Implement an Ultrafiltration Process for Recycling Fluids in Multistage Parts Washers
The development of stronger membranes, such as polyvinylidene difluoride (PVDF), has expanded the application of membrane filtration. Initially designed for the food sector, it can now handle industrial process solutions with exceptionally high pH levels, temperatures, and oil concentrations. Ultrafiltration is the top technology for extending the lifespan of various process solutions due to its unique ability to concentrate oily wastewater and produce a clean permeate.
Another significant advantage of ultrafiltration is the return of some of the chemicals present in the process solutions, such as biocides, rust preventatives, and detergents. These chemicals are retained in the permeate and subsequently returned to the operational process, thereby reducing the need for fresh chemicals. This not only saves resources but also decreases operational expenses.
Furthermore, the use of ultrafiltration results in a lower volume of waste production. The thick oil layer separated by the membrane typically constitutes a small percentage of the initial volume of wastewater. This reduction in volume not only reduces waste disposal costs but also mitigates the environmental impact of waste. Ultrafiltration also contributes to this by generating only a small volume of concentrated waste that requires treatment or disposal, further enhancing its ecological advantages.
Additionally, ultrafiltration helps conserve water by allowing for the recirculation of process water within the system. The water filtered through the ultrafiltration process is immaculate, making it suitable for reuse in the parts washer, thereby conserving water. This is particularly pertinent when water consumption is substantial and water-saving technologies are relevant to the industry.
Using an ultrafiltration process to recycle the fluid in multi-stage parts washers is a feasible and efficient measure for pollution control. It extends the life of process solutions, facilitates recycling beneficial chemicals, reduces the volume of generated waste, and conserves water.