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biomass
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2nd/3rd generation
biomass
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rice husk
agricultural residue
biomass composition
Rice husk constitutes about 20% of the weight of rice and its composition is as follows: cellulose 50 w.-%, lignin 25 w.-%–30 w.-%, silica 15 w.-%–20 w.-%, and moisture. Bulk density of rice husk is low in the range 90–150 g/cm3.
current disposal methods
Incorporating straw and rice husk into the soil delays soil preparation and the development of the next crop. Because of this, rice straw and husk is often considered a waste product. It is either burned in the fields, resulting in airborne emissions hazardous to humans and the ecosystem or dumped into surface water like rivers and waterways.
environmental impact
This practice causes hazardous air pollution, increased emission of greenhouse gases, and loss of nutrients from farmers’ fields.
some technical data
processing size
M (medium / not processed)
mesh size
2
density [g/cm3]
0.74 g/cm3
hardness [Mohs]
volatile carbon content
33.9 %
water affinity
hydrophobic
impressions
rice husk
