Global rice paddy production amounts to around 700 million tonnes each year, and some 20 per cent of this total paddy weight is made up of rice husk, which is separated in the rice milling process and has traditionally been discarded by burning (including to generate electricity) or by dumping in landfill. But in recent times new uses have been found for this former waste. Goodyear Tire & Rubber, for example, has tested silica derived from rice husk ash over the past two years.
- 10.06.2015
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