Automatic Polymer Preparation & Dosing System | LK-JYJ 500-6000 L/h

Key Item	Specification
Preparation Capacity	500-6000 L/h
Preparation Concentration	0.1%-0.5%, adjustable
Material	SS304 / SS316L
Control	PLC + HMI automatic control
Dosing Pump	Included
Power Supply	Customized according to project requirements

 

What Is an Automatic Polymer Preparation System?

 

An automatic polymer preparation system is used to prepare polymer solutions such as PAM and other commonly used water-treatment polymer flocculants.

Instead of manually adding polymer and water into a mixing tank, the LK-JYJ system automatically controls polymer feeding, water proportioning, mixing, maturation, storage and metering dosing.

The purpose is to provide a more stable and uniform polymer solution for downstream wastewater treatment processes.

 

 

 

Manual polymer preparation may lead to unstable concentration, insufficient dissolution, polymer agglomeration and inconsistent dosing. A controlled preparation system helps standardize polymer and water addition and reduce operator dependence.

 

• More stable polymer concentration

• More uniform polymer dissolution

• Reduced manual preparation work

• Continuous polymer solution supply

• Automatic dosing control

• Lower risk of polymer agglomeration

• Better compatibility with continuous wastewater treatment processes

• Easier integration with DAF, sludge dewatering and flocculation systems

 

 

 

Polymer Feeding

Polymer is introduced into the preparation system through the feeding unit. The feeding rate can be adjusted according to the required solution concentration and preparation capacity.

Water Proportioning

Water enters the system according to the preset preparation ratio. The polymer feeding rate and water supply are coordinated to maintain the required polymer concentration. Typical preparation concentration is 0.1%-0.5%.

Mixing and Dissolution

Polymer and water enter the mixing section where the polymer is dispersed and dissolved. Proper initial mixing helps reduce agglomeration and improves contact between polymer particles and water.

Polymer Maturation

After initial mixing, the polymer solution is retained for further maturation. This stage allows the polymer chains to hydrate and develop before the solution is used for treatment.

Storage and Dosing

The prepared polymer solution enters the storage section. The integrated metering pump then delivers the polymer solution to the required dosing point according to process demand.

 

 

Mixing Chamber

Polymer and water are introduced and mixed to complete initial dispersion and hydration. The objective is to obtain a uniform primary polymer solution and reduce undissolved polymer agglomerates.

Maturation Chamber

The polymer solution remains in the maturation section for sufficient hydration and activation. Gentle mixing is used to maintain solution uniformity while avoiding unnecessary shear on the polymer.

Storage & Dosing Chamber

The prepared polymer solution enters the final storage section before being delivered by the dosing pump. The level-controlled system allows preparation and dosing to operate automatically according to solution demand.

 

Automatic Polymer Preparation

PLC automatic control reduces dependence on manual polymer preparation and provides a more consistent preparation process.

500-6000 L/h Capacity Range

Eight standard models are available for different project capacities.

Adjustable Preparation Concentration

Typical polymer preparation concentration is 0.1%-0.5%, adjustable according to polymer type and treatment requirements.

Integrated Dosing Pump

The dosing pump is included in the system, allowing prepared polymer solution to be delivered directly to the treatment process.

SS304 / SS316L Available

Material selection can be based on chemical properties, wastewater characteristics and project requirements.

PLC + HMI Automatic Control

PLC automatic control and an HMI touch screen simplify operation and process monitoring.

Customized Power Supply

Voltage, frequency and phase can be customized according to the installation country and project electrical requirements.

 

 

Model	Preparation Capacity	Dimensions L×W×H (mm)	Total Power (kW)	Empty Weight (kg)	Operating Weight (kg)
LK-JYJ500	500 L/h	1000 × 1030 × 1600	1.87	400	1500
LK-JYJ1000	1000 L/h	1845 × 1100 × 1750	2.62	450	2000
LK-JYJ1500	1500 L/h	2065 × 1100 × 1750	2.62	550	2650
LK-JYJ2000	2000 L/h	2340 × 1300 × 1800	2.62	750	3200
LK-JYJ3000	3000 L/h	2740 × 1500 × 1900	3.67	850	3680
LK-JYJ4000	4000 L/h	3350 × 1846 × 1758	3.67	950	4800
LK-JYJ5000	5000 L/h	3350 × 1846 × 1950	3.67	1010	5000
LK-JYJ6000	6000 L/h	3350 × 1846 × 2100	6.67	1120	6200

 

Note: Dimensions, material, electrical configuration and system layout can be customized according to project requirements.

 

 

The LK-JYJ system can be configured for commonly used polymer flocculants in water and wastewater treatment.

Anionic Polymer / APAM

Often used in coagulation, sedimentation, mineral processing and industrial wastewater treatment.

Cationic Polymer / CPAM

Commonly used in sludge conditioning and sludge dewatering applications.

Nonionic Polymer / NPAM

Can be used for specific industrial wastewater and solid-liquid separation processes.

The required preparation concentration and maturation time should be selected according to polymer characteristics and actual treatment requirements.

 

 

 

Sludge Dewatering

Polymer preparation before screw press, belt filter press, filter press and centrifuge. Stable polymer preparation helps improve sludge flocculation before mechanical dewatering.

Dissolved Air Flotation (DAF)

Polymer can be dosed before or inside a DAF process to promote floc formation and improve solid-liquid separation.

Coagulation and Flocculation

Suitable for polymer-assisted coagulation and flocculation in municipal wastewater, industrial wastewater, drinking water, chemical, food, paper, textile and mining wastewater.

Sedimentation and Clarification

Polymer may be used as a coagulant aid to improve suspended-solid aggregation and sedimentation performance.

 

 

• Municipal Wastewater Treatment Plants
• Industrial Wastewater Treatment
• Sludge Treatment Systems
• DAF Systems
• Mining & Mineral Processing
• Paper & Pulp Industry

 

 

SS304

Suitable for many conventional municipal and industrial wastewater treatment applications.

SS316L

Can be selected where higher corrosion resistance is required or where the chemical environment is more demanding.

The final material should be confirmed according to wastewater characteristics, polymer type, other chemicals present in the system, chloride concentration, installation environment and project specifications.

 

 

The preparation capacity should not be selected only according to wastewater treatment flow. A proper selection normally considers polymer type, polymer consumption, preparation concentration, required polymer solution flow, operating hours and downstream equipment.

 

• Polymer type
• Dry polymer consumption (kg/h or kg/day)
• Preparation concentration (%)
• Required polymer solution flow (L/h)
• Daily operating hours
• Downstream equipment: DAF / screw press / belt filter press / clarifier / filter press

 

Example of Polymer Preparation Capacity Calculation

Example: Dry polymer consumption = 1 kg/h; preparation concentration = 0.2%.

A 0.2% polymer solution contains approximately 2 kg dry polymer per 1000 L solution.

Required solution flow ≈ 500 L/h.

In this case, LK-JYJ500 may be considered as a preliminary model. Final selection should still consider operating conditions, design margin and actual polymer characteristics.

 

 

Item	Manual Preparation	LK-JYJ Automatic System
Polymer Feeding	Manual	Automatic
Water Control	Manual	Automatic proportioning
Concentration Stability	Operator dependent	Controlled
Mixing	Manual / Single tank	Multi-stage preparation
Maturation	Difficult to control	Controlled preparation process
Dosing	Separate	Integrated dosing pump
Operation	High manual involvement	PLC automatic control
Continuous Supply	Limited	Suitable for continuous operation

 

The main benefit of automatic preparation is not simply reducing labor. Stable polymer concentration and repeatable preparation conditions are often more important because polymer preparation quality directly influences downstream flocculation and dewatering performance.

 

 

• Preparation capacity: 500-6000 L/h standard models
• Material: SS304 / SS316L
• Power supply: voltage, frequency and phase customized by project
• Control system: PLC automatic control
• Dosing configuration: integrated metering pump
• System layout: customized according to installation space and project arrangement

 

 

 

Before shipment, the system can be checked for mechanical operation, automatic control response, water flow, level control, dosing pump operation and leakage according to the final project configuration.

 

• Motor and agitator operation check
• PLC / HMI function check
• Water filling and flow check
• Level control test
• Automatic start / stop test
• Dosing pump operation check
• Pipeline and tank leakage inspection

 

 

To recommend the correct LK-JYJ model, please provide as much of the following information as possible:

 

• Application: DAF / sludge dewatering / sedimentation / other
• Polymer type: APAM / CPAM / NPAM / other
• Polymer form: powder / other form
• Dry polymer consumption: kg/h or kg/day
• Required preparation concentration: %
• Required polymer solution capacity: L/h
• Operating hours: h/day
• Preferred material: SS304 / SS316L
• Power supply: V / Hz / Phase
• Installation country
• Downstream equipment
• Other technical requirements

 

If the required polymer solution capacity is not known, provide wastewater flow, application and polymer dosage for a preliminary model recommendation.

 

 

What is the preparation capacity of the LK-JYJ polymer dosing system?

The standard LK-JYJ series covers preparation capacities from 500 L/h to 6000 L/h.

What polymer concentration can the system prepare?

A typical preparation concentration is approximately 0.1%-0.5%. The actual concentration should be selected according to polymer type and treatment requirements.

Can the system prepare PAM?

Yes. The system can be configured for commonly used polymer flocculants including anionic, cationic and nonionic polymers used in water and wastewater treatment.

Is the dosing pump included?

Yes. The LK-JYJ system includes a metering dosing pump for delivering prepared polymer solution to the required dosing point.

Is SS316L available?

Yes. Both SS304 and SS316L stainless steel constructions are available.

Can the voltage be customized?

Yes. Power supply can be customized according to the installation country and project electrical requirements.

How do I choose between 500 L/h and 6000 L/h models?

Model selection mainly depends on polymer consumption, preparation concentration, required solution flow, daily operating hours and treatment process.

 

 

Looking for an automatic polymer preparation system for DAF, sludge dewatering, coagulation, flocculation or wastewater treatment?

 

The LK-JYJ Automatic Polymer Preparation & Dosing System is available in capacities from 500 to 6000 L/h, with SS304 / SS316L construction, PLC automatic control, integrated dosing pump and customized electrical configuration.

 

Send us your application, polymer consumption, preparation concentration and power supply requirements to receive a model recommendation and quotation.