Using biochar to remove antibiotics from wastewater
To feed the world’s growing population, farmers need to grow a lot of crops. Crops need water to grow and thrive, and the water used to irrigate crops makes up an estimated 70% of global freshwater use. But many areas across the world are plagued by water shortages. That can make it challenging for farmers to get enough water to grow crops. Researchers are exploring alternative water sources that can sustainably meet current and future irrigation needs. … [A] new study … shows local plant material or food waste could be used to remove antibiotics from municipal wastewater. The researchers used biochar, a charcoal-like substance, which is created by heating organic materials at high temperatures in the absence of oxygen.