Product Description:

Printing and dyeing factory special polyacrylamide is a composite high molecular polymer. It can effectively clarify the coal washing water, make the fine particles in the water quickly agglomerate and settle, and improve the recovery of peat, so as to save water and prevent pollution. The problem of sludge disposal produced by printing and dyeing wastewater makes manufacturers have a headache. Printing and dyeing sludge is generally high in inert substances. For example, the sludge produced by Denim and clothing washing and bleaching wastewater has a high sand content, while the content of organic matter and pathogenic bacteria is low, and the calorific value is low. Generally, the content of heavy metals is high (compared with the sludge produced by urban domestic sewage). As the printing and dyeing industry itself due to the use of raw materials, product varieties, product processing methods and other different sludge components are not the same, the use of sulfur dyes enterprises, the content of sulfide is bound to be higher. Therefore, the selection and dosage of printing and dyeing sludge treatment should be treated differently according to the different sources of sludge, starting from the aspects of sewage treatment scale, sludge yield, pharmaceutical source, pharmaceutical dosage, operating cost, moisture content of mud cake, etc., according to local conditions, comprehensive consideration.

Technical indicators:

Specific use:

Printing and dyeing factory special polyacrylamide has hygroscopicity, flocculation, adhesion, resistance reduction, thickening, and good stability. The molecules of the product can bridge adsorption with suspended particles dispersed in the solution, and has a strong flocculation effect. The company's polyacrylamide products are divided into: anionic, cationic, different molecular weight different ionic degree of four series of products. At present, domestic printing and dyeing factories are limited by their scale, and the amount of waste water is generally less than 100000 cubic meters per day. It is not advisable to use large areas of land for natural drying or to set up incinerators and other facilities, especially in Jiangsu and Zhejiang regions, where the rainy and humid climate drying field is useless. Generally, some small-scale sewage treatment plants carry out treatment. Sludge can be preliminarily conditioned and squeezed. A large number of flocculants are used as sludge dewatering agents in the dehydration process. Many flocculants are used for sludge treatment, including aluminum sulfate, ferric chloride, ferrous sulfate, polyaluminum chloride, polyaluminum sulfate, polyacrylamide, etc. All kinds of agents have their application scope, advantages and disadvantages.

Method of use:

1, when using, with a concentration of 0.01 to 0.03% of the aqueous solution, to use neutral water without salt debris is appropriate.

2. When dissolving, evenly sprinkle the special polyacrylamide product of the printing and dyeing factory into the stirring water, and the stirring speed is controlled at 100~300rpm. Appropriate warming (< 60°C) can accelerate dissolution.

3. Adjust the PH value of the treated liquid to make this series of products play a full role (select the best PH value and the dosage of this series of products through experiments.)

4. When adding the special polyacrylamide product solution of the printing and dyeing factory, the mixing with the treated liquid should be accelerated. After the flocculate appears, the stirring speed should be slowed down to facilitate the growth of the flocculate and accelerate the settlement.

Note:

1. Dissolution temperature. The dissolution of polyacrylamide for printing and dyeing plants requires a certain temperature to speed up the dissolution. However, if the temperature is too high, the molecular chain of the polymer will be broken and the use effect will be reduced. The more suitable dissolution temperature is 50-60 ℃.

2. Stirring conditions. The dissolution of polyacrylamide should avoid too strong shear force stirring, too strong stirring will break the molecular chain, thereby reducing the use effect. Mixing should adopt low-speed blade, such as anchor type, frame type, multi-layer slurry type, etc. The stirring speed is about 60 r/min. Transport should also avoid the use of high-speed centrifugal pump, more suitable for the use of piston pump or diaphragm pump.

3. Uniform dispersion feeding. The key link of polyacrylamide dissolution is the uniform dispersion of the feed. After the mixer is started, it is best to use mechanical vibration screen feeding (screen mesh number is 10 mesh), try to avoid the production of "large mass", "fish eye" insoluble particles, so that polyacrylamide can be fully dissolved, play a good use effect.

4, avoid and iron solution. In the dissolving, stirring and conveying dosing system, it is best to use plastic, enamel, aluminum, stainless steel and other materials.

Packaging and storage:

25 kg/bag (plastic kraft paper bag lined with plastic bag).

This product is non-toxic, pay attention to moisture, rain, avoid sun exposure.