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Rice Husk
Introduction
Composition
Uses
Q&A About Rice Husk
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Rice husk, the protective outer layer of rice grains, is a byproduct of rice production. Though once considered waste, it has become a versatile material with numerous industrial uses due to its unique composition.

Rice husk composition is primarily made up of cellulose, hemicellulose, and lignin. It also contains silica, which makes it abrasive and resistant to decomposition. The high silica content makes rice husk useful in various applications such as in the production of silicon carbide, activated carbon, and insulation materials. Additionally, rice husk can be used as a renewable energy source through combustion or gasification processes, making it an environmentally friendly alternative to fossil fuels. Moreover, the ash produced from burning rice husk contains high levels of potassium and can be used as a fertilizer. Overall, the composition of rice husk makes it a valuable byproduct of rice milling with various industrial and agricultural uses.

Rice husk has a wide range of uses across various industries. In the energy sector, it is utilized as biomass fuel for power generation. In construction, it is incorporated into cement, bricks, and lightweight concrete. In agriculture, it serves as mulch, soil conditioner, and animal bedding. Additionally, it is employed in water filtration systems to remove impurities. Furthermore, rice husk is used for silica extraction, which is essential for making glass, ceramics, and electronics. It also finds application as a filler in plastics and polymers, making it a versatile and valuable resource in multiple sectors.

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