Mining Wastewater
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Mining operations frequently discharge water from dewatering operations or the mining process itself.
Mine operators face tightening discharge standards while regulators rapidly impose reuse requirements. These challenges are particularly acute where mine waters are high in both Total Suspended Solids (TSS)—comprised of abrasive coal particles—and Total Dissolved Solids (TDS), driving a need for robust, reliable pretreatment in schemes that typically include Reverse Osmosis (RO) to meet these standards.
Conventional methods often struggle with high energy consumption, complex maintenance, and inefficiencies in removing all impurities, making it difficult to meet modern environmental and regulatory standards.
Nanostone’s Unique Approach & Benefits
Our Ceramic Ultrafiltration Membranes provide an effective solution for mining wastewater treatment, addressing both quality and operational challenges.
- Simplified Treatment Scheme: Conventional approaches typically use multimedia filtration and polymeric UF membranes; Nanostone replaces both in a single-unit operation, simplifying the treatment process.
- Long-Lifetime Physical Barrier: Nanostone removes abrasive coal particles that lead to shortened PUF lifetimes and disrupt downstream RO operations.
- Robust Operation: With regulations driving the need for RO, Nanostone’s solution is ideal for regions with stringent reuse and Zero-Liquid Discharge (ZLD) standards.
Case Studies/Testimonials
For more details, visit Xiaojihan Coal Mine project page
Xiaojihan Coal Mine Case Study
- Challenge Overview:
The Xiaojihan Coal Mine faced issues with its existing PUF membrane system, including frequent fouling and high maintenance, which compromised treatment capacity. - Nanostone Solution:
Implementing the CM-151 ceramic ultrafiltration membrane system provided a robust, reliable solution that stabilized the downstream RO system and increased treatment capacity by 44%. - Benefits Achieved:
- Reduced maintenance needs due to fewer chemical cleanings.
- Improved system reliability and compliance with environmental regulations.
- Increased operational efficiency and extended membrane life.
For more details, visit Lithium Extraction in China’s Salt Lakes project page
Lithium Extraction in China’s Salt Lakes Case Study
- Challenge Overview:
The project required robust treatment of high TDS and TSS wastewater to support lithium extraction processes. - Nanostone Solution:
The CM-151 ceramic ultrafiltration membrane system was implemented to manage the harsh conditions and ensure high-quality feed water for downstream processes. - Benefits Achieved:
- Increased reliability and reduced maintenance requirements.
- Enhanced water quality, supporting efficient lithium extraction.
- Achieved compliance with stringent environmental regulations.