While the paper industry brings huge economic benefits, it also produces a large amount of sludge. These sludge not only contains a lot of water, but also rich in organic matter and microorganisms, improper treatment will cause serious pollution to the environment. Therefore, how to efficiently and environmentally friendly treatment of paper sludge has become the focus of the industry. As a new chemical agent, sludge enhancer plays an increasingly important role in the treatment of papermaking sludge.

Mechanism of action of sludge synergists

Sludge enhancer is a chemical agent specially used to improve the dewatering performance of sludge, its composition is complex, usually contains inorganic compounds, sludge surface structure modifier, degreaser, wall breaking agent, sludge surface treatment agent, sludge stripping agent and so on. These components work together to change the surface structure and properties of the sludge to achieve a better dewatering effect.

Specifically, sludge synergists can work through the following mechanisms:

Damage the colloidal structure of the sludge: the sludge synergist can destroy the colloidal structure of the sludge, so that the sludge particles are easier to separate and dehydrate.

Reduce sludge viscosity: By reducing the viscosity of the sludge, the sludge synergist can make it easier to remove water from the sludge in equipment such as filter presses or centrifuges.

Increase sludge solid content: After the use of sludge synergist, the solid particles in the sludge are more likely to gather together, thereby increasing the solid content of the sludge and reducing the water content.

Application of sludge enhancer in paper making sludge treatment

In the treatment of papermaking sludge, sludge enhancers are usually used in combination with mechanical dewatering equipment (such as plate and frame filter press, belt filter press, etc.). Under the action of mechanical force, the sludge synergist is fully mixed with the sludge and plays a role, making the sludge particles more closely combined to form a sludge cake that is easier to dehydrate. This can not only improve the dehydration efficiency, but also shorten the dehydration cycle and reduce the treatment cost.

For example, studies have shown that after the use of sludge synergists, the dehydration efficiency of paper sludge can be significantly improved, and the water content of the dehydrated mud cake can be reduced from more than 80% to less than 60%. This not only reduces the volume of the sludge, but also reduces the cost of subsequent transportation and disposal.

 

Advantages of sludge synergists

Compared with traditional water treatment agents, sludge synergists have the following significant advantages:

The effect is significant: the sludge synergist can greatly reduce the moisture content of the sludge and achieve the reduction of the sludge treatment.

Easy operation: The use of sludge enhancer is relatively simple, and only needs to be added to the sludge in a certain proportion, without complex pretreatment steps.

Environmental protection and safety: sludge synergists usually do not contain substances harmful to the human body and the environment, and will not produce secondary pollution after use.

Economical and efficient: Although the cost of sludge enhancer may be slightly higher than that of traditional water treatment agent, due to its remarkable dewatering effect, it can significantly reduce the cost of subsequent treatment, so the overall economic benefit is higher.