A plant for the production of ceramic articles comprising: at least one first processing unit (33; 47), which is configured to produce, during the normal operation, a wastewater flow to be treated; at least one filtration unit (1; 1**) supplied with the wastewater flow produced by the first processing unit (33; 47); at least one second processing unit (27; 46), which is configured to produce, during the normal operation, at least one component in the production of the ceramic articles; at least one conveying assembly (28; 28**) to feed a concentrated product obtained from the filtration unit (1; 1**) to the second processing unit (27; 46); at least one recovery unit to recover the permeate obtained from the filtration unit; and a control unit; the plant is characterised in that the filtration unit (1; 1**) comprises: at least one tangential filtration element of the wastewater flow designed to perform a work step, which is a separation between a permeate and a concentrated product; the wastewater flow runs along a tangential filtration direction inside the filtration element; a wastewater collecting device that feeds, by means of a delivery manifold, the wastewater flow to be treated to the tangential filtration element; a feeding duct extending from the filtration element to the wastewater collecting device such that the concentrated product is recirculated inside the filtration unit (1; 1**), in particular in a continuous manner during each work cycle; and a collecting device for the permeate, which is fed through a delivery duct extending from the tangential filtration element; and wherein the filtration unit (1; 1**) is arranged for a discontinuous or intermittent operation, in which each work cycle is interrupted only in the moment in which the control unit detects a quantity of permeate, which is equal to a reference quantity (L STOP _ 3) inside the collecting device for the permeate. at least one first processing unit (33; 47), which is configured to produce, during the normal operation, a wastewater flow to be treated; at least one filtration unit (1; 1**) supplied with the wastewater flow produced by the first processing unit (33; 47); at least one second processing unit (27; 46), which is configured to produce, during the normal operation, at least one component in the production of the ceramic articles; at least one conveying assembly (28; 28**) to feed a concentrated product obtained from the filtration unit (1; 1**) to the second processing unit (27; 46); at least one recovery unit to recover the permeate obtained from the filtration unit; and a control unit; the plant is characterised in that the filtration unit (1; 1**) comprises: at least one tangential filtration element of the wastewater flow designed to perform a work step, which is a separation between a permeate and a concentrated product; the wastewater flow runs along a tangential filtration direction inside the filtration element; a wastewater collecting device that feeds, by means of a delivery manifold, the wastewater flow to be treated to the tangential filtration element; a feeding duct extending from the filtration element to the wastewater collecting device such that the concentrated product is recirculated inside the filtration unit (1; 1**), in particular in a continuous manner during each work cycle; and a collecting device for the permeate, which is fed through a delivery duct extending from the tangential filtration element; at least one tangential filtration element of the wastewater flow designed to perform a work step, which is a separation between a permeate and a concentrated product; the wastewater flow runs along a tangential filtration direction inside the filtration element; a wastewater collecting device that feeds, by means of a delivery manifold, the wastewater flow to be treated to the tangential filtration element; a feeding duct extending from the filtration element to the wastewater collecting device such that the concentrated product is recirculated inside the filtration unit (1; 1**), in particular in a continuous manner during each work cycle; and a collecting device for the permeate, which is fed through a delivery duct extending from the tangential filtration element; and wherein the filtration unit (1; 1**) is arranged for a discontinuous or intermittent operation, in which each work cycle is interrupted only in the moment in which the control unit detects a quantity of permeate, which is equal to a reference quantity (L STOP _ 3) inside the collecting device for the permeate.