What are the application cases of solid-liquid separation and filtration in water treatment?

Solid-liquid separation and filtration is a common technical method in the water treatment process, which is mainly used to separate solid particles from liquid in water, so as to achieve water purification and improve water quality. The following are some application cases of solid-liquid separation and filtration in water treatment:

1. Tap water treatment: solid-liquid separation and filtration play a key role in tap water treatment, which can remove suspended particles, turbidity, sediment, etc., so that the water becomes clear and transparent, and meets the drinking water sanitation standards.

2. Sewage treatment: solid-liquid separation and filtration can be used for primary treatment and secondary treatment of sewage treatment plants, separating solid particles such as impurities, sediment and biofilm in sewage, purifying water quality, reducing sludge volume and organic matter content, and realizing sewage reuse or discharge.

3. Industrial wastewater treatment: solid-liquid separation and filtration can be applied in the process of industrial wastewater treatment to remove suspended particles, oil pollution, heavy metals and other harmful substances in the wastewater, so as to achieve discharge standards or resource utilization.

4. Freshwater aquaculture industry: solid-liquid separation and filtration can be used for water purification and waste treatment in freshwater aquaculture industry, filtering the residual feed, feces, dead solids and other solid wastes in wastewater to keep the water clean and improve the water aquaculture environment.

5. Groundwater and surface water treatment: solid-liquid separation and filtration can be applied to the treatment process of groundwater and surface water to remove suspended solids and microorganisms in water and improve water quality for agricultural irrigation or urban water supply and other purposes.

6. River and lake treatment: solid-liquid separation and filtration can be used for pollution control projects of rivers and lakes, effectively removing eutrophication pollutants and sediment in lake water, improving water environmental quality and restoring clean water quality.

7. Food industry wastewater treatment: solid-liquid separation and filtration can be applied to the wastewater treatment of catering, food processing and other industries, to remove suspended particles, food residues, fats and other solid wastes in the wastewater, purify the wastewater, and avoid pollution to the environment.

8. Petrochemical wastewater treatment: solid-liquid separation and filtration can be used for oil-water separation in petrochemical wastewater, sludge treatment and other processes to reduce the concentration of pollutants such as oil and suspended matter in industrial wastewater, and realize the purification and reuse of wastewater.

In summary, solid-liquid separation and filtration has a wide range of applications in the field of water treatment, through the separation and treatment of solid particles in water, effectively improve the level of water quality and environmental protection, is an important water treatment technical means.