At present, the dewatering treatment of sludge is a method used by many industries, and a thing called sludge dewatering agent is bound to be used in this process. Sludge dehydrating agent is mainly used in the activated sludge treatment of urban and industrial sewage, which is widely used. So what are the sludge dehydrating agents (sludge conditioners) on the market?

1. polyacrylamide, also known as flocculant. It seems to be a white small particles or powdered solids, and this agent has a better effect, so it is a commonly used sludge dehydrating agent. Polyacrylamide is a high molecular weight polymer, and it is also divided into anionic, cationic, non-ionic and other types, so when choosing, you need to do several tests to determine the model.

2. polyaluminum chloride, also known as water purification agent. The appearance is yellow particles or powder. It is more common in coal washing plants or sand washing fields, and the sewage concentration is not high, and the belt filter press can be used to dehydrate the equipment. In the selection of polyaluminum chloride, the positive source plate frame filter grade polyaluminum chloride is generally used, and the 30 content can be better completed.

3. sludge dehydrating agent 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. Combined with the plate and frame mud press, the sludge moisture content can be reduced from more than 90% to 40%-60%, and the sludge reduction can be fully realized.

4. others, such as ferric chloride, polyferric sulfate, aluminum sulfate, lime, polyferric aluminum chloride, etc., its main role is to flocculate and precipitate the sludge in the sewage, so as to enter the dehydration equipment to achieve the purpose of sludge dehydration.

In industrial production, the sludge dewatering agent selected by different industries, different dewatering equipment and different sewage concentration is not the same. Combined with the actual situation to choose the appropriate effect is better. It is recommended here that the sludge dehydrating agent, the moisture content after dehydration is low, and the effect is relatively good.