Mechanical filtration equipment principle and characteristics

One or more filter media are used in the mechanical filter to pass the sewage through the medium under a certain pressure to remove unnecessary impurities, and the filter media filled therein are generally quartz sand, anthracite coal, manganese sand, etc. You can choose according to actual production conditions.

Mechanical filters have a very good scavenging effect on suspended solids, organic matter, particles, microorganisms, and some heavy metal ions in sewage, and its advantages include the following:

1. The filtration speed is fast. The filtration speed of this equipment can generally reach 20-60m/h, which is 3 times of the sand filter, but its floor space is much smaller than the sand filter. 2. The filtration accuracy of the equipment is high. The removal rate of suspended solids with a particle diameter greater than 5 μm can reach 90 - 95%. The turbidity of the effluent is also lower than that of a normal sand filter, and it also has adjustability; 3. The amount of pollutants is large, and the amount of pollutants contained in the equipment is greater than 20Kg/m3, more than 4 times of general equipment; 4, water consumption of backwashing is low, only 0.50--1% of water production; 5, the application of a wide range of equipment, water turbidity from 15Ftu-200Ftu not Etc., the effluent turbidity is less than 3Ftu, and can continue to expand; 6, the requirements for backwashing is not very high, under normal circumstances can use the original water backwash method; 7, usually do not need to discharge The initial filtration water is very simple to use; 8, the effect of backwashing is good, the stretching space of each filter layer in the equipment is relatively large, so the cleaning effect is better; 9, has stable chemical properties, long service life 10, due to equipment The amount of backwash required is small, and the scope of application is very wide. You can use raw water pump for the deployment through the valve, easy and convenient.