Poor effluent effect of activated carbon (such as residual chlorine in effluent, etc.)

High turbidity of activated carbon inlet water

Reduce the influent turbidity of activated carbon

Insufficient and incomplete backwashing strength

Strengthen backwashing, adjust water pressure and flow rate

The backwash cycle is too long

Shorten the backwash cycle

The quality of raw water has deteriorated

Master the cycle of water quality changes and improve the treatment process

The height of the filter layer is too low

Appropriately increase the height of the filter layer

Poor quality of filter material and poor adsorption capacity

Replace the filter material and use higher quality filter material

Run filter material, leak filter material

Excessive backwashing intensity

Reduce backwash intensity

Damaged water collector or low uniformity of filter material

Replace the water collector or replace the appropriate filter material

Filter flow reduction

Excessive resistance in the inlet pipeline or drainage system

Replace the pipeline or thoroughly backwash the filter material

Severe growth of algae and aquatic organisms in the filter layer

Enhance the sterilization intensity of raw water and conduct regular steam sterilization

Filter material clumping

Increase backwash intensity or replace filter material

The effluent contains activated carbon powder

The filter material was not cleaned thoroughly before being put into operation

Thoroughly rinse the filter material until the water quality is qualified

Poor quality of filter material

Replace the filter material

The filter material is oxidized or decomposed

Replace or supplement filter media or reduce the content of oxidizing substances in raw water

After running the filter for a period of time, the residual chlorine exceeds the standard

Saturation of adsorption capacity of activated carbon

Replace high-quality activated carbon

Poor inlet water quality causes aging of activated carbon

Improve the quality of activated carbon inlet water

There are many bacteria in the effluent of activated carbon

There are many algae and aquatic organisms in the raw water or they breed severely on the surface of the filter layer

Enhance the sterilization intensity of raw water and develop a reasonable steam sterilization cycle based on seasonal conditions

Poor steam sterilization effect

Insufficient steam sterilization temperature, maintain sufficient sterilization time