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Help CenterHypochlorous Acid On-site Generation System for Drinking Water Plants – Committed to Reliable Service
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Tianjin ZhuoLiNeng (ZLN) Technology Co., Ltd. is a professional manufacturer specializing in onsite hypochlorous acid generation systems for drinking water plants. With over a decade of engineering experience and a strong commitment to reliable service, our HOCl systems deliver consistent, safe, and cost-effective disinfection solutions worldwide. Designed to replace traditional chlorine gas or sodium hypochlorite storage, our system produces a high-purity, non-toxic disinfectant on demand, ensuring water safety while eliminating chemical transportation and handling risks.
Our generation units utilize advanced electrolytic cell technology, converting a dilute salt solution (NaCl) into hypochlorous acid (HOCl) with >99% active chlorine yield. The process is environmentally friendly, producing only hydrogen gas (safely vented) as a byproduct. The system is fully automated with PLC controls and remote monitoring capabilities, allowing operators to adjust production rates, concentration levels, and pH in real time. This ensures optimal disinfection performance even under varying raw water quality conditions.
Key Features & Advantages
On-Demand Production: Generate hypochlorous acid only when needed, eliminating chemical storage, decomposition, and safety hazards.
High Efficiency: Electrode life exceeds 8,000 hours; energy consumption as low as 2.5 kWh per kg of active chlorine produced.
Modular Design: Scalable from 100 L/h to 5,000 L/h per unit, with parallel expansion capability for large plants.
User-Friendly Interface: Touch screen HMI with intuitive menus, alarm logs, and data export via USB or Ethernet.
Low Maintenance: Self-cleaning electrode polarity reversal reduces scaling; only routine salt replenishment and periodic electrode inspection needed.
Global Compatibility: Designed for international voltage/frequency; CE and certified; spare parts available for all models.
Remote Monitoring: Optional IoT module enables remote operation, fault alerts, and performance analytics via cloud platform.
Technical Specifications (Standard Model)
| Parameter | Value |
| Production Capacity (L/h) | 500 / 1000 / 2000 / 5000 |
| Free Chlorine Output (g/h) | 50 – 2500 |
| Output Concentration (ppm as HOCl) | 100 – 500 (adjustable) |
| Electrode Type | Mixed Metal Oxide (MMO) coated titanium |
| Power Consumption (kWh/kg Cl2) | ≤ 2.8 |
| Salt Consumption (kg/kg Cl2) | ≤ 3.5 |
| Operating Temperature | 5°C – 40°C |
| Water Supply Pressure | 0.2 – 0.6 MPa |
| Control Panel | PLC + 7" HMI |
| Protection Rating | IP54 (indoor) / IP65 (outdoor optional) |
Our hypochlorous acid generation system is engineered to meet the strictest water quality standards. The product water after disinfection has undetectable residual chlorate and by-products, making it ideal for drinking water plants that prioritize public health and environmental compliance. The system can be integrated with existing SCADA networks for seamless plant automation.
Compared to conventional chlorination methods, onsite HOCl generation offers up to 40% lower total operating cost when factoring in chemical purchases, transportation, storage, and labor. Furthermore, the elimination of hazardous chemical storage significantly reduces insurance premiums and regulatory compliance burdens.
Reliable Service Commitment
As a manufacturer based in Tianjin, China, ZLN Technology has shipped systems to over 30 countries across North America, South America, Europe, Africa, and Asia. Our service team provides:
Installation & Commissioning: On-site or remote supervision by senior engineers.
Training: Comprehensive operator training for process control and routine maintenance.
Spare Parts: Full stock of electrodes, membranes, pumps, and control boards available for quick dispatch.
Warranty: 24-month standard warranty; extended programs available upon request.
Trusted by municipal and industrial water plants worldwide, our systems operate in some of the most demanding environments. With certification and a dedicated quality assurance process, we deliver consistent performance and peace of mind. Contact us today for a customized proposal and discover why ZLN is the partner of choice for reliable onsite hypochlorous acid generation.
Frequently Asked Questions
Q1: What is the difference between hypochlorous acid and bleach?
Bleach (sodium hypochlorite) is a less stable, alkaline solution containing chlorate by-products. Hypochlorous acid produced by our system is neutral pH, much stronger disinfectant (up to 80x more effective against bacteria), and decomposes into harmless substances after use.
Q2: How much space is required for installation?
A typical 1000 L/h skid occupies about 2m x 1.5m x 1.8m (L×W×H). Custom layout is available for tight spaces. We also offer containerized solutions for outdoor use.
Q3: Can the system handle water with high turbidity or TDS?
Yes, but we recommend pre-filtration if turbidity exceeds 10 NTU or TDS above 2000 ppm. Our system includes optional softener and carbon filter packages to protect electrodes.
Q4: What safety measures are integrated?
Multiple sensors monitor hydrogen gas, temperature, pressure, and flow. Automatic shutdown if any parameter exceeds safe limits. Hydrogen concentration is kept below 25% LEL with forced ventilation.
Q5: What is the lifetime of the electrolytic cell?
Under recommended operating conditions, the MMO electrode lifespan is typically 8,000–10,000 hours (equivalent to 3–5 years of continuous operation). Replacement cell cost is relatively low.
Q6: Do you provide spare parts globally?
Yes, we stock critical spares in Tianjin and partner warehouses in several countries. Emergency shipments can be arranged within 72 hours.
Q7: Can I integrate the system with my existing chlorine dosing line?
Absolutely. Our system outputs a solution that can be directly injected into existing water mains using a dosing pump. We provide complete integration guidelines and technical support.
Q8: What after-sales support is offered?
We offer 24/7 remote technical support via phone, email, and video call. On-site service can be arranged within 2 weeks for most locations. Annual service contracts are available.
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