Industrial wastewater treatment process refers to the process of removing or converting pollutants in industrial wastewater into harmless substances. Commonly used industrial wastewater treatment processes include physical, chemical and biological methods.
Polyacrylamide (PAM) plays an important role in industrial wastewater treatment and can be applied to various treatment links to improve treatment effects.
1. Pretreatment
Pretreatment is the first step in industrial wastewater treatment. Its main purpose is to remove large particle impurities such as suspended matter and grease in wastewater. PAM is mainly used for flocculation and sedimentation in pretreatment, which can flocculate fine particles in wastewater into larger particles, making them easier to precipitate and separate.
2. Primary treatment
Primary treatment is the second process of industrial wastewater treatment, and its main purpose is to remove most of the suspended solids and organic matter in the wastewater. PAM is mainly used for coagulation and sedimentation in primary treatment, which can improve the flocculation effect of flocculants and accelerate the sedimentation rate.
3. Intermediate treatment
Intermediate treatment is the third process of industrial wastewater treatment, and its main purpose is to remove some soluble organic matter, heavy metals and other pollutants in the wastewater. PAM is mainly used for sludge dewatering in intermediate treatment, which can improve the dewatering efficiency of sludge and reduce the water content of sludge.
4. Deep treatment
Deep treatment is the fourth process of industrial wastewater treatment, and its main purpose is to remove pollutants such as refractory organic matter, nitrogen and phosphorus in wastewater. PAM is mainly used for filtration in deep treatment, which can improve the interception capacity of the filter tank and reduce the concentration of pollutants in the effluent.
Advantages of PAM in industrial wastewater treatment process
Small dosage, significant effect: PAM can play a significant role in flocculation, coagulation and filtration with a small dosage.
Wide sources and low prices: PAM has a wide range of raw materials and low prices, making it an economical and affordable additive.
Non-toxic, odorless, and pollution-free: PAM is a non-toxic, odorless, and pollution-free environmentally friendly material.
Good compatibility with other additives: PAM can be used in conjunction with other additives to improve the treatment effect.
Precautions for selecting PAM
Viscosity of PAM: The higher the viscosity of PAM, the stronger the flocculation ability, but the worse the solubility. The appropriate viscosity should be selected according to the water quality and treatment process of the wastewater.
Degree of substitution of PAM: The higher the degree of substitution of PAM, the better the hydrophilicity and solubility. The appropriate degree of substitution should be selected according to the pH value and salinity of the wastewater.
Purity of PAM: The higher the purity of PAM, the less impurities it contains and the less impact it has on water quality. The appropriate purity should be selected according to the treatment requirements.
In the specific application scenarios of PAM water treatment, there will be different solutions and different PAM product models will be needed. For more detailed PAM product introduction and industrial wastewater treatment solutions, please contact our business personnel for answers. Contact email: info@welldonechina.com
