Wastewater treatment plants. Since 1964, our company has been designing and manufacturing water treatment solutions for stone working processes or other processes that require the use and recovery of wastewater. With Dal Prete’s automated systems you can almost completely eliminate the cost of recharging your company’s water system, reusing high-quality clarified water for your processes. The level of water clarification achieved by our plants extends the life of processing tools up to 20%, saves you up to 30% on water consumption and reduces the cost of disposing residual sludge up to 50%.