Whenever he'd walk to village factories, he would often see grain hulls, cornhusks, sugarcane roots, and other agricultural byproducts discarded by farmers. He thought it was a shame they were going to waste, so he began to research how to find some use for these waste products.
他往來農村工廠時，常常看見穀殼、蔗根、玉米桿等被農民隨意丟棄，覺得十分可惜，於是開始研究如何廢物利用。