China Automatic Polymer Powder Dosing System for Wastewater 1

China Automatic Polymer Powder Dosing System for Wastewater 2

China Automatic Polymer Powder Dosing System for Wastewater 3

China Automatic Polymer Powder Dosing System for Wastewater 4

China Automatic Polymer Powder Dosing System for Wastewater 5

China Automatic Polymer Powder Dosing System for Wastewater 6

China Automatic Polymer Powder Dosing System for Wastewater

Short article:

The China Automatic Polymer Powder Dosing System for Wastewater is an automated device that stores, feeds, and accurately meters polymer powder (such as PAM) into wastewater and sludge processes. It combines sealed hoppers, screw or vibrating feeders, mixers, and PLC control for dust-free, repeatable dosing and easy integration with existing treatment lines. The system improves flocculation, speeds solids–liquid separation, reduces chemical waste and labor, and supports remote monitoring and stable operation in continuous processes.

Usage scenarios (about 3 sentences):

Municipal wastewater treatment plants use it for sludge conditioning and dewatering to improve belt press or centrifuge performance and reduce sludge volume. Industrial facilities—textile, paper, food, mining, chemical and power plants—use it to clarify process effluent, remove suspended solids, and meet discharge standards. Mobile or decentralized sites (construction, temporary treatment, emergency response) deploy compact dosing units for on-site flocculation and rapid sediment removal.

brand name:

QILEE

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-1(sets):30(days),>1(sets):To be negotiated(days)

Place of Origin:

China

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size

2000*1000*1700

Suitable for medicament

Electronic control

0,1

Maximum number of instruments

Pump type

Diaphragm pump

Pump qty

4sets

Maximum flow rate

1000LPH

Processing Type

desalination

Power(W)

2 kW

Product name

China Polymer Dosing System

Voltage

220 V, 380 V

weight (kg)

100

productivity

500L/Hour

warranty

1 Year

place of origin

Shanghai, China

core components

Motor

machinery test report

Provided

video outgoing-inspection

Provided

Precise Automated Dust-Free Performance

The QWDS Polymer dosing system delivers precise, automatic chemical dosing and online monitoring of pH, DO and suspended solids to stabilize coagulation and sludge dewatering while minimizing chemical waste and operator intervention. Built as a compact, modular skid with options for imported screw or diaphragm metering pumps, back-pressure and safety valves, filters and cleaning pipelines, it offers industrial-grade quality and reliable performance. Ships in standard export carton packing with 3–20 day delivery and can link to on-site DCS for automatic, flow‑matched dosing of PAC, PAM and other reagents.

Accurate Automated Powder Dosing

The QWDS Polymer dosing system is an automatic chemical powder dosing unit engineered for coagulation, regulation and sludge dewatering in wastewater treatment, providing precise addition of PAC, PAM, acids/alkalis and other reagents with integrated online monitoring of pH, residual chlorine, DO and suspended solids. Its modular structure offers selectable screw or diaphragm metering pumps in multiple configurations (up to six pump sets), standard safety items (back pressure and safety valves, filters, diaphragm pressure gauges, cleaning pipelines) and DCS connectivity, delivering stable operation, reduced chemical waste and improved process control. Automatic pump switching, programmable dosing matched to total flow and process concentration, and easy scalability and maintenance make the system flexible for diverse sites and enhance sludge dewatering efficiency.

Automated Polymer Dosing Solution

The QWDS Polymer dosing system is an automatic chemical powder dosing solution for wastewater treatment, providing precise addition of reagents such as PAC, PAM, acids/alkalis, carbon sources and demulsifiers for processes like regulation, coagulation and sludge dewatering. It supports online monitoring of pH, residual chlorine, DO, suspended solids and sludge concentration, can link with on-site DCS to match dosage by flow and concentration, and uses selectable screw or diaphragm metering pumps with safety components including back-pressure and safety valves, filters, diaphragm pressure gauges and cleaning pipelines. Available in multiple models with pump capacities up to 2000 LPH per set and configurations up to six pump sets, the system enables automatic pump switching and reliable, stable dosing for industrial and municipal applications.

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Precise Automated Efficient Dosing

Developed by a leading Chinese water-treatment manufacturer with decades of R&D, the QWDS Polymer dosing system is an automatic polymer powder dosing solution for wastewater that pairs a precision screw feeder, sealed mixing chamber, and anti-bridging agitation for consistent feed and rapid hydration. It provides continuous, programmable dry-polymer dosing, PLC and remote-monitoring compatibility, accurate low-dose control and rapid flocculant activation to improve sludge dewatering, reduce chemical consumption and minimize downtime. Key features and advantages include modular, corrosion‑resistant construction for easy maintenance, self‑cleaning and anti‑clog mechanisms, energy‑efficient drives, adjustable dosing range with high repeatability, and compliance with international wastewater standards, delivering lower operating costs and reliable long‑term performance.

Material introduction

The QWDS Polymer dosing system is built with chemical-resistant 316L stainless steel for wetted components, high-density polypropylene/PVDF or PE for tanks and piping, and a robust coated steel frame for structural support. Metering units use screw or diaphragm pumps with PTFE, ceramic, or stainless steel wetted parts and imported-brand seals to resist acids, alkalis, PAC, PAM and other polymer flocculants. Standard accessories — back-pressure and safety valves, filters, PTFE-lined diaphragm pressure gauges and cleaning pipelines — are selected for compatibility and long-term stability in wastewater dosing applications.

◎ Stainless‑Steel Frame Model

◎ Chemical‑Grade Tank Variant

◎ PTFE‑Lined Wetted‑Parts Series

FAQ

What is the primary use of an automatic polymer powder dosing system for wastewater treatment?

The system automatically meters and feeds dry polymer powder (cationic, anionic or non‑ionic) into water to produce a polymer solution or directly dose powder into a process stream. It is used to improve flocculation, solids–liquid separation and sludge dewatering in municipal and industrial wastewater plants, helping clarify effluent and reduce cake moisture in dewatering units.

Which wastewater treatment scenarios is this system commonly applied to?

Typical scenarios include municipal sewage treatment (primary/secondary clarifiers and sludge handling), industrial effluent treatment (textile, pulp & paper, food & beverage, chemical and metal finishing), sludge dewatering for belt presses and centrifuges, thickening processes, and stormwater/combined sewer overflow treatment. It is also used where precise, repeatable polymer dosing is needed to control treatment chemistry and costs.

What polymer types and concentrations are compatible with the system?

Most systems handle standard dry polymer powders—cationic, anionic and non‑ionic grades—and can prepare stock solutions in common concentrations (often 0.1–1.0% w/w for conventional slurries, though exact concentrations depend on polymer type and process). Always consult the polymer supplier for recommended concentration ranges and solubility; the dosing system can usually be adjusted to meet those recommendations.

How is dosing rate determined and controlled during operation?

Dosing is set by required polymer feed mass or active polymer dose (e.g., mg/L) based on process tests (jar tests) and plant flow. Modern systems use variable‑speed screw or vibratory feeders plus a PLC to control feed rate and can integrate flow meters for flow‑proportional dosing, or accept remote start/stop and setpoints from SCADA. Operators typically start at the laboratory‑recommended dose, then optimize on plant performance (clarity, sludge dryness).

What routine maintenance and cleaning are required for reliable operation?

Regular tasks include inspecting and cleaning the powder hopper and feed device to prevent bridging, checking agitators and vibrators, verifying sensors and level switches, lubricating moving parts per the manual, and flushing wetting or mixing tanks to avoid polymer buildup. Periodic calibration of feeder output and verification of control signals is advised; keep spares for wear parts like screws, seals and liners.

What safety and troubleshooting considerations should operators be aware of?

Safety: control polymer dust with enclosures and local extraction, use PPE (gloves, goggles, dust masks) and follow MSDS instructions. Troubleshooting: poor flocculation can result from incorrect polymer type, wrong concentration, under/overdosing, low mixing energy or cold water—check polymer age and storage, verify feed rate and mixer function, and run jar tests to retune dose. Common mechanical issues include hopper bridging (use vibration or hopper design changes), feeder wear, or clogged wetting nozzles—inspect and clean as needed.

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