SIMPLE. EFFECTIVE. EARTH-FRIENDLY.
Rice hulls are the outer covering of rice seeds and designed by Nature to protect the embryo within. Part of its armor is a generous amount of amorphous silica which the rice plant absorbs from the soil and water and deposits into the hull to make it stronger and provide a water barrier. The non-silica portion of rice hulls is composed of carbon based polymers. The RST process first conditions the hulls via aqueous treatment with very dilute citric acid (think lemonade) which neutralizes alkali salts and chelates trace metals. Next, the hulls are washed with very dilute hydrogen peroxide (similar to what’s in your medicine cabinet but much more dilute) to begin the process of oxidizing carbon based polymers. After the aqueous treatments, the hulls are dried and then incinerated to burn away all carbon based materials – leaving behind only the pure amorphous silica in its original, all-natural state. So, the initial treatment steps simply condition the hulls to burn very cleanly and completely so as not to leave any carbon behind.
The entire process is very Earth friendly. The chemicals used are benign and used in small amounts. The energy required for drying and to produce distilled water comes from burning the rice hulls – renewable fuel. The only waste is a small amount of organic material in the contact water which is easily treated by reverse osmosis to allow for re-cycling of the water.
Innovative Silica Technologies has developed a patented, low-intensity process that taps Nature to produce high purity amorphous silica.
Rice hulls, a natural source of amorphous silica, are first treated in a mild aqueous process, then dried and finally incinerated – leaving high purity, all natural silica as the end product.
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