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Texas
Rajan Vempati
carbon dioxide
Portland Cement Association
Rice hulls, or husks, are the protective coverings on grains of rice. Rice with just its hull removed is brown rice. Rice without its hull or bran is white rice. Once rice is harvested, the hulls are out of a job. They may be taken to landfills or burned. Sometimes they are used to absorb waste in…
稻殼是稻米的保護(hù)層。如果只去掉稻米的莢就是呈黃色的糙米，如果去掉了麩或糠就是呈白色的精米。稻米一旦被收獲，稻殼就失去了作用。它們或者被送到垃圾填埋場或者被燒掉。有時(shí)候它們被放在在雞舍里吸收雞的排泄物，有時(shí)被用來改良土壤。 但德克薩斯州的一位化學(xué)家有不同的見解。 拉詹?溫帕蒂帶領(lǐng)了一個(gè)團(tuán)隊(duì)來研發(fā)使…