A new study has found that sewage plants in the United States can remove a significant amount of medicines from wastewater. The study, which was published in the journal Environmental Science & Technology, found that sewage plants removed an average of 80% of 11 different medicines that were tested.

The study is important because it provides evidence that sewage plants can play a role in reducing the amount of medicines that are released into the environment. Medicines that are released into the environment can have a negative impact on aquatic life and can also contribute to the development of antibiotic resistance.

The study was conducted by researchers at the University of California, Berkeley. The researchers collected wastewater samples from 10 sewage plants in the United States. The samples were then tested for the presence of 11 different medicines.

The researchers found that the sewage plants removed an average of 80% of the 11 medicines that were tested. The most effective medicines were those that were highly soluble in water and those that were not bound to proteins.

The study also found that the amount of medicine that was removed by sewage plants varied depending on the type of treatment process that was used. Plants that used activated sludge treatment removed more medicines than plants that used trickling filter treatment.

The researchers say that the findings of their study suggest that sewage plants can play a role in reducing the amount of medicines that are released into the environment. They recommend that sewage plants be upgraded to use activated sludge treatment and that they be operated at optimal conditions.

The following are some of the medicines that were tested in the study:

* Acetaminophen

* Atenolol

* Carbamazepine

* Ciprofloxacin

* Diclofenac

* Erythromycin

* Fluoxetine

* Ibuprofen

* Metoprolol

* Naproxen

* Sulfamethoxazole

The following are some of the findings of the study:

* Sewage plants removed an average of 80% of the 11 medicines that were tested.

* The most effective medicines were those that were highly soluble in water and those that were not bound to proteins.

* Plants that used activated sludge treatment removed more medicines than plants that used trickling filter treatment.

* The findings of the study suggest that sewage plants can play a role in reducing the amount of medicines that are released into the environment.