stable performance. The following facts are theoretically derived and validated after theoretical modelling and simulation of the relevant parameters. The first signal of fouling of a membrane is a reduced volumetric flux, and this is caused by resistance which is due to concentration polarisation and reduced mass transfer coefficient. It was also shown that the design membrane has its own resistance which, when kept to a minimum will have a high initial volumetric flux. A better performing membrane will have a low resistance which subsequently will increase the initial volumetric flux, consequently increasing the rate at which fouling occurs. It was also shown that the trans-membrane pressure is directly proportional to volumetric flux; however there is a deviation when impurities are deposited onto the membrane surface and into the membrane pores.