Urban wastewater typically contains high levels of organic pollutants, suspended solids (SS), and negatively charged particles. Cationic polyacrylamide is particularly effective because:

• It has a high molecular weight (8-12 million), ensuring strong flocculation and sedimentation.
• It works well in both acidic and alkaline conditions, making it versatile for various wastewater types.
• It is compatible with other coagulants like PAC, enhancing overall treatment performance.

Common CPAM Specifications for Urban Wastewater:

• Ionic Degree: 40% or 50% (most effective for sludge dewatering).
• Appearance: White powder or granules.
• Solubility: Soluble in water, methanol, and ethanol; insoluble in ketones and hydrocarbons.

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