Sludge enhancers play a key role in the deep dewatering treatment of municipal sludge. The following is a detailed analysis of its deep dehydration treatment:
Principle of action of sludge synergist
Sludge enhancer achieves deep dewatering of sludge mainly through the following principles:
Damage the colloidal structure of the sludge: the specific components of the sludge synergist can destroy the colloidal structure of the sludge, so that the binding force between the sludge particles is weakened, so that it is easier to separate and dehydrate.
Reduce sludge viscosity: Through chemical action, sludge synergists can reduce the viscosity of the sludge, making it easier to flow and dehydrate in the dewatering equipment.
Promote water separation: Some components of the sludge enhancers can combine with water molecules in the sludge to form a gel-like substance, which can quickly separate water out.
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 deep dehydration of sludge.
Improve dewatering efficiency: After the use of sludge synergist, the dewatering efficiency of sludge is significantly improved, and the dewatering time is shortened, thus reducing the operating time and energy consumption of dewatering equipment.
Improve sludge properties: sludge synergists can not only reduce the moisture content of the sludge, but also improve the stability, workability and subsequent utilization of the sludge.
Third, the combination of sludge synergist and dewatering equipment
In practical applications, sludge enhancers are usually used in combination with various dewatering equipment (such as plate and frame filter press, belt filter press, centrifugal dehydrator, etc.). These devices, by applying mechanical forces, make it easier for the sludge to dehydrate under the action of a synergist. At the same time, the synergist can also reduce the wear and blockage of the sludge on the dewatering equipment and extend the service life of the equipment.
Four, municipal sludge deep dehydration treatment technology
Municipal sludge deep dewatering treatment process usually includes the following steps:
Sludge pretreatment: According to the nature of the sludge and treatment requirements, choose the appropriate pretreatment methods and equipment, such as adjusting the pH value of the sludge, adding coagulants and so on.
Mixing and precipitation: the pre-treated sludge is evenly mixed with the sludge synergist, and then precipitated under appropriate conditions, so that the sludge particles settle and remove part of the water.
Press dehydration: the sludge after precipitation is sent to the dewatering equipment for press dehydration to further remove the water in the sludge.
Follow-up treatment: follow-up treatment of the dehydrated sludge, such as drying, incineration, composting, etc., in order to achieve the resource utilization or harmless treatment of the sludge.
Five, precautions
Select the right sludge synergist: according to the nature of the sludge, treatment requirements and cost and other factors, choose the right sludge synergist.
Control dosage: The dosage of sludge enhancer should be adjusted according to the nature of the sludge, the performance of the treatment equipment and the expected treatment effect. Too much or too little dosage may affect the treatment effect and economy.
Monitoring and treatment effect: the dewatering effect and moisture content of the sludge should be regularly monitored during use to ensure the effectiveness of the sludge synergist. At the same time, the quality of the treated sludge should also be tested to ensure that it meets the environmental requirements.
In summary, sludge synergists play an important role in the deep dewatering treatment of municipal sludge. Through reasonable selection and use of sludge enhancer, combined with appropriate dewatering equipment and treatment technology, sludge can be treated efficiently and environmentally.