Product Description
Unprocessed rice husk ash (RHA) is the ash residue that remains after burning or incinerating rice husks, which are the outer protective layers of rice grains. Unprocessed RHA refers to rice husk ash that has not undergone further refinement or processing beyond the initial combustion of rice husks. It is primarily composed of amorphous silica, along with some carbon, and may contain small amounts of other minerals and elements present in the original rice husks. The high silica content is a distinguishing feature of rice husk ash.
The production of unprocessed rice husk ash involves burning rice husks under controlled conditions to create ash as a byproduct. This ash is collected and can be used in various applications. While unprocessed RHA has not been refined, it still contains silica and can be used in certain industrial applications. For example, it may be used as a partial substitute for conventional cement in concrete production, where it can improve certain properties of the concrete.
Rice husk ash (RHA) has various useful applications, including:
- Construction Industry: RHA can be used as a supplementary cementitious material in concrete. It improves the strength, durability, and workability of concrete, reducing the need for traditional cement and making it more environmentally friendly.
- Agriculture: RHA is a valuable source of silica, which can benefit plant growth when used as a soil amendment. It can also be applied as a pesticide carrier or soil conditioner.
- Water Purification: RHA can be used in water treatment processes to remove impurities and contaminants. Its porous structure can adsorb heavy metals and organic pollutants.
- High-Performance Ceramics: It is used in the production of advanced ceramics and refractory materials due to its high silica content and thermal resistance.
- Insulation Materials: RHA can be incorporated into insulation materials, such as bricks and boards, to improve their insulating properties.
- Waste Water Treatment: RHA ca used as an adsorbent to remove pollutants from wastewater, incluanny heavy metals and organic compounds.
- Steel Industry: It can be used as a protective coating for steel, preventing corrosion.
- Energy Generation: RHA can be utilized in the production of biofuels, such as bioethanol and biogas, due to its high cellulose content.
- Manufacture of Silicon Carbide: It's a key component in the production of silicon carbide, which is used in various industrial applications.
- Manufacture of Silicon Dioxide Nanoparticles: RHA can be used to synthesize silicon dioxide nanoparticles for applications in electronics, optics, and medicine.
- Production of Fertilizers: RHA can be processed to create silicon-based fertilizers that improve plant growth and resilience.
- Art and Craft: In some regions, RHA is used in traditional pottery and craftwork.
- The utilization of rice husk ash helps reduce waste, conserve resources, and offers numerous eco-friendly applications across various industries.
*Disclaimer: The above mentioned parameters will change with change in paddy varieties and harvesting conditions.
