What are the common filtration processes of domestic sewage treatment equipment

At present, according to the nature of the filter material can be divided into the following three main forms:

1, the traditional natural materials: such as quartz sand, anthracite, shells, etc., quartz sand is a professional filter material more widely used in domestic sewage treatment equipment.

2, synthetic materials: the main synthetic filter media currently used are polystyrene filter beads, PVC beads, polypropylene beads and so on.

3. Fiber filtration: fiber filtration in domestic wastewater treatment equipment, is the use of a new type of fiber bundles or fiber balls as a filter unit. Domestic wastewater treatment removes organic pollutants and ammonia and nitrogen components, mainly relying on the AO biological treatment process in the wastewater equipment. Domestic wastewater treatment equipment works in A class. So when the sewage organic concentration is relatively high, the microorganisms as a whole are in a state of anoxia, at this time the microorganisms are parthenogenetic microorganisms, so the A-level pool also has a certain function of organic matter removal.