What is the ruling on treated sewage water?

Question:
We have treated sewage water in our hospital, and we are exposed to this water in many places due to the watering of gardens. We may even be exposed to its spray. Is this water ritually impure, such that it invalidates the ablution? And is it permissible to eat the fruits of the trees watered with it, or not? Please inform us, may Allah reward you with good.

Answer:
If this water has been treated until the smell, taste, and color of the impurity have disappeared, and it has become sweet, good, and sound water, then there is no harm in that. It has the ruling of purity. What affects people from it does not harm them. The trees watered with it are not harmed, and there is nothing wrong with their fruit.
However, if the traces of impurity remain in it, it must not be used, neither for the trees nor for anything else. Rather, it should be removed to another place where it does not harm the Muslims.
However, if it has been fully treated and the traces of impurity have disappeared from it in color, taste, and smell, then praise be to Allah.