For residential settings, whole house RO is one way to reduce all types of silica.īecause it is so difficult to remove silica from the water, the most common approach to deal with it is one of prevention and mitigation of deposits. Whole-House Reverse Osmosis is another way to reduce all types of silica. This ion-exchange method can be used for reactive silica. Specialised polymeric ultra-filters are used for industrial water treatment to capture colloidal silica.Īnion exchange can also be used for reactive silica. Ultra-filtration is another way to reduce silica in your water. Silica binds to the MgOH and settles out. This process uses CaOH and Soda Ash to raise the pH to extreme levels, causing precipitation of CaCO3 and MgOH. Lime-soda softening is one way to reduce silica in your water. They offer a wide range of products and services to help you reduce silica in your water. There are a number of ways to remove silica from water, including reverse osmosis, ion exchange, and nanofiltration.Īdvance Engineers are experts in analysers and water treatment. If you are using water in your industrial process, it is important to test for the presence of silica and to take steps to remove it if it is present.Fouling: Silica can foul membranes and other process equipment, which can lead to a decrease in efficiency and an increase in operating costs.Corrosion: Silica can also cause corrosion in process equipment.Scaling is the build-up of mineral deposits on the surfaces of process equipment. Scaling: When silica is present in water, it can cause scaling on heat exchangers, boilers, and other process equipment.Silica can cause a number of problems for industrial water treatment: Silica in Water can Cause Significant Problems for Industrial Water Treatment. Silica concentration in water is commonly less than 30 mg/L, although concentrations higher than 100 mg/L are not unusual. Most water contains an abundance of silicon and its derivatives, silica (SiO2) or silicates (SiO4 – and SiO32–). which is dissolved in water as the bisilicate ion making it weak acid and the other form is known as “Colloidal Silica” a polymeric form of silica where the particles are ultra-fine. Silica exist in water in two main forms one “Reactive Silica”. Though the solubility of silica in water is low and slow, its sheer abundance means that is present in ground water supplies. This very common mineral has many different forms and is most easily recognized in nature as the mineral quartz and the second most abundant element in the Earth’s crust, after oxygen. Silica, also known as silicon dioxide (SiO2) or mineral quartz, is a derivative compound of the chemical element silicon (Si).
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