High-speed rail station domestic sewage treatment equipment The high-speed rail station sewage treatment process usually includes the following steps:
Wastewater collection: First, the wastewater generated by the high-speed rail station is collected and introduced to the wastewater treatment station.
Primary treatment: Removal of suspended solids and sediments from wastewater by physical methods such as sedimentation and separation. This step is usually done in a wastewater collection tank.
Intermediate treatment: biotechnology is used to further remove organic matter and elements such as nitrogen and phosphorus from wastewater. This typically includes activated sludge processes, which treat substances such as nitrogen and phosphorus through microbial degradation of organic matter, as well as processes such as anammox and aerobic nitration.
Advanced treatment: In order to achieve higher water quality objectives, more complex technologies such as coagulation, adsorption and advanced oxidation are used. These technologies can further degrade and remove residual organic matter and refractory pollutants such as heavy metals in high-speed rail wastewater.
Wastewater discharge or reuse: Treated wastewater, if it meets national discharge standards, can be safely discharged into natural water bodies;If a certain water quality index is reached, it can also be used for reuse purposes such as agricultural irrigation and industrial cooling.
High-speed rail station wastewater treatment is a multi-stage process, which requires a comprehensive consideration of physical, chemical and biological methods, as well as the application of natural purification systems, to achieve efficient and environmentally friendly treatment results. The specific process flow and parameters may vary according to the specific situation of the high-speed rail station.