Municipal water sources use a process called flocculation and sedimentation to settle out unwanted particles from a water source. However, smaller particles, called colloidal particles, remain. These colloidal particles include viruses, bacteria such as E. coli, and micro- and nanoplastics (MNPs). Harmful chemicals also can remain, such as per- and polyfluoroalkyl substances (PFAS).

Municipal water sources deal with viruses and bacteria primarily using chlorine or UV light, which simply leaves the dead matter in the water. Chlorine itself is harmful in larger doses. Dealing with harmful chemicals such as PFAS requires additional expensive and energy intensive water filtration systems, such as granulated activated carbon (GAC) or reverse osmosis (R/O) systems not suitable for larger municipal water systems. MNPs are unregulated, although widespread concern about their health effects as endocrine disrupters is growing.

Diffusiophoretic water filtration (DWF) is the only water filtration platform capable of dealing with all of these issues in a cost-effective and efficient manner. DWFs also can eliminate or starkly reduce the need for chlorine or UV treatment. In the future, every municipal water source will need a DWF system to remove colloidal particles and harmful chemicals. DWF systems are built on food-grade inexpensive silicone and run with almost no energy using small amounts of low-cost carbon dioxide. DWF systems are safe, clean and incredibly effective.

In addition to municipal water systems, DWFs have applications for water from wells and military and personal consumption.

Split Rock™ diffusiophoretic water filters - the future of clean water.