what's the usage of dried sludge
Add Time : 2022-06-17
Wet sludge generally has high water content, complex composition, strong viscosity, and contains a variety of bacteria, pathogenic microorganisms and other harmful substances. Therefore, the sludge dryer is required to dispose the sludge. On the one hand, the moisture in the sludge should be removed to reduce the moisture content, making it easier to transport or store, and on the other hand, it should kill the bacteria and germs and other harmful substances in the sludge to reduce the pollution to the environment, and increase the value of sludge resource utilization. After drying of sludge, the volume and weight reduction is remarkable, and the dried sludge can be mainly used in the following aspects.
1. Incineration
The heat value of the dried sludge is greatly improved, and a certain proportion of coal can be mixed with the dried sludge for combustion in the boiler, which not only saves coal resources, but also generates a large amount of heat energy, which can be used for power generation or heat supply in power plants.
2. Brick Making
The dried sludge processed by the sludge dryer is one of the raw materials for making environmentally friendly bricks. The strength of brick, which made of dried sludge and clay mixed in proportion, is equivalent to that of ordinary red bricks. And it has a certain calorific value, heat can be increased during the brick making process.
3. Making Ceramsite from Sludge
Dried sludge is widely used in the field of building materials. In addition to brick making, it can also be used to make ceramsite. In the past, the production of ceramsite was inseparable from clay, and the exploitation of clay would cause the damage to land and ecological environment. Therefore, it is a reasonable resource utilization to further process the sludge into ceramsite after drying and incineration.
4.Dried sludge used to making fiber board and as cement additive
After heating, drying and pressurization, a series of physical and chemical changes occurred. The dried sludge can be made into activated sludge resin, which can be used for fiber bonding and pressing plates. Moreover, dried sludge can also be used as cement additive to change the characteristics of cement.
sludge dryer site
Zhengzhou Dongding, as a professional manufacturer of rotary dryer system, has more than 500 drying cases, and received unanimous praise from customers at home and abroad.
We can design the plan according to the demands of customers, and provide a variety of heat sources for use, in order to meet the environmental standards.
Please contact us when you need a dryer equipment, We will provide you with a professional drying plan in the shortest time at a reasonable price.
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