Specialty — Concentration & Separation
SP-HC Series — High-Efficiency Concentration & Separation
Up to 290,000 mg/L concentrate with 98.5% salt separation purity
Product description
The SP-HC series is developed for high-concentration applications, zero liquid discharge (ZLD) and resource recovery. Its core advantage is replacing ultra-high-pressure operating requirements: it achieves efficient high-concentration treatment and high-salt separation under sub-high-pressure conditions, meeting rigorous separation demands while significantly reducing operational energy consumption.
Specifications
| Membrane Model | Effective Area ft² (m²) | Feed Channel | Feed TDS mg/L | Concentrate TDS mg/L | Salt Separation Purity (%) |
|---|---|---|---|---|---|
| SP-HC1-400 / 350 | 400 (37) / 350 (33) | Standard / HDG | 240,000 | 280,000 | 98.5 |
| SP-HC2-400 / 350 | 400 (37) / 350 (33) | Standard / HDG | 250,000 | 290,000 | 98.5 |
| SP-HC3-400 / 350 | 400 (37) / 350 (33) | Standard / HDG | 95,000 | — | — |
| SP-HC4-400 / 350 | 400 (37) / 350 (33) | Standard / HDG | 105,000 | — | — |
Based on SVJPL's specialty concentration & purification process. HC1, HC2 and HC3: 25°C (77°F) Na₂SO₄ solution, pH 8. HC4: 25°C (77°F) NaCl solution, pH 8.

Performance figures are nominal values obtained under the standard test conditions stated with each table. Actual performance varies with feedwater chemistry, pretreatment, flux, recovery, temperature, pressure and operating practice. Individual element flow may vary from the nominal value. Specifications are subject to change without notice — request the current datasheet before specifying.
Operating & cleaning limits
- Maximum Operating Pressure 83 bar (1200 psi)
- Maximum Operating Temperature 45°C (113°F)
- Maximum Element Pressure Drop 1.0 bar (15 psi)
- pH Range Continuous Operation 3–10
- pH Range Short-Term Cleaning 1–12
- Maximum Feed SDI (SDI₁₅) 5.0
- Free Chlorine Tolerance < 0.1 ppm
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