Chemical Dosing System For Municipal/Commercial Water Supply & Pool 1

Chemical Dosing System For Municipal/Commercial Water Supply & Pool 2

Chemical Dosing System For Municipal/Commercial Water Supply & Pool

The Municipal/Commercial Water Supply & Pool Water Treatment Dosing System is a fully automatic integrated equipment specially designed for water quality purification and stabilization in municipal water supply, commercial water use and swimming pool scenarios. Its core function is to accurately and stably add specific chemical agents to raw water, supply water or pool water according to different water quality requirements, thereby effectively removing impurities, inhibiting microbial growth, adjusting water pH value, and ensuring the safety, health, comfort and compliance of water quality.

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Product Overview

This system features strong scenario adaptability and can be customized according to water treatment capacity, water quality indicators and application scenarios (such as municipal water plants with large water volume, commercial buildings with high water quality stability requirements, and swimming pools with strict hygiene standards). By integrating high-precision dosing components, intelligent control systems and reliable detection devices, it effectively solves the problems of unstable manual dosing, low efficiency, poor water quality control effect and difficulty in meeting regulatory standards, and meets the strict water quality management requirements of modern municipal, commercial and leisure industries.

Application Scenarios

Chemical Dosing System For Municipal/Commercial Water Supply & Pool 4

Municipal Water Treatment Plants

Suitable for large-scale municipal water supply systems, including raw water pretreatment and finished water deep treatment links. It mainly realizes turbidity removal through coagulant dosing and microbiological control through disinfectant dosing, ensuring that the finished water meets national drinking water hygiene standards.

Commercial Buildings

Applied to comprehensive commercial buildings, office buildings, shopping malls and other commercial premises. It focuses on maintaining the stability of supply water quality, adjusting water pH value to prevent pipeline corrosion, and adding appropriate disinfectants to ensure water hygiene in public areas (such as restrooms, catering areas).

Chemical Dosing System For Municipal/Commercial Water Supply & Pool 6

Hotels

Used in hotel water supply systems and supporting swimming pools. For supply water, it mainly adjusts pH value and controls residual chlorine to ensure the safety of guest water use (such as bathing, drinking); for hotel swimming pools, it realizes integrated treatment of turbidity removal, disinfection and pH adjustment to provide comfortable and hygienic swimming water environment.

Swimming Pools

Applicable to public swimming pools, community swimming pools, gym swimming pools and other professional swimming venues. It adopts targeted dosing strategies according to pool water circulation characteristics, including coagulant dosing for turbidity and impurity removal, disinfectant dosing for bacteria and virus control, and pH regulator dosing for improving disinfection efficiency and swimmer comfort.

Application-Specific Process Design & Water Quality

The system targets non-soluble pollutants through physico-chemical processes. Performance is evaluated based on the removal of suspended and colloidal substances.

Dosing Type	Core Function	Applicable Scenario	Typical Agents
Coagulant	Neutralize the charge of colloidal particles and suspended impurities in water, promote their aggregation into flocs, and remove them through sedimentation or filtration to reduce water turbidity; improve the removal effect of subsequent disinfection and deep treatment. The turbidity removal rate can reach 90% or more.	Municipal water treatment plants (raw water pretreatment), swimming pools (circulation water turbidity removal), commercial building water supply (raw water purification in areas with poor water quality)	Aluminum sulfate, polyaluminum chloride (PAC), polyferric sulfate (PFS), polyacrylamide (PAM)
Disinfectant	Quickly kill bacteria, viruses, algae and other microorganisms in water; maintain appropriate residual disinfectant concentration to prevent secondary pollution during water storage and transportation; ensure water hygiene and safety. It can effectively inactivate Escherichia coli, Legionella and other pathogenic microorganisms.	Municipal water treatment plants (finished water disinfection), commercial buildings (public area water supply disinfection), hotels (supply water and pool water disinfection), swimming pools (circulation water disinfection)	Sodium hypochlorite, chlorine dioxide, calcium hypochlorite, ozone (with residual chlorine supplementary dosing)
pH Regulator	Adjust water pH value to the optimal range (6.5-8.5 for drinking water, 7.2-7.8 for pool water); improve the effectiveness of disinfectants (such as chlorine disinfection efficiency is the highest at pH 7.2-7.8); reduce pipeline corrosion and scale formation; enhance swimmer comfort and avoid skin and eye irritation.	All application scenarios, especially municipal water supply (pH adjustment of finished water), swimming pools (pH adjustment of circulation water), hotels (supply water and pool water pH adjustment)	Sodium hydroxide, hydrochloric acid, sulfuric acid, sodium bicarbonate

Core Working Principle

The system adopts a "detection - control - dosing - feedback" closed-loop control mode to realize precise and adaptive dosing. The specific working process is as follows:

Chemical Dosing System For Municipal/Commercial Water Supply & Pool 8

Multi-Parameter Detection

On-line sensors (turbidity meter, residual chlorine analyzer, pH meter, flow meter, ORP meter, etc.) collect key parameters in real time according to different scenarios. For example, municipal water plants focus on turbidity and residual chlorine; swimming pools focus on turbidity, residual chlorine, pH value and ORP. The collected data is transmitted to the PLC control system in real time.

Chemical Dosing System For Municipal/Commercial Water Supply & Pool 9

Adaptive Dosage Calculation

The PLC controller compares the collected actual parameters with the preset scenario-specific target values (such as municipal finished water: turbidity ≤ 1 NTU, residual chlorine 0.3-0.5 mg/L; pool water: pH 7.2-7.8, residual chlorine 0.3-1.0 mg/L).

Precise Dosing Execution

The frequency conversion diaphragm dosing pump adjusts the output flow steplessly according to the control signal of the PLC, and delivers the agent from the corrosion-resistant storage tank to the designated dosing point (raw water pipeline, coagulation tank, disinfection tank, pool water circulation pipeline, etc.) through special pipelines. The pulsation damper and back pressure valve ensure stable dosing pressure and flow, avoiding dosage fluctuation caused by pressure changes.

Real-Time Feedback Adjustment

The system continuously monitors the water quality parameters after dosing. If there is a deviation between the actual value and the target value (such as residual chlorine lower than the standard due to increased water flow), the PLC will dynamically correct the dosage in real time. For swimming pools, it can also link with the pool water circulation pump to realize coordinated control of dosing and circulation.

Core Modules & Advantages

Agent Storage & Monitoring Module

Composed of scenario-specific corrosion-resistant storage tanks (PE, 316L stainless steel or FRP), ultrasonic liquid level sensors and liquid level alarms. For oxidizing disinfectants (such as chlorine dioxide), special anti-corrosion tanks are used; for coagulants with high viscosity, tanks with stirring devices are configured. It realizes safe storage of agents and real-time monitoring of liquid level, and automatically alarms when the liquid level is too low or too high.

Precision Dosing Module

Equipped with frequency conversion diaphragm dosing pumps (pump head material: 316L stainless steel/PTFE), pulsation dampers, Y-type filters and electromagnetic flow meters. The dosing accuracy is up to ±0.5%, which can meet the strict dosage requirements of different agents. The filter prevents impurities from clogging the pump body, and the flow meter realizes real-time monitoring of dosing flow.

Intelligent Control Module

Integrates PLC controller (Siemens/Schneider), It supports scenario-specific parameter preset (municipal/commercial/pool), automatic/manual switching, (supporting MODBUS, TCP/IP protocol). The touch screen provides a visual operation interface for parameter setting, fault query and historical data viewing.

Detection & Sensing Module

Configured with high-precision on-line instruments suitable for different scenarios. Municipal water plants are equipped with high-range turbidity meters and residual chlorine analyzers; swimming pools are equipped with ORP meters and low-range turbidity meters.

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Installation & Maintenance

Site Requirements

Flat concrete ground with load-bearing capacity ≥1.5 times the net weight of the equipment; good ventilation and drainage (especially for pool scenarios, it is necessary to prevent water accumulation in the equipment area); away from open flames and high-temperature heat sources; reserved maintenance space ≥800mm around the equipment. For outdoor installation (such as municipal water plants), rainproof and sunshade facilities should be configured.

Power Supply

Voltage stability ±5%; equipped with independent power distribution cabinet and grounding device (grounding resistance ≤4Ω); power cable cross-section meets the equipment power requirements. For pool scenarios, the power supply should have waterproof and leakage protection functions that meet the national electrical safety standards for swimming pools.

Pipeline Connection

The dosing pipeline is connected to the water treatment pipeline (raw water pipeline, circulation pipeline) through flanges or quick connectors, and a check valve is installed to prevent backflow. The pipeline material should be compatible with the agent type (such as PPR pipes for acidic agents, UPVC pipes for chlorine-containing agents). For coagulant dosing, a static mixer should be installed at the dosing point to ensure uniform mixing.

After-Sales Service

● Warranty Period: 1 years for the whole system.

● Technical Support: Provide 24-hour response technical support (email, phone) to solve operation and maintenance problems in a timely manner. For complex faults, remote guidance through video can be provided.