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Welcome to Cluster© ARPro 2024 – V1.5
May 24, Analysis of The Daily Reports Submissions V1.0
1. Executive Summary
- Max TSE Output: 479 m³ (May 1)
- Min TSE Output: 345 m³ (May 19)
- Average TSE Output: 431.26 m³
- Shortage Days: May 14, 19, 20, 22, 26
Executive Summary
The Muscat Bay Sewage Treatment Plant (STP) encountered several operational challenges in May 2024, revealing significant discrepancies between actual and design performance. This section outlines key findings, identifies root causes of underperformance, and provides actionable recommendations aimed at improving operational efficiency and achieving the design capacity of 750 m³/day.
Key Findings
- Plant Design Capacity: 750 m3/d
- Average TSE Water Output: 431.26 m³/day, well below the design capacity of 750 m³/day.
- Maximum TSE Water Output: 479 m³ on May 1, 2024.
- Minimum TSE Water Output: 345 m³ on May 19, 2024.
- Inlet Sewage Volume: Varied significantly, impacting production consistency.
Major Issues
- Maintenance Discrepancies: Particularly on Membrane 2, leading to frequent shutdowns.
- Reporting Inconsistencies: Missing daily reports for May 3, 28, 29, and 30.
- Frequent Shutdowns: Due to low levels in the equalization tank, often during night shifts.
Data Analysis
- TSE Water Output and Inlet Sewage Volume Trends:
- The chart below shows the daily trends of TSE water output and inlet sewage volume for May 2024. Significant fluctuations are evident, particularly around mid-May, affecting the plant's ability to maintain steady production.
- The red dashed line indicates the plant's design capacity of 750 m³/day, highlighting how far the actual performance is from the target.
Recommendations
- Immediate Actions:
- Conduct comprehensive maintenance for Membrane 2.
- Install automated monitoring systems for the equalization tank to prevent low water level shutdowns.
- Mid-term Actions:
- Synchronize maintenance schedules for all membranes to ensure balanced operation.
- Enhance operator monitoring protocols, especially for night shifts.
- Long-term Actions:
- Implement continuous improvement programs using plant Design Operation Manual methodologies.
- Regularly train operators on best practices and accountability.
2. Introduction
This report aims to provide a comprehensive analysis of the operational performance of the Muscat Bay STP for May 2024. The purpose is to identify the root causes of underperformance, analyze key metrics, and propose actionable recommendations to enhance the plant's efficiency and reliability.
- Facility Description:
- Capacity: 750 m³/day
- Design Flow Rate: 31.25 m³/hr
- Technology: Membrane Bioreactor (MBR)
- Objectives:
- Achieve the design capacity of 750 m³/day.
- Maintain high treatment quality.
- Ensure consistent operational efficiency.
3. Daily Operations Summary
The daily operational data for May 2024 revealed several critical performance metrics:
- Total Production:
- Average TSE Water Output: 431.26 m³/day
- Maximum TSE Water Output: 479 m³ on May 1, 2024
- Minimum TSE Water Output: 345 m³ on May 19, 2024
- Inlet Sewage Volume:
- Varied significantly throughout the month.
- Maximum Inlet Sewage Volume: 513 m³ on May 2, 2024
- Minimum Inlet Sewage Volume: 345 m³ on May 19, 2024
- Key Metrics:
- Chemical Oxygen Demand (COD): Variability observed, indicating the need for consistent monitoring.
- pH Levels: Averaged around 6.8, within acceptable ranges.
- Mixed Liquor Suspended Solids (MLSS): Consistent at 9500 mg/L, indicating stable biological activity.
- Flow Rate Measurements:
- MBR-1 Treated Water: Average flow rate of 17.23 m³/hr
- MBR-2 Treated Water: Average flow rate of 9.23 m³/hr
- Influent Flow Rate: Averaged 24.22 m³/hr
Data Analysis
- TSE Water Output and Inlet Sewage Volume Trends:
- The chart above shows the daily trends of TSE water output and inlet sewage volume for May 2024. Significant fluctuations are evident, particularly around mid-May, affecting the plant's ability to maintain steady production.
- The red dashed line indicates the plant's design capacity of 750 m³/day, highlighting how far the actual performance is from the target.
4. Performance Analysis
Production Metrics:
- Total Production vs. Design Capacity:
- Actual production consistently below the design capacity of 750 m³/day.
- Average TSE output: 431.26 m³/day.
- Variability in production from Stream 1 and Stream 2.
- Flow Rates:
- Detailed analysis of influent and effluent flow rates.
- Fluctuations observed, especially mid-May, affecting stability.
Shutdown Analysis:
- Frequent shutdowns due to low levels in the equalization tank.
- Dates: May 14, 16, 20, 22, 25, and 27.
- Impact: Significant loss of operational time and production efficiency.
- Detailed logs with reasons and corrective actions recommended.
- Enhanced monitoring during night shifts to prevent recurrence.
Charts and Tables:
- Production Metrics Table:
Date | TSE Water Output (m³) | Inlet Sewage Volume (m³) | Production - Stream 1 (m³) | Production - Stream 2 (m³) |
1-May-24 | 479 | 423 | 360 | 181 |
2-May-24 | 483 | 513 | 377 | 183 |
3-May-24 | - | - | - | - |
4-May-24 | 452 | 503 | 365 | 181 |
5-May-24 | 452 | 503 | 371 | 186 |
6-May-24 | 483 | 503 | 365 | 181 |
7-May-24 | 462 | 391 | 371 | 186 |
8-May-24 | 469 | 460 | 374 | 195 |
9-May-24 | 410 | 427 | 333 | 146 |
10-May-24 | 410 | 425 | 325 | 164 |
11-May-24 | 443 | 517 | 365 | 181 |
12-May-24 | 454 | 450 | 366 | 177 |
13-May-24 | 468 | 433 | 365 | 181 |
14-May-24 | 382 | 396 | 304 | 154 |
15-May-24 | 403 | 388 | 318 | 162 |
16-May-24 | 432 | 432 | 340 | 175 |
17-May-24 | 433 | 505 | 348 | 178 |
18-May-24 | 466 | 453 | 371 | 184 |
19-May-24 | 345 | 382 | 323 | 161 |
20-May-24 | 369 | 346 | 244 | 126 |
21-May-24 | 426 | 465 | 336 | 173 |
22-May-24 | 376 | 392 | 314 | 157 |
23-May-24 | 457 | 493 | 363 | 206 |
24-May-24 | 462 | 429 | 368 | 159 |
25-May-24 | 445 | 487 | 363 | 174 |
26-May-24 | 358 | 378 | 299 | 140 |
27-May-24 | 405 | 454 | 333 | 145 |
- Shutdown Analysis Table:
Date | Shutdown Time | Reason | Action Taken |
14-May-24 | 05:35 AM | Low water level in the equalization tank | Restarted at 08:30 AM |
16-May-24 | 02:40 AM | Low water level in the equalization tank | Restarted at 06:00 AM |
20-May-24 | 04:20 AM | Low water level in the equalization tank | Restarted at 07:15 AM |
22-May-24 | 03:55 AM | Low water level in the equalization tank | Restarted at 07:00 AM |
25-May-24 | 05:10 AM | Low water level in the equalization tank | Restarted at 08:45 AM |
27-May-24 | 06:00 AM | Low water level in the equalization tank | Restarted at 09:30 AM |
5. Maintenance Analysis
Scheduled Maintenance:
- Overview:
- Major cleaning and PPM performed on Membrane 1.
- Membrane 2 lacked similar attention, contributing to shutdowns.
- Discrepancies:
- Maintenance activities not uniformly documented.
- Recommendations for synchronized schedules.
Unplanned Maintenance:
- Log of Actions:
- Detailed log of unexpected maintenance actions and outcomes.
- Predictive Maintenance:
- Insights from predictive tools used to recommend proactive measures.
Inventory:
- Critical Spares:
- Record of critical spare parts, stock levels, and reorder schedules.
Charts and Tables:
- Maintenance Log Table:
Date | Equipment | Issue Identified | Action Taken | Outcome |
10-May-24 | Membrane 2 | Clogging | Backwashing and cleaning | Improved flow rate |
15-May-24 | Blower 1 | Low pressure | Replaced filter if required | Normalized pressure |
20-May-24 | Pump 3 | Leakage | Seal replacement | No more leaks |
- Predictive Maintenance Findings Table:
Equipment | Monitored Parameters | Predictive Findings | Recommended Actions |
Membrane 1 | TMP, Flow Rate | Decreasing flow rate, increasing TMP | Schedule deep cleaning |
Blower 2 | Pressure, Vibration | High vibration levels | Inspect for bearing wear |
6. Reporting and Data Integrity
Reporting Inconsistencies:
- Missing Reports:
- Reports missing on May 3, 28, 29, and 30.
- Reasons for non-compliance and steps to ensure future consistency.
- Data Validation:
- Implementation of automated systems to ensure complete and accurate data reporting.
Charts and Tables:
- Missing Reports Table:
Date | Reason for Missing Report | Corrective Action |
3-May-24 | Operator oversight | Implement automated reminder systems |
28-May-24 | Technical issue with logging software | Conduct training for handling software |
7. Operational Improvements
Immediate Actions (0-1 month):
- Maintenance:
- Comprehensive cleaning and maintenance for Membrane 2.
- Monitoring:
- Install automated systems for real-time surveillance of the equalization tank.
- Procedures:
- Stricter protocols for operator activities during night shifts.
Mid-term Actions (1-3 months):
- Maintenance:
- Synchronize maintenance schedules for all membranes.
- Training:
- Rigorous training programs for operators on best practices and emergency responses.
Long-term Actions (3-6 months):
- Process Improvement:
- Use Lean and Six Sigma methodologies for operational efficiency.
- Technology Upgrade:
- Upgrade system technology for predictive maintenance and enhanced data processing.
Charts and Tables:
- Operational Improvement Plan Table:
Action | Timeframe | Responsible Party | Expected Outcome |
Comprehensive maintenance for Membrane 2 | Immediate (0-1 month) | Maintenance Team | Improved performance, fewer shutdowns |
Install automated monitoring systems | Immediate (0-1 month) | Technical Team | Real-time monitoring, reduced shutdowns |
Synchronize maintenance schedules | Mid-term (1-3 months) | Maintenance Team | Consistent operation, balanced performance |
Rigorous training programs | Mid-term (1-3 months) | HR and Technical Teams | Enhanced operator skills, reduced errors |
Use Lean and Six Sigma methodologies | Long-term (3-6 months) | Process Improvement Team | Increased efficiency, reduced waste |
Upgrade system technology | Long-term (3-6 months) | IT and Technical Teams | Enhanced data processing, predictive maintenance |
8. Recommendations
Inflow Management:
- Implement advanced systems for balancing and equalization tanks to manage fluctuations and ensure a steady inflow rate.
Membrane Performance:
- Conduct regular maintenance and explore advanced technologies to enhance membrane efficiency and longevity.
Monitoring and Reporting:
- Implement real-time monitoring systems for critical data points to ensure comprehensive and accurate daily reporting.
Maintenance:
- Establish a robust preventive maintenance schedule and utilize predictive maintenance tools to anticipate and prevent issues before they occur.
Benchmarking and Compliance:
- Measure plant performance against international standards for MBR technology and ensure compliance with regulatory requirements.
- Recommendations Implementation Plan:
Recommendation | Responsible Party | Timeframe | Expected Benefits |
Advanced inflow management systems | Technical Team | Immediate (0-1 month) | Steady inflow rate, reduced shutdowns |
Regular membrane maintenance | Maintenance Team | Continuous | Enhanced membrane efficiency, longer lifespan |
Real-time monitoring systems | IT and Technical Teams | Immediate (0-1 month) | Accurate data, improved reporting |
Robust preventive maintenance schedule | Maintenance Team | Continuous | Fewer breakdowns, improved reliability |
Benchmarking against standards | Quality Assurance Team | Long-term (3-6 months) | Compliance, improved performance |
9. Conclusion
The Muscat Bay STP's performance in May 2024 highlighted several areas needing improvement. By addressing the identified issues through immediate, mid-term, and long-term actions, the plant can significantly enhance its operational efficiency and achieve the design capacity of 750 m³/day. Continuous monitoring, training, and process improvements are crucial for sustainable operations and regulatory compliance.
Key Takeaways:
- Operational Efficiency: Immediate maintenance and monitoring improvements can drastically reduce shutdowns and enhance daily operations.
- Training and Procedures: Regular training and strict adherence to protocols ensure consistent performance and reduce human errors.
- Technological Upgrades: Implementing real-time monitoring and predictive maintenance tools can prevent issues and improve overall plant reliability.
Next Steps
- Implementation of Recommendations: Assign responsible parties and initiate actions as per the proposed timelines.
- Continuous Monitoring: Regularly review operational data and adjust strategies as needed.
- Training Programs: Schedule regular training sessions and update procedures based on new learnings and technological advancements.