waste water from the cities of qorveh into a drinking water standard, and it is being used in the zarkouhd mine, that is , we have obtained potable water from the waste water, which is being used. yes, this is correct. in fact, this is happening in developed countries in the world, unfortunately, in our country , we did not pay much attention to this issue, but considering the problems we have in terms of water shortage, we must definitely go in the direction of recycling sewage and effluents, god willing . with this technology. mr dr. tari, we have talked about its application in one of the industries . well, in the past years, nanotechnology has been able to have a very diverse penetration in different industries. it was in the construction industry , it was the automobile industry, and the automobile manufacturers were able to meet their various needs. it was the health industry. that we had bread and medicines in abundance, they explain how this influence in different areas and different industries came about, how did we define it and is the latest industry available, while you are in