– Indococo
Rice Husk Ash
Rice husk ash (RHA) is a fine, powdery substance created by the combustion of rice husks, which are the outer protective layers of rice grains. During the burning process, the husks are heated at high temperatures, leaving behind a residue that is rich in silica (SiO2) along with other trace minerals. The high silica content, typically ranging between 80% to 95%, gives RHA its unique properties, making it a valuable material used in construction, agriculture, and industrial applications such as cement production, soil amendments, and water filtration.
Used For.
Construction Material
Rice husk ash is often used as a partial replacement for cement in concrete production due to its high silica content. It enhances the strength and durability of the concrete, while also making it more eco-friendly by reducing the reliance on traditional cement.
Soil Amendment
RHA is beneficial as a soil conditioner for improving soil health. Its ability to enhance soil structure, retain moisture, and provide essential nutrients makes it a good organic fertilizer for improving crop yields.
Water Filtration
Rice husk ash is utilized in water purification systems as a natural adsorbent. Its high surface area and porous texture enable it to filter impurities and help in removing harmful substances from water.
Production of Silica-Based Products
The silica in rice husk ash is often extracted and used in the manufacture of high-value products such as silicone, silica gel, and even in the production of glass and ceramics.