Dicyandiamide-formaldehyde polymer and its modified product application

[Application] (1) Application in sludge dewatering

Jiang Xiaojun and Xiao Jin used dicyandiamide-formaldehyde polycondensate to treat the remaining activated sludge of a certain plant in Guangzhou, and compared the dehydration performance with aluminum trichloride and cationic polyacrylamide.

(2) Treatment of printing and dyeing wastewater

Lin Feng and Shao Qing used dicyandiamide formaldehyde polymer to treat printing, dyeing and bleaching wastewater, that is, 1000mL of printing and bleaching wastewater was put into a 1000mL beaker, and 10mL of 10% dicyandiamide formaldehyde polymer aqueous solution was added, and a large amount of flocs were formed After fully stirring, let it stand for 10 minutes and then filter.

Dong Yinmao and Liang Yingzhou used their self-developed dicyandiamide - formaldehyde series cationic polymer to treat the wastewater from the general drainage outlet of Beijing No.

Table 3-23 Printing and dyeing wastewater treatment results

Related links: Preparation method of dicyandiamide-formaldehyde polymer and its modified products (2)