Bacteria-making meds in wastewater outflows


Wastewater treatment plants not only struggle removing pharmaceuticals, it seems some drugs actually increase after treatment. When researchers tested wastewater before and after treatment at a Milwaukee-area treatment plant, they found that two drugs — the anti-epileptic carbamazepine and antibiotic ofloxacin — came out at higher concentrations than they went in. The study suggests the microbes that clean our water may also piece some pharmaceuticals back together.