Zero XS90

Summary

Product Identification

The ZERO-XS90 is a series of nanofiltration separation membrane elements, part of the ZERO Liquid Discharge (ZLD) - ZERO series. It is a highly selective, fouling-resistant nanofiltration membrane product.

Application

This product is developed for low-energy consumption resource recycling, specifically targeting sodium chloride and sodium sulfate. It is suitable for the selective separation of high pollution concentrated brine with TDS 35000-70000 ppm in zero liquid discharge processes.

Key applications include:

• Chlor-alkali industries.
• Desulfurization wastewater treatment.
• Removal of sodium sulfate from dyeing wastewater.
• Separation of monovalent and divalent salts in printing and dyeing wastewater.

Product Performance

Test Conditions:

• Operating pressure: 100 psi (0.69 MPa)
• Solution: 2000 mg/L MgSO₄
• Temperature: 25 ℃
• pH: 7.0 ± 0.5
• Recovery rate: 15%

Notes:

• Each membrane element may have ±20% variation in permeate flow.
• Minimum Rejection Rate: 98.0%

Operating Limits

• Maximum operating pressure: 600 psi (4.14 MPa)
• Maximum feedwater temperature: 45 ℃
• Maximum inlet flow rate: 17 m³/h
• Maximum concentration of free chlorine: 0.1 mg/L
• Maximum pressure drop per element: 15 psi (0.1 MPa)
• Allowed pH range for feedwater in operation: 3-10
• Allowed pH range for chemical cleaning: 1-13
• Maximum feedwater SDI₁₅: 5

Handling and Storage

• Dry membrane elements are shipped without preservation solution. Wet membrane elements use 1.0% sodium bisulfite (with 10% propylene glycol antifreeze in winter) as preservation solution and are vacuum packaged.
• Dry membrane elements must always be maintained wet after soaking. Wet membrane elements not in use for extended periods require preservation solution.
• For first-time use, flush at low pressure for 15-25 minutes, then at high pressure for 60-90 minutes (water flow not less than 50% of system design).
• The permeate and concentrated water from the first hour of initial operation should be discharged.
• The operating limits and guidelines mentioned in this document are part of the limitations for the three-year warranty on the membrane element.
• The addition of any chemicals that may affect the membrane element during storage and operation is prohibited.
• Refer to the Product Manual for detailed instructions on installation, commissioning, storage, and transportation.

Dimensions and Packaging

• Packing carton (L:W:H): 1080×216×232mm
• Connector material number: 3.02.09.0006

---

Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data for any project must match the OEM PDF revision used on that specific project.

Official datasheet (PDF)

PDF datasheet