Once the larger suspended particles are gone, the colloidal particles can often stick together and create clumps that have enough mass to precipitate out. Clarification: Clarification uses specialized equipment to remove larger suspended solids from water.These particles are harder to remove, especially if the water contains other suspended particles.īelow are some of the best ways to treat colloidal silica: Because of their fineness, the particles stay dispersed in the boiler water without precipitating out, forming something called a colloid. Colloidal SilicaĬolloidal silica is much finer than granular silica. You can then remove the collected particles, leaving behind clean water that won’t form scale or cause excess wear and tear on your boiler. This process traps many organic and inorganic molecules present in the water, including silica, and causes them to sink to the bottom. As they do, they form large clumps called flocs that stick together and settle to the bottom of the boiler. Lime acts like a water softener for silica, causing calcium and magnesium - the particles that cause hardness - to precipitate out. This process involves adding lime, also known as calcium hydroxide, to the water. The most common and effective technique for removing granular silica from boiler water is lime softening. Fortunately, the particles’ large size makes them fairly easy to treat and remove through physical and chemical separation processes. One type of silica most frequently found in boiler water is granular silica, which is made of relatively large particles. Available treatment methods use mechanisms that attach to the molecules or particles in different ways, so you’ll need to use the right one for the type of silica present. The three primary types of silica you’ll find in water are granular silica, colloidal silica and reactive silica, which are differentiated based on their particle size. Potential stages for treating industrial process water include the cooling tower, boiler or blowdown water. The specific methods used for silica removal from water depend on the form of silica present. It will bring its abrasive effects to the inside of a boiler and eat away at it, causing premature wear and tear and costly repairs.
Abrasion: Silica is an abrasive substance - it’s even used for sandblasting and carving applications.Effects on pressure ranges: Those deposits and pieces can impact a system’s ability to operate at optimal pressure ranges.It can also slough off and create pieces that interrupt the flow of water. Reduced heating and cooling efficiency: Scale deposits build up on the side of equipment when silica deposits precipitate out of the water and concentrate on the heat transfer surface of the equipment. Scale is a good insulator, reducing the efficiency of the heat transfer mechanism and the equipment’s performance.They block the flow of liquids through that membrane and can cause early tearing. Membrane fouling: Silica particles can get lodged in membrane pores in reverse osmosis and nanofiltration systems.Without them, you’ll likely see early deterioration of equipment and loss of functionality due to: Silica can cause a range of negative effects that necessitate effective cleaning practices through industrial water treatment. Wherever your water comes from, silica is likely to be a major component - especially in groundwater.
SILICA WATER PROFESSIONAL
We’ll examine silica in water treatment and explore the methods professional water treatment services use to rid your process water of harmful silica particles. You need dependable methods for silica treatment that can save you money, keep your equipment in good condition and reduce maintenance needs. These crystalline particles can have significant adverse effects on your machinery long-term, which is one of the reasons why their removal is an essential part of a water treatment plan. In some boilers, just 1 millimeter of silica buildup can increase fuel consumption by 2% to 5%. Small silica particles can take root in your process water as it flows over rocks and minerals in the ground before reaching your facility.
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