Search results
Rice husk is a hydrophilic agricultural by-product obtained when the protective shell is removed from the rice grain. Its siliceous composition resists natural degradation, and its disposal can constitute a significant environmental load if no value-added use is found for it.
Jan 1, 2024 · Rice husk (RH) (Fig. 1-A) is one of the primary agricultural wastes produced in rice-cultivating countries. Despite its numerous applications, its economic benefits and contributions have not been sufficiently highlighted ( Prabhakaran et al, 2017 ; Bodie et al, 2019 ).
The rice husk, also called rice hull, is the coating on a seed or grain of rice. It is formed from hard materials, including silica and lignin, to protect the seed during the growing season. Each kg of milled white rice results in roughly 0.28 kg of rice husk as a by-product of rice production during milling.
Rice husk. Rice hulls or husks are the hard protecting coverings of grains of rice. In addition to protecting rice during the growing season, rice hulls can be put to use as building material, fertilizer, insulation material, or fuel. Rice hulls are part of the chaff of the rice.
Rice husk (RH) and its derivatives, such as rice husk ash (RHA), rice husk biochar (RHB), rice husk hydrochar (RHH), and activated carbon (RHAC), have been placed forefront for applications in agriculture and other industries.
