Railway low-carbon water supply and drainage treatment system and treatment method thereof

The invention discloses a railway station low-carbon water supply and drainage treatment system and a treatment method thereof.The railway station low-carbon water supply and drainage treatment system comprises a rainwater collecting pipe and an underground seepage water collecting pipe, the rainwater collecting pipe and the underground seepage water collecting pipe are both connected with a flood control water collecting tank, the flood control water collecting tank is connected with a water distribution tank through a filtering station, and the water distribution tank is connected with a municipal water supply pipe; flowmeters and electric switch valves are arranged between the water distribution tank and the filtering station and between the water distribution tank and the municipal water supply pipe, the water distribution tank is connected with a toilet flushing pipe, a flower and plant drip irrigation pipe, a fire fighting pipe and a spraying pipe through a pressurization station, the water distribution