The mud cake formed after the deep dehydration of sludge has a variety of uses, the following are some common uses:
Soil improvement: Mud cake contains rich organic matter and nutrient elements, which can be used as fertilizer to improve soil structure, improve soil fertility, and promote plant growth.
Building materials utilization: Mud cake after further processing, can produce a variety of building materials, such as pottery, brick, cement and so on. These building materials have the advantages of light weight, high strength, durability, etc., and can be widely used in the construction field.
Landfill covering material: mud cake has good impermeability and compactability, and can be used as a landfill covering material to reduce the penetration and diffusion of pollutants.
Chemical raw materials: mud cake contains rich inorganic substances and organic matter, can be used as raw materials for the production of various chemical products, such as sugar, paper, alkali and so on.
Agricultural utilization: Although the mud cake in industrial sludge may contain toxic substances such as heavy metals and is not suitable for direct use in agriculture, the mud cake after domestic sludge treatment can be used as organic fertilizer, soil amendment, animal feed, etc., to promote the development of agricultural production and aquaculture.
Organic soil manufacturing: the mud cake can be used as organic soil after dehydration, which not only solves the problem of mud route, but also provides a carrier for plant growth. However, it should be noted that because industrial mud may contain toxic substances such as heavy metals, even if the treated mud is not suitable for direct agricultural use, so it is often chosen to use domestic mud as municipal greening and flower base to cultivate plants.
Heat source: Mud cake has a high heat, so it can also be used as fuel. For example, mud cake formed after deep dehydration of mud can be fed into a fluidized bed for use, or mixed with treated mud and light oil.
The above are the common uses of mud cake after sludge deep dehydration, with the continuous progress of science and technology and the expansion of application fields, the use of mud cake will be more extensive, and make positive contributions to human development and environmental protection.