Special geomembrane for salt lakes

Salt lake seepage prevention engineering is a key link in salt lake resource development. Its core lies in preventing brine leakage, ensuring efficient resource extraction, and avoiding pollution to the surrounding ecological environment. In terms of selecting seepage prevention materials of geomembrane, geotextile membranes with high corrosion resistance, high aging resistance, high tensile strength, and high puncture resistance should be used as the seepage prevention material.

Technical Difficulties：

1：Environmental protection and energy consumption pressures:

Salt lake lithium extraction requires a large amount of fresh water and energy, and some processes (such as solvent extraction and calcination) generate wastewater, exhaust gas, and waste residue, subjecting it to strict environmental requirements. In high-altitude areas, the infrastructure is weak, with high energy supply and transportation costs, which further increases the difficulty of technological implementation.

2：Geomembrane technology bottlenecks:

Geomembrane separation methods (such as nanofiltration and electrodialysis) are the mainstream processes, but high-performance membranes rely on imports, resulting in high costs and short lifespans. Membranes are susceptible to fouling and clogging, requiring frequent replacements, and are sensitive to brine salinity and impurity content, necessitating strict pretreatment, which increases process complexity and cost.

Special Geomembranes for Salt Lake Mine

1. Comparison with traditional geomembranes
   Geomembrane Tensile performance is improved by 20%, impact resistance by 60%, puncture resistance by 50%.
2. Additional Advantages
   Low friction coefficient (reduces construction wear);
   self-lubricating properties (extends service life).
3. Chemical Barrier
   Resist corrosion from high-concentration brine and ensure zero leakage for over 20 years.
4. Physical Protection
   Salt-resistant crystal puncture resistance, wind and sand wear resistance, suitable for extreme environments.
5. Stable and Durable
   Wide temperature range adaptability plus anti-ultraviolet aging, meeting the full life cycle requirements of salt lakes.
6. Çevresel Uyumluluk
   Meet the strict requirements of the ‘Environmental Protection Specifications for Salt Lake Brine Mineral Development’ (GB/T 38582-2020).
7. Safety Reliability
   Puncture-resistant, tear-resistant, and chemically corrosion-resistant, ensuring ‘zero leakage’ in extreme environments.
   08.Ultra-long Lifespan
   It has excellent wear resistance and anti-aging properties. And which are synchronized with the mine operation cycle, thus avoiding mid-term replacement.
8. Adapt to Complex Loads
   Resisting settlement, mechanical compaction, and temperature stress, its stability is far superior to traditional materials.