Xiaobian take you to understand how to improve the dehydration of industrial sludge in paper mills! With the development of papermaking industry in China, the sludge from papermaking wastewater treatment is also a new kind of pollution. Paper sludge mainly comes from primary sedimentation tank and biochemical tank. Most of the paper sludge is composed of cellulose organic matter, nitrogen, phosphorus, potassium and other plant nutrients, and contains a certain amount of trace heavy metals and pathogenic bacteria. According to the characteristics of the sludge containing plant nutrients, the sludge can be processed into organic fertilizer. We all know that sludge contains a lot of water, so how to effectively remove the water in the sludge?

The paper industry generally adopts the method of filter press to remove the water in the sludge. After sludge concentration, before entering the mechanical dehydration, it is necessary to add chemical agents to the sludge for treatment. Due to the different papermaking process, the amount of chemicals is also different. Inorganic flocculants polyaluminum chloride, ferrous sulfate and organic flocculant polyacrylamide are usually added. Sludge dewatering agent has good sludge dewatering effect and is an organic flocculating polymer sludge conditioner. Due to the use of sludge dewatering agent to form large flocculants, the press filtration process produces a lot of water, and the water content of the extruded mud cake is low. The moisture content of the mud cake can reach about 75%, which is convenient for post-processing. After the mud cake is obtained, it is further processed into organic fertilizer to realize the transformation of waste into treasure.

Sludge dewatering agent features:

1. the use of economic, the amount is very small, good effect;

2. can significantly improve the production efficiency or increase the solid content of mud cake;

3. easy to dissolve in water;

4. in the production process of solid-liquid separation, can improve the capture rate of solids;

5. effective work in a wide pH range.

Application range of sludge dewatering agent:

1. For sludge dewatering, the corresponding model of this product can be selected according to the nature of the sludge. The sludge can be effectively dewatered before entering the filter press, resulting in large flocculent during dewatering, non-stick filter cloth, no scattering during filtration, thick mud cake, high dewatering efficiency, and the mud cake moisture content is lower than 80%.

2. for the treatment of domestic sewage and organic wastewater. This product is positively charged in acidic or alkaline medium, so that the negatively charged sewage with suspended particles in the sewage flocculation precipitation, the clarification effect is very good. Such as the production of grain alcohol wastewater, papermaking wastewater, urban sewage treatment plant wastewater, brewery wastewater, monosodium glutamate wastewater, sugar wastewater, high organic wastewater, feed wastewater, textile printing and dyeing wastewater. It is several times or tens of times higher than anionic, non-ionic polymer acrylamide or inorganic salts, because such wastewater is generally negatively charged.

3. the flocculant used for the treatment of tap water with river water as the source, the amount is small, the effect is good, the cost is low, especially the use of inorganic flocculant is better. Highly effective flocculant for plants.

4. Papermaking enhancers and other auxiliaries. Improve the retention rate of fillers, pigments, etc., improve the strength of paper.

5. used in oil field economic additives, such as clay anti-swelling agent, oilfield acidification thickening agent, etc.

6. used as textile sizing agent, stable sizing performance, small sizing amount, low fracture rate, smooth cloth.