Technical Specifications and Operational Parameters of Veolia ZW1500-X Pressurized Ultrafiltration Membrane

 

Technical Specifications and Operational Parameters of Veolia ZW1500X

The Veolia ZW1500X Pressurized Ultrafiltration Membrane is engineered to deliver consistent, high-performance water treatment across a wide range of operating conditions, supported by precise technical specifications and flexible operational parameters that make it adaptable to diverse applications. As a premium product in Veolia’s ZeeWeed lineup, the ZW1500X is designed with meticulous attention to detail, ensuring that every component meets the highest standards of quality, durability, and efficiency. This introduction provides a comprehensive overview of the ZW1500X’s technical specifications, operational parameters, and mechanical characteristics—key information for engineers, system designers, and operators seeking to integrate this advanced membrane into their water treatment systems.

### Core Membrane Specifications

The ZW1500X’s performance is rooted in its precision-engineered membrane core, which features the following key specifications: Membrane material is high-grade polyvinylidene fluoride (PVDF), selected for its exceptional mechanical strength, chemical resistance, and fouling resistance. PVDF is highly resistant to a wide range of chemicals, including chlorine (up to 1,000 mg/L as NaOCl, depending on feedwater pH), acids, and bases, making it suitable for use in harsh operating environments and enabling effective chemical cleaning to restore membrane performance. The nominal pore diameter is 0.02 microns, which is optimized for the removal of particulates, bacteria (including E. coli and coliform), viruses, and colloidal matter, while maintaining high permeate flow rates. This pore size ensures that the ZW1500X meets or exceeds regulatory requirements for drinking water and industrial process water quality worldwide.

The membrane configuration consists of hollow fibers with an outer diameter (OD) of 1.1 mm and an inner diameter (ID) of 0.66 mm. This fiber size balance ensures optimal flow distribution, mechanical stability, and filtration efficiency—allowing for efficient permeate collection while minimizing pressure drop across the membrane. Each ZW1500X module features a nominal membrane surface area of 55.7 m² (600 ft²), a design that maximizes throughput per module and reduces the number of modules required for large-scale systems, thereby saving space and installation costs.

### Mechanical and Dimensional Specifications

The ZW1500X module is constructed with durability and ease of installation in mind, featuring robust mechanical components and standardized dimensions that facilitate seamless integration into existing or new water treatment systems. The module housing is made of high-quality PVC with glass-reinforced plastic (GRP) caps, providing excellent structural integrity, corrosion resistance, and lightweight design for easy handling. The maximum shipping weight of the module is 32 kg (70 lb), while the lifting weight varies between 30-36 kg (65-80 lb) depending on solids accumulation—making it manageable for on-site installation teams without the need for heavy lifting equipment.

The module dimensions are standardized to ensure compatibility with common membrane racks and system configurations: height is 1919 mm (75.6 inches), diameter is 180 mm (7 inches). The feed and permeate connections are 2-inch (DN 50) Victaulic fittings, while the reject connection is 1.5-inch (DN 40) Victaulic fittings—standardized connections that simplify installation and reduce the risk of leaks. The ZW1500X is designed to be installed in module racks, which can be configured in parallel or series to meet specific flow rate requirements, providing flexibility for system design and expansion.

### Operational Parameters

The ZW1500X is engineered to operate efficiently across a wide range of parameters, making it adaptable to diverse feedwater conditions and application requirements. The flow range per module is 45-180 m³/day (8-33 gpm), allowing for flexible operation to match varying water demand. The maximum shell inlet pressure is 379 kPa (55 psi), while the transmembrane pressure (TMP) range is 0-276 kPa (0-40 psi)—parameters that ensure stable operation and prevent membrane damage from excessive pressure.

The ZW1500X can operate at temperatures ranging from 5°C to 40°C (41°F to 104°F), with a maximum operating temperature of 40°C (104°F). The operating pH range is 5.0-10.0, making it suitable for feedwater with varying acidity or alkalinity. For cleaning, the membrane can tolerate a pH range of 2.0-12.0, enabling effective chemical cleaning with acids (to remove inorganic fouling) and bases (to remove organic fouling), thereby restoring membrane performance and extending service life.

The ZW1500X incorporates efficient backwashing and air scouring systems to minimize fouling and maintain performance. The air scour flow rate is 5.1 m³/h (3 dcfm), while the backwash flow rate is 1.8 m³/hr (8 gpm). These parameters are optimized to remove accumulated solids from the membrane surface without damaging the hollow fibers, ensuring consistent flow rates and filtration efficiency over time. The module also supports pulse式 air-water backwash technology, which reduces backwash water consumption by 45% compared to traditional systems—an environmentally sustainable and cost-effective feature.

### Storage and Handling Specifications

Proper storage and handling are critical for maintaining the ZW1500X’s performance and extending its service life. The modules can be stored in their original factory packaging for up to 1 year prior to installation, provided they are stored in a controlled environment between 5°C and 35°C (41°F to 95°F). Modules must not be exposed to heat sources, ignition, or direct sunlight (UV light), as these can damage the PVDF membrane and compromise performance. Veolia provides detailed control parameters and monitoring guidelines for specific applications, ensuring that operators can properly store, handle, and maintain the ZW1500X modules to maximize their lifespan.

In conclusion, the Veolia ZW1500X’s technical specifications and operational parameters are engineered to deliver consistent, high-performance water treatment across diverse applications. Its precise membrane design, robust mechanical construction, and flexible operating range make it a versatile solution for municipal, industrial, and commercial water treatment needs. By adhering to these specifications and parameters, operators can ensure that the ZW1500X operates efficiently, reliably, and cost-effectively for years to come.