The wastewater generated by pharmaceutical companies causes serious pollution to water bodies due to the fact that most of its pollutants are complex, toxic, harmful, and difficult to degrade organic substances. At the same time, industrial wastewater also exhibits obvious acidity and alkalinity, and some wastewater contains excessive salt content. These characteristics make pharmaceutical wastewater a difficult type of wastewater to treat in the water treatment industry.

At present, the pharmaceutical industry mainly uses physical and chemical methods to reduce the pollutant content in wastewater, and then discharges the wastewater into the pipeline network after reaching the standard through biochemical treatment. The sludge in the pharmaceutical industry is mainly composed of physical and chemical sludge (usually accounting for more than 60% of the dry sludge). This type of sludge generally has high viscosity, high specific gravity, and small particles. Therefore, conventional solid-liquid separation equipment is difficult to treat it. The sludge treatment equipment, the stacked screw sludge dewatering machine, which is a key focus of research and development and promotion by Welp Environmental Protection, has been optimized and designed according to the characteristics of sludge in the pharmaceutical industry

1) Innovatively developing a new type of inorganic material specific spiral shaft, by adjusting the spacing between the spiral shaft and impeller, reducing the dead zone between the shaft and impeller, etc., the pressure inside the dehydration chamber is increased more smoothly, thereby alleviating the problem of sludge blockage in the pharmaceutical industry;

2) Adopting a new type of ring configuration to reduce the gap between the rings and ensure that the majority of the flocculated flocs are trapped in the chamber, achieving solid-liquid separation without blocking the shaft;

3) According to the different wastewater treatment processes used in the pharmaceutical industry (such as coagulation, membrane separation, air flotation, etc.), the flocculation reaction time of the stacked screw sludge dewatering machine can be flexibly adjusted to ensure that the sludge entering the dewatering body is in the best flocculation state;

4) We have adopted a fully sealed design to address the significant harm caused by pharmaceutical sludge, resulting in a cleaner on-site environment. Equipped with a pneumatic spring observation window, the internal operating status of the machine can be observed;

After a series of optimized designs, the stacked screw sludge dewatering machine from Welp Environmental Protection has effectively solved the problem of difficult sludge treatment in the pharmaceutical industry and found a new direction for sludge treatment in the pharmaceutical industry.

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