RO Membrane for High TDS Water
Membrane Model: 1812/2012/2812/3012/3013
Diaphragm pore size: 0.0001um
Salt rejection rate: 95-98%
Operating temperature: 5-40℃
PH range: 2-11
Max. Pressure Drop of Single Membrane: 10psi (0.07Mpa)
RO Membrane for High TDS Water: Turn Hard Water into Pure Water
TDS of water quality refers to the content of total dissolved solids. TDS is the sum of inorganic salts and organic matter dissolved in water, usually measured in milligrams per liter (mg/L) or millisiemens per centimeter (mS/cm). High TDS values usually indicate that the content of dissolved solids and salt components in water is high, while low TDS values indicate that the water quality is relatively pure. The determination of the TDS value is very important for monitoring the water quality of drinking water and water treatment processes.
The RO membrane for high TDS water is specially designed for areas with high TDS water quality and can directly replace the RO membrane of the same size in home water purifiers.
Generally speaking, water quality can be described as having TDS values within the following ranges:
- Good quality drinking water: <300 mg/L
- Good drinking water: 300-600 mg/L
- Acceptable drinking water: 600-900 mg/L
- Restricted drinking water: 900-1200 mg/L
- Unsuitable drinking water: >1200 mg/L
TDS after RO membrane is usually reduced to about 10-50 mg/L. The RO membrane is a highly efficient water treatment technology that can effectively remove dissolved solids and impurities in water and provide relatively pure water quality. Therefore, RO membrane is widely used in drinking water treatment and other fields to provide high-quality water sources.
Core advantages
| 🔑 Key Feature | 📌 Our Membrane | 📌 Standard RO Membrane |
|---|---|---|
| Max TDS Handling Capacity | Up to 1200 mg/L | ≤ 600 mg/L |
| Stable Desalination Rate | 97% | 95% |
| Wastewater Ratio | 1:1 (low drain) | 1:3 (high drain) |
| PH Tolerance (Cleaning) | 2-11 | 3-9 |
| Food-Grade Material | ✅ FDA-certified | ❌ Basic plastic |
High TDS RO Membrane Specifications
| Model |
1810 - 50g 1812 - 50g |
1810 - 75g 1812 - 75g |
1810 - 100g 2012 - 100g |
2012 - 125g | 2012 - 150g | 2012 - 200g | |
| Performance | Stable Desalination % | 97 | |||||
| Min. Desalination % | 96 | ||||||
| Mean Permeable Flow GPD (L/d) | 50 (204) | 75 (281) | 100 (380) | 125 (478) | 150 (567.75) | 200(760) | |
| Active Film Area ft2(m2) | 3.5 (0.32) | 4.2 (0.38) | 5.0 (0.46) | 5.0 (0.50) | 6.0 (0.8) | 10.33 (0.96) | |
| Test Conditions | Pressure | 65psi (0.45Mpa) | |||||
| Water Temp. | 25℃ | ||||||
| Concentration(NaCl) | 500 ppm | ||||||
| Water PH | 6.5 to 7.5 | ||||||
| Recovery Rate % | 15 | ||||||
| Operating Conditions | Max. Operating Pressure | 300psi (2.0Mpa) | |||||
| Max. Feed Water Temp. | 45℃ | ||||||
| Max. Feed Water Silt Density Index (SDI) | 5 | ||||||
| Feed Water Chlorine Tolerance | < 0.1 mg/l | ||||||
| Feed Water PH Range, Continuous Operation | 3 to 10 | ||||||
| Feed Water PH Range, Short-Term Cleaning | 2 to 11 | ||||||
| Max. Pressure Drop of Single Membrane | 10psi (0.07Mpa) | ||||||
features in details
Reverse osmosis membrane original piece
low wastewater ratio, high desalination rate, effective removal of viruses and bacteria
Food-grade sealing ring
Food-grade sealing ring fits tightly to prevent water leakage.
Sealed plug
Sealed from outside to inside to ensure filtration accuracy and smooth water flow, extending service life
FAQ
What TDS level requires a high TDS RO membrane?
A: Use when feed water TDS exceeds 600 mg/L (e.g., well water, coastal areas, or industrial runoff). For TDS > 1200 mg/L, combine with a pre-treatment system (e.g., water softener).
How long does the membrane last in high TDS water?
A: 18-24 months under proper maintenance (vs. 24-36 months in low TDS water). Regular cleaning (every 3-6 months) extends lifespan.
What pre-filters are recommended for high TDS water?
A: Install a sediment filter (5μm) + activated carbon block + water softener (if TDS > 900 mg/L) to protect the RO membrane.
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