The residual sludge in flowing sewage is different. Due to the different content of different components in the treatment process, the sludge treatment and disposal should have its own specific methods.

Composition and classification of paper sludge: A large amount of sediment is produced during the treatment of paper-making wastewater. The sediment is called biological sludge and is generally classified into fine fiber, lignin and its derivatives and some organic substances. The alkali-recovered white mud from the white mud recovery section of the alkali recovery unit is a product of causticization and precipitation of calcium carbonate, which is mainly produced in pulp and paper mills. The deinking sludge is produced in the deinking process of the waste paper. The composition of the deinking sludge is complicated, among which are mainly cellulose fibers and base paper fillers and coatings.In addition, there are also some short fibers, coarse slag and ink particles.

Over the years, we have been focusing on sludge drying technology against the toxic and harmful sludge during industrial production by combining with the actual situation in different fields and  summarizing the traditional treatment methods have developed a paper sludge dryer.

Equipment advantages:

1. The drying system can be equipped with a flexible heat source device;

2. Compact structure, small area occupied, low thermal conductivity and high thermal efficiency, which can reach 80%-90%. It is an energy saving device.

3. The equipment configuration is flexible, and the production line can be matched with drying, cooling, gas circulation, reaction and heating system to achieve good drying effect.

4. It has strong adaptability to raw materials and flexible operation, and can adjust the retention time of raw materials.

5. The auxiliary equipment is simple, the investment cost is low, the running cost is low, and the available exhaust gas can be used to accelerate the drying efficiency.

6. According to different properties of sludge, it can be adjusted according to the actual situation.

7. High degree of automation, the operator can monitor the production process in real time.