High-speed rail (HSR) in China consists of a network of passenger-dedicated railways designed for speeds of 250–350 km/h (155–217 mph). It is the world’s longest high speed railway network, and is also the most extensively used. China’s HSR accounts for two-thirds of the world’s total high-speed railway networks.In 2019, China started testing a magnetic levitation (“maglev”) prototype train that runs at 600 km/h.
The wastewater treatment plant was also needed for the Railway Station,The sewage and excrement on the high-speed rail are concentrated in the sewage box under the car. All the sewage in the bathroom is in this sewage box. After the car arrives at the station, the excrement sucked out by the vacuum pipe is sent to the underground sewage pipe The sewage on the high-speed rail can be collected and treated together. So how to deal with it effectively? Because the sewage and excreta on the high-speed rail contain a large amount of phosphorus, we can use chemical precipitation to deal with it. The chemical precipitation method is a method of removing phosphorus-containing sewage. The chemical precipitation method refers to the method of using metal ions and phosphates generated by calcium salts, iron salts, etc. to form insoluble phosphate precipitates to remove phosphorus in sewage. Secondly, biological methods can also be used for effective treatment. Biological methods can The effective removal of phosphorus in sewage, the biological method refers to the phosphorus-based bacteria, under aerobic and anaerobic conditions, the alternate operation to achieve the removal of phosphorus in sewage.
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