Sludge enhancers do show a strong ability in municipal sludge treatment, especially in solving the problem of high sludge moisture content. The following is a detailed analysis of how to "handle" municipal sludge and solve the problem of high moisture content:
One. Mechanism of action of sludge synergists
Change the surface properties of the sludge particles: the sludge synergist can change the surface properties of the sludge particles, such as charge distribution and hydrophobicity, so that the accumulation and precipitation between the sludge particles are more likely to occur, thereby reducing the free water content in the sludge.
Damage the colloidal structure of sludge and microbial cells: sludge synergists can destroy the colloidal structure and microbial cell structure in the sludge, and release the bound water in the cell, which is often difficult to remove in the conventional dehydration process.
Form a more stable bond: Sludge synergists can form a more stable bond with water molecules in the sludge, reducing the freedom of water molecules and helping to separate more water from the sludge during the dehydration process.
Two. Application effect of sludge synergist
Significantly reduce the moisture content of sludge: sludge enhancer can significantly reduce the moisture content of sludge, usually from more than 90% to 40%~60%, to achieve the reduction of sludge treatment.
Improve dewatering efficiency: sludge synergists can significantly improve the dewatering efficiency of sludge, shorten the dewatering time, and reduce the running time and energy consumption of dewatering equipment.
Reduce treatment costs: Because the sludge synergist can improve the fluidity of the sludge and reduce the wear and blockage of the sludge on the dewatering equipment, the maintenance cost of the equipment can be reduced. At the same time, the water content of the dehydrated sludge is reduced, and the volume is reduced, which is convenient for subsequent transportation, storage and disposal, thus reducing the burden of subsequent treatment.
Three. The combination of sludge synergist and mechanical dewatering equipment
In practical applications, sludge enhancers are usually used in combination with mechanical dewatering equipment (such as plate and frame filter presses, belt filter presses, 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.
Four, precautions
Select the right sludge enhancer: Select the right sludge enhancer according to the nature of the sludge and treatment requirements. Different sludge synergists have different chemical composition and mechanism of action, so it is necessary to choose according to the specific situation.
Control dosage: The dosage of sludge enhancer should be adjusted according to the nature of the sludge and the performance of the treatment equipment. Too much or too little dosage may affect the treatment effect and economy.
Monitoring treatment effect: In the process of use, the dewatering effect and water content of the sludge should be regularly monitored to ensure the effectiveness of the sludge synergist.
Pay attention to environmental protection requirements: when selecting and using sludge enhancers, relevant environmental regulations and standards should be complied with to ensure that the treated sludge meets environmental protection requirements.
In summary, sludge enhancers have shown a strong ability in municipal sludge treatment, especially in solving the problem of high sludge moisture content. Reasonable selection and use of sludge enhancers can significantly improve the dewatering efficiency and treatment effect of sludge, and contribute to environmental protection and resource recovery.