Case Study: Our integrated hydrolysis acidification-AAO-MBR system at Tianjin Petrochemical Park achieves >98% ammonia removal and >95% heavy metal removal with 8+ years of reliable operation.
Industrial Wastewater Excellence: Advanced MBR Achieves >98% Ammonia Removal for 8+ Years in Tianjin Petrochemical Park
Executive Summary: Setting New Standards for Petrochemical Wastewater Treatment
At Tianjin Petrochemical Park – serving petroleum refining, fine chemicals, and bio-pharmaceuticals – we confronted complex wastewater containing high ammonia (39.3 mg/L), recalcitrant organics, and heavy metals. Our integrated hydrolysis acidification-AAO-MBR system not only exceeded strict Grade A standards but has maintained >98% ammonia removal efficiency through 8+ years of stable operation, while expanding capacity by +12,000 m³/day to support continuous park growth.
The Challenge: Mastering Complex Multi-Industry Wastewater
Technical Complexities
🏭 Diverse Contaminant Profile: Simultaneously addressing ammonia (39.3 mg/L), recalcitrant organics, and heavy metals
🎯 Stringent Compliance Requirements: Needing to consistently exceed China’s strict Grade A discharge standards
🔬 Variable Wastewater Characteristics: Fluctuating loads from multiple industrial processes
Operational Demands
📈 Capacity Expansion Needs: Required +12,000 m³/day additional treatment capacity
🛡️ Long-Term Reliability: Solution needed to deliver consistent performance over decades
🌱 Environmental Responsibility: Contributing to broader water quality improvement goals
Our Multi-Stage Treatment Solution
Integrated Process Design
🔄 Hydrolysis Acidification Stage: Specialized pretreatment breaking down recalcitrant organic compounds into biodegradable forms
🦠 AAO Biological Process: Advanced anaerobic-anoxic-oxic system achieving comprehensive nutrient removal and biological treatment
💧 MBR Membrane Separation: Final polishing stage ensuring superior solid-liquid separation and consistent effluent quality
Engineering Excellence
⚙️ Process Optimization: Each treatment stage precisely calibrated for petrochemical wastewater characteristics
🔧 Robust Equipment Selection: Components chosen for durability in corrosive industrial environments
📊 Smart Monitoring Systems: Continuous performance tracking and automated process adjustments
Measurable Outcomes: Quantifiable Performance & Impact
Exceptional Treatment Efficiency
📉 >98% Ammonia Removal consistently maintained
🔬 >95% Heavy Metal Removal achieving strict discharge standards
💧 Superior Effluent Quality reliably exceeding Grade A requirements
Proven Long-Term Reliability
🛡️ 8+ Years of Stable Operation without performance degradation
📊 Zero Major System Failures throughout operational history
🔧 Consistent Compliance through varying load conditions
Economic & Environmental Value
🏭 +12,000 m³/Day Capacity Expansion supporting park development
🌊 25% COD Reduction in local water bodies
💰 Optimized Operational Costs through efficient process design
Strategic Impact & Industry Leadership
Technical Achievement
🏆 Process Integration Mastery: Demonstrating sophisticated multi-stage treatment capability
📈 Performance Longevity: Proving sustainable long-term operation in demanding conditions
🔬 Contaminant Removal Expertise: Setting benchmarks for complex wastewater treatment
Environmental Leadership
🌱 Water Quality Improvement: Tangible contribution to regional environmental goals
🔄 Sustainable Operations: Model for industrial environmental responsibility
📜 Regulatory Excellence: Consistently exceeding compliance requirements
Conclusion: The Gold Standard for Industrial Wastewater Treatment
The Tianjin Petrochemical Park project represents the pinnacle of industrial wastewater treatment engineering – combining advanced process design, proven long-term reliability, and significant environmental impact. This case establishes a replicable benchmark for treating complex industrial wastewater while supporting sustainable industrial growth.
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