The sewage of food factories contains a lot of organic matter, and cationic polyacrylamide flocculants are generally used to treat this type of wastewater with better effect.If secondary biochemical treatment is carried out on site, anionic pam is used; cationic flocculants are used in the sludge dewatering section.When choosing polyacrylamide flocculant pam for food factories, the molecular weight and ionicity of polyacrylamide pam need to be considered, and then the best model is determined through tests.When food factories use polyacrylamide flocculant pam to treat sewage, they should consider the source nature of the sludge, the size of the flocculation, the ionization of polyacrylamide pam, the strength of the flocculation and other factors.Understanding the source, nature, composition and solid content of sewage in food plants, it is possible to initially determine what ionic flocculant pam is used.According to the requirements of the on-site treatment technology, it is better to judge whether the flocculation is larger or smaller, because the flocculation is too small will affect the drainage speed, and too large will cause the flocculation to bind more water and reduce the mudiness.The size of the flocculant can be adjusted by selecting polyacrylamide, a flocculant of different molecular weights.Then, according to the filter press used in the sludge dewatering of the food factory, the flocculant pam of different ionic degrees is selected, and the selection test needs to be carried out in the laboratory to select the model with the flocculation group that is relatively firm, stable and not easy to break.

In short, the wastewater treatment of food plants needs to go through strict beaker tests, and the best model can be selected to obtain a better solid-liquid separation effect and a better sludge dewatering effect.For the treatment of wastewater in food plants, Suzhou Haonuo has accumulated a lot of experience in the selection and use of polyacrylamide flocculants. According to the specific requirements of food plants, different on-site processes and equipment can be used to select matching flocculant products; select the most suitable and cost-effective polyacrylamide flocculant products for food plants, and find the most suitable solution for the sewage plant to which they belong.