Biochar made from corn cobs can remove microplastics and ammonia from water, offering a low-cost, reusable filter made from ...

Corn cob biochar made from farm waste can remove up to two thirds of ammonia and almost all micro and nanoplastics from water ...

Excessive use of fertilizers has fueled global food production, but it has also left behind a serious problem: nitrate pollution in soil and water. High nitrate levels threaten drinking water safety, ...