Polymer Preparation System

Polymer Preparation System is a compact automated metering unit for liquid or powder polymer preparation and dosing. Designed specifically for uniformity of flocculant concentration, the design is optimized to ensure that the polymer completes the maturation process with minimal footprint. Also often referred to as powder dosing systems, polymer dosing systems, PAM PAC dosing systems.

The pre-assembled polymer unit features two cylindrical chambers for dosing, maturation and storage of liquid or powdered polymer solutions, which are hydraulically coupled via overflow channels. In addition, two motorized stirrers provide agitation to ensure consistent performance.

KUOSI offers calibration of the powder dosing unit and concentrate pumps, and the system can be customized for HAOSH’s wide range of dosing pumps for market-leading flexibility.

How does polymer preparation system work?

For solids separation in water treatment applications where effective coalescence and flocculation are required prior to dosing, this dosing system can be used for batch flocculation aids to prepare ready-to-use polymer solutions and is designed for fully automated dosing of polymer solutions.

The baffles allow the polymer formulation to circulate through a series of compartments. This ensures optimal reaction times and continuous concentration levels in each compartment, thus avoiding any preferential routes between the preparation compartment and the final dosing solution compartment.

Automation is achieved by a control panel connected to an ultrasonic level detector located above the dosing solution compartment. Once the solution in the dosing chamber reaches “low level”, the detector activates the opening of the inlet motorized valve and the activation of the dry feeder. The water meter continuously controls the flow rate. Once a “high level” is reached, the process cycle stops.

Standard engineering drawing of a polymer preparation system
Standard engineering drawing of a polymer preparation system


  • Fully automated operation — saves labor costs and prevents dosing errors, operation stops
  • Standardization of the resulting polymer — concentration, maturation time, homogeneity
  • High efficiency mixer — Provides low flow mixing for homogeneous flocculant polymerization without mechanical degradation
  • Optimized process — visual access to process and alarms, can feed the process when needed, regulated by ultrasonic level switches
  • Compact design — easy to transport and relocate
  • Safe and reliable — operation with airlift and overflow protection


  • Water treatment: flocculation of industrial and drinking water
  • Wastewater treatment: physicochemical treatment
  • Sludge treatment: centrifuges, screw presses, filter presses to improve dewatering
  • Mining: concentrate sludge will sink to the bottom faster Speeds up production
  • Paper industry: retention aid
  • Cooling water treatment: inhibitors and biocides

Various custom polymer dosing systems


Polymer preparation units are used for the preparation and dosing of polymer solutions. Polymers are commonly used as coagulants with suspended particles in wastewater treatment plant effluents.

Polymer dosing systems are turnkey automated machines for continuous preparation and dosing of polymer solutions. The raw materials for their preparation can be either dry powder agents or liquid chemicals, which continuously and efficiently complete the polymer chemistry and mixing to obtain homogeneous and active polymer solutions.

Generally refers to the dosing of polymeric agents in the wastewater in water treatment chemicals. Polymer dosing can enhance the effect of water treatment, improve the efficiency of treatment, and protect water treatment equipment.

Flocculation: The process of forming a floc with larger particles by adsorption, banding and bridging of the “small alum flowers” formed during the coagulation process.

Coagulation: It is the general name of two processes: coagulation and flocculation. It is the process of aggregation of colloidal particles and tiny suspended matter in water.

That is to say, “coagulation” includes the whole process from raw water injection to water mixing, drug reaction (destabilization, flocculation) and then to the formation of large particles of flocs. And flocculation refers to the stage of forming large flocs from tiny flocs after the destabilization of colloidal particles. Therefore, flocculation is only one step of coagulation.

  1. It has the performance of adsorption, coagulation and sedimentation. Mainly used in sewage treatment, wastewater treatment, drinking water treatment, recycling water treatment, production water treatment. Advantage is the small amount, low cost, in the water treatment industry is one of the more commonly used water treatment agents.
  2. With phosphorus removal effect, can generate deposition with phosphate in wastewater, suitable for phosphorus removal in sewage plants. Polymeric aluminum chloride is usually used as coagulant.
  3. Has high efficiency adsorption capacity, can quickly and effectively form dense and large alum flowers, therefore, in the treatment of industrial wastewater is usually used as a coagulant, can effectively remove heavy metal ions contained in the sewage, radioactive substances, deodorization, bacteria, aluminum and other impurities, therefore, no matter what sewage can achieve good water purification effect, so that the water quality becomes clean and safe.

Product categories

Popular articles