Zero Liquid Discharge: Meeting Global Mandates Cost-Effectively
The only complete membrane solution for ZLD compliance—eliminating expensive thermal systems while achieving 99 percent plus water recovery
KEY BENEFITS
Cost Reduction: 80 percent lower CAPEX than thermal-only systems
Energy Efficiency: Membrane-based alternative to energy-intensive thermal
Compliance: Meet current and future ZLD regulations globally
Water Recovery: Up to 99 percent overall recovery rate
Why Current ZLD Solutions Fail
Inadequate Current Options
Industries are forced into impossible choices with existing technologies
Conventional Membranes
Limitation: Stop at about 100,000 mg/L concentration
Result: Inadequate for true ZLD—still requires expensive thermal processing
Problem: Large volumes of concentrated brine still need disposal
Thermal-Only Systems
High CAPEX: 5 times more expensive initial investment
High OPEX: 25–60 kWh/m³ energy consumption
Large Footprint: Massive evaporators and crystallizers required
Result: Effective but often economically prohibitive
The Dilemma
Cheap but Inadequate: Conventional membranes can't achieve ZLD
Effective but Expensive: Thermal systems work but cost five times more
Industry Impact: Companies face bankruptcy or non-compliance
Revolutionary Membrane-Based ZLD Platform
Complete Membrane-Based ZLD Process
1. Wastewater Pretreatment (remove fouling compounds and suspended solids)
2. SAMRO™ Primary Concentration (3,000 to 120,000 mg/L at 2 kWh/m³)
3. MBC™ Secondary Concentration (120,000 to 280,000 mg/L at 12 kWh/m³ permeate)
4. Minimal Crystallization/Evaporation (crystallization-ready concentration)
5. Solid Waste Disposal (dry solids suitable for secure landfill disposal)
Energy Consumption Breakdown Two-Stage Membrane Process
SAMRO™ Stage: 2 kWh/m³ (3,000 to 120,000 mg/L)
Key Point: Majority of water recovered at ultra-low energy
Recovery: About 90 percent of clean water recovered in this stage
MBC™ Stage: 12 kWh/m³ permeate (120,000 to 280,000 mg/L)
Final Concentration: Reduces brine volume to crystallization-ready levels
Recovery: Final water extraction before crystallization
To-Do: Calculate blended energy consumption for complete ZLD process based on water recovery ratios at each stage.
Revolutionary Advantages Cost Breakthrough
80 percent Lower CAPEX: Compared to thermal-only ZLD systems
Membrane-Based: Eliminates most expensive thermal energy requirements
Standard Equipment: Uses conventional RO membranes and pressure vessels
Modular Design: Scalable from pilot to full industrial scale
Performance Excellence
Final Concentration: 220–280 g/L TDS (crystallization-ready)
Water Recovery: Up to 99 percent overall recovery rate
Footprint: 70 percent smaller than conventional thermal ZLD
Reliability: Continuous operation with minimal downtime
ZLD Solutions Across Industries
Challenge
Ultrapure water production generates high-TDS waste streams
Strict environmental regulations in manufacturing locations
Need for water reuse to reduce operational costs
OSMOSYS Solution
Complete ZLD with water reuse for non-critical applications
Membrane-based system suitable for cleanroom environments
Modular design fits within existing facility constraints
Benefits
Regulatory compliance, cost savings, sustainability goals
Recovered water for cooling towers and general facility use
Reduced environmental footprint in sensitive locations
Challenge
Complex wastewater streams with varying composition
Multiple process streams requiring different treatment approaches
Strict discharge regulations and permit limits
OSMOSYS Solution
Adaptable membrane platform with OSMOSmart™ AI optimization
Handles feed variation through intelligent process control
Integrated approach for multiple waste streams
Benefits
Reliable compliance regardless of feed variations
Single platform for multiple waste streams
Predictive maintenance and optimization
Challenge
Flue gas desulfurization (FGD) wastewater disposal
High chloride content requiring selective removal
Large volumes requiring cost-effective treatment
OSMOSYS Solution
MBC™ concentration with selective chloride management
Integration with existing FGD systems
Eliminates need for expensive thermal evaporators
Benefits
Compliance with increasingly strict discharge limits
Significant cost reduction vs thermal alternatives
Reliable operation with minimal operator intervention
Challenge
Acid mine drainage and process water treatment
Multiple waste streams with varying metal content
Environmental liability and remediation requirements
OSMOSYS Solution
Integrated treatment with valuable metal recovery
Selective mineral recovery during ZLD process
Comprehensive approach to mining waste management
Benefits
Environmental compliance plus revenue from recovered metals
Reduced long-term environmental liability
Transform waste disposal cost into profit center
MLD: Flexible Compliance for Transitional Needs
When MLD Makes Sense
For applications where small liquid discharge volumes are acceptable
Higher Recovery Option
Recovery Range: 95–98 percent vs 99 percent plus for full ZLD
Lower Cost: Reduced crystallization equipment requirements
Flexibility: Can upgrade to full ZLD when regulations change
Permit Compliance: Meet specific discharge concentration limits
Transitional Strategy
Phased Implementation: Start with MLD, upgrade to ZLD later
Regulatory Evolution: Adapt as discharge limits become stricter
Economic Optimization: Balance compliance costs with discharge fees
Applications
Mining Operations: Interim solution during mine life
Chemical Plants: Meeting current permits while preparing for ZLD
Power Plants: Compliance during regulatory transition periods