The sludge in the thickening tank is transported to the conditioning tank through the sludge pump. In the conditioning tank, the sludge conditioner is added to condition the sludge to reduce the specific resistance of the sludge and improve the sludge dewatering performance. The conditioned sludge is transported to the high-pressure diaphragm filter press through the screw pump for dewatering, and the mud cake with a moisture content of less than 40% is formed, which effectively realizes the deep drying and dewatering of the sludge. The mud cake is not smelly, and the clear and transparent supernatant can be returned directly to the water plant, which is very convenient and energy-saving.
So what sludge dewatering agents can effectively reduce the moisture content of the sludge, make the sludge deep dewatering, and save operating costs? Sludge conditioner is a good choice, sludge conditioner, also known as sludge dehydrating agent, sludge conditioner, is a chemical agent that can change the surface structure of the sludge, reduce the solid surface load of the sludge, reduce the specific surface area of the sludge surface, and destroy the bacterial structure. The main components are inorganic compounds, sludge surface structure modifier, degreaser, wall breaking agent, sludge surface treatment agent, sludge stripping agent and so on.
Advantages of sludge conditioner compared with traditional dewatering agents:
1. It can effectively reduce the moisture content of the sludge and dehydrate the sludge.
2. The moisture content of the sludge can be reduced to 35%-55%, and the sludge weight reduction effect is good.
3. Improve the mud press efficiency of plate and frame filter press 100%-500%, greatly shortening the mud press cycle.
4. The addition amount is small, there is no need to add lime, there is no chloride ion in the sludge conditioner, and there is no corrosion to the dewatering equipment.
5. Deep dewatering of sludge is conducive to subsequent incineration of sludge, brick making, composting, etc.
6. Sludge deep dehydration, non-stick filter cloth, reduce the frequency of dewatering equipment filter cloth replacement, save operating costs.