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As a professional manufacturer based in Tianjin, China, Tianjin ZhuoLiNeng (ZLN) Technology Co., Ltd specializes in designing and producing advanced water treatment equipment. Our Skid Mounted Liquid Chlorine Generator for Municipal Wastewater Treatment represents a reliable, cost-effective, and environmentally friendly solution for on-site chlorine production. This system eliminates the risks associated with transporting and storing hazardous chlorine gas or bulk liquid chemicals, offering a safer alternative for disinfection in municipal wastewater plants. With a compact, prefabricated skid design, it combines electrolysis cells, power supply, control panel, and dosing system into a single unit, significantly reducing installation time and footprint.
The generator operates by electrolyzing a brine solution (sodium chloride) to produce sodium hypochlorite – a powerful and safe disinfectant. This method ensures consistent chlorine concentration tailored to the plant's flow rate and pathogen reduction requirements. Below we detail the key features, technical specifications, and the concrete benefits your facility can expect.
Key Features & Advantages
Integrated Skid Design: All components are pre-mounted on a heavy-duty stainless steel skid, reducing field installation work by up to 70%. The system is factory-tested and ready to run upon connection to utilities.
On-Site Generation: Produces liquid chlorine (as sodium hypochlorite) on demand using only salt, water, and electricity. Eliminates the need for chemical procurement, storage, and associated safety risks.
Automated Operation: Equipped with a PLC-based control system that automatically adjusts chlorine production rate based on flow signals or residual chlorine feedback. Remote monitoring and control are available as an option.
High Efficiency Electrolytic Cells: Our cells utilize DSA (Dimensionally Stable Anode) technology with titanium substrate coated with mixed metal oxides, ensuring long service life (over 5 years under normal conditions) and low energy consumption.
Built-in Safety Features: Includes hydrogen gas dilution (to keep H₂ concentration below 1%), automatic shutdown on abnormal parameters (e.g., high temperature, low flow), and leak detection.
Low Operating Cost: Typically produces 1 kg of equivalent chlorine from 3.0–3.5 kg of salt and 4.0–5.0 kWh of electricity, offering substantial savings compared to purchased sodium hypochlorite or chlorine gas.
Modular Scalability: Multiple skids can be paralleled to achieve higher total chlorine output, with centralized controls.
Technical Specifications
| Parameter | Typical Range | Notes |
|---|---|---|
| Chlorine Production Rate | 1 – 100 kg Cl₂/h | Customizable based on flow and demand |
| Sodium Hypochlorite Concentration | 0.5% – 1.0% (as available Cl₂) | Lower concentration minimizes decomposition |
| Salt Consumption | 3.0 – 3.5 kg per kg Cl₂ | Refined salt (NaCl ≥ 99%) |
| Energy Consumption | 4.0 – 5.0 kWh per kg Cl₂ | AC input, including rectifier losses |
| Electrolytic Cell Type | Unipolar, plate-type DSA | High current density, robust |
| Control Mode | PLC – Automatic (flow/chlorine feedback) | Optional remote SCADA integration |
| Power Supply | 3-phase, 380V/50Hz (other voltages available) | Step-down transformer included |
| Skid Dimensions (L×W×H) | Custom, e.g., 3×2×2.5 m (for 10 kg/h unit) | Adaptable to site constraints |
Operational Benefits: By installing our skid-mounted generator, municipal wastewater plants can significantly reduce chemical handling costs and improve worker safety. The system's automated control ensures consistent disinfection performance even with fluctuating flow rates, meeting discharge permits reliably. Additionally, the on-site generation eliminates dependence on chemical supply chains, providing operational independence during emergencies.
Trust & Quality
ZLN Technology Co., Ltd has established itself as a reliable supplier in the global water treatment industry. Our certified quality management system ensures each unit undergoes rigorous testing before shipment. Located in Tianjin port city, we enjoy convenient logistics for export to markets worldwide, including North America, South America, Europe, Southeast Asia, Africa, Oceania, and the Middle East. Our team of experienced engineers provides turnkey support – from system design and installation guidance to after-sales service. Hundreds of successful installations in municipal, industrial, and agricultural applications attest to the durability and performance of our equipment.
Why Choose ZLN? We offer competitive pricing without compromising on quality. Our modular skid design can be tailored to fit existing plant layouts, and we provide comprehensive documentation (including P&ID, electrical schematics, and O&M manuals). With over 10 years of manufacturing experience, we understand the unique challenges of wastewater disinfection and are dedicated to delivering solutions that work.
We invite you to contact us for a detailed proposal and technical discussion. Our sales engineers will help you select the right capacity and configuration for your treatment plant. Choose ZLN – a partner committed to clean water and sustainable operations.
Frequently Asked Questions
Q: What raw materials are required to operate the generator?
A: The system requires only common salt (sodium chloride, 99% purity), clean water, and electricity. No additional chemicals are needed.Q: How does the chlorine production rate adapt to varying wastewater flow?
A: The PLC control unit receives a 4-20mA signal from the plant’s flow meter and adjusts the rectifier current to produce the required chlorine dosage. Alternatively, a residual chlorine feedback loop can be used.Q: Is the generated sodium hypochlorite safe to handle?
A: Yes, the concentration is typically 0.5-1.0% available chlorine, which is far less hazardous than commercial bleach (10-15%) or chlorine gas. Standard PPE (gloves, goggles) is recommended.Q: What is the expected lifespan of the electrolytic cells?
A: Under normal operating conditions (proper water quality, regular cleaning), the DSA electrodes last 5-7 years. Replacement is straightforward and cost-effective.Q: How much space does the skid require?
A: The footprint depends on capacity. For a typical 10 kg/h unit, the skid measures approximately 3m (L) × 2m (W) × 2.5m (H). We can customize the layout to fit tight spaces.Q: Do you provide installation and commissioning support?
A: Yes, we offer remote guidance via video call or on-site supervision upon request. Our manuals include step-by-step instructions. We also train your operators.Q: Is the system compliant with international safety standards?
A: The design follows quality procedures and incorporates safety features such as hydrogen dilution, over-temperature protection, and emergency shut-off. Specific standards (e.g., CE, ATEX) can be discussed for your project.Q: What maintenance is required?
A: Routine tasks include periodic cleaning of the electrolytic cells (e.g., with diluted acid to remove scale), checking brine concentration, and replacing seals/ filters. A maintenance schedule is provided.
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