In the papermaking industry, sludge treatment has always been a headache-inducing problem. However, the emergence of sludge enhancer technology has brought new hope for the deep dewatering of papermaking sludge.

The predicament of papermaking sludge dewatering

The sludge produced in the papermaking process is characterized by high moisture content, large volume and complex composition. Traditional dewatering methods often fail to achieve the desired dewatering effect, resulting in high costs for subsequent sludge treatment and potentially causing secondary pollution to the environment. For instance, the natural drying method adopted by some paper mills not only takes up a large area and has a long processing cycle, but is also severely affected by weather conditions, thus failing to meet the demands of large-scale and efficient processing.

The working principle of sludge efficiency enhancer technology

The sludge enhancer technology mainly improves the physical and chemical properties of sludge by adding sludge enhancers, thereby enhancing the dewatering efficiency. Sludge enhancers can disrupt the structure of microbial cells in sludge, release the water within the cells, and simultaneously alter the charge properties on the surface of sludge particles, reducing the repulsive force between sludge particles. This makes it easier for sludge particles to aggregate and form larger flocs, facilitating water separation.

The practical application effect is remarkable

Take a large-scale paper mill as an example. Before introducing the sludge efficiency enhancer, the moisture content of the sludge was as high as over 90%. Even after being treated by traditional dewatering equipment, the moisture content remained at around 75% to 80%. The volume of the treated sludge was large, and the transportation and landfill costs were high. By adding sludge enhancers in a certain proportion and undergoing dewatering treatment, the moisture content of the sludge can be reduced to below 60%, the volume of the sludge can be significantly decreased, and the transportation and landfill costs can be notably lowered. Meanwhile, the calorific value of the dehydrated sludge increases and it can be used as fuel for incineration treatment, thus achieving the resource utilization of sludge.

The advantages of sludge efficiency enhancer technology

The sludge enhancer is easy to operate. It only needs to be added in proportion during the sludge treatment process. Moreover, the cost is relatively low and will not impose excessive economic burdens on enterprises. Compared with some complex sludge treatment technologies and equipment, sludge enhancers have a higher cost performance.

Sludge enhancers provide a reliable and efficient method for the deep dewatering of papermaking sludge, which helps papermaking enterprises achieve sludge reduction, harmlessness and resource utilization, and promotes the green development of the industry.