Commonly used backwashing methods for deep bed filter pools? I usually rinse it for 1 minute first,Powder packing;Then the gas and low flow water are washed back for a period of time,Remove the impurities adsorbed on the filter material;Then wash back with large flow of water,Eliminate impurities,Until the water is clean;Finally, it is OK to stand still or wash again.
What parts do mechanical filters need? Introduction to adaptive and efficient mechanical filtersThe adaptive high-efficiency mechanical filter adopts the adaptive fiber filter as the core application technology. the filter material used uses the theoretical physics principle-nonlinear scientific fractal structure, and the advantages are self-adaptability and fractal structure. It not only has the efficient filtration accuracy of the fiber filter material, but also has the advantages of using the particle filter material backwashing cleanliness and low water consumption, the pore distribution of filter bed formed by using this filter material is basically close to the ideal filter layer structure. when filtering, the filter material will gradually decrease from large to small along the direction of water flow, and the void ratio distribution in the same section is more uniform, the water flow is consistent in size when filtering.When filtering, due to the poor proportion of the core and the fi
How can the domestic sewage of the hotel be filtered and purified again without sewage discharge? Domestic sewage is the wastewater discharged from residents' daily life,Mainly from residential buildings and public buildings,Such as housing, institutions, schools, hospitals, shops, public places and industrial enterprise toilets.The pollutants contained in domestic sewage are mainly organic matter (such as protein, carbohydrates, fat, urea, ammonia nitrogen, etc.) and a large number of pathogenic microorganisms (such as parasite eggs and intestinal infectious diseases, etc ).The organic matter existing in domestic sewage is extremely unstable,It is easy to corrupt and stink.Bacteria and agents breed in large quantities with organic matter in domestic sewage as nutrients,Can lead to the spread of infectious diseases.So,Domestic sewage must be treated before discharge. The most important domestic sewage is PH,Suspended matter,Chemical oxygen demand,Ammonia nitrogen,Total phosphorus,These values of residual c