Recyclling

Recycling involves processing used materials (waste) into new products (quote from wikipedia). I came across this interesting uses of waste from rice mill during my Vietnam trip. The rice husk. I'm sure we have plenty in our country. They had used the rice husk for cooking and turn the burned husk to fertilizer. They even mixed the rice husk with logan shells to bring up the aroma. The burned rice husk (carbon, not ash) is then used as a fertilizer.