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Q1 2024 Muscat Bay STP Performance Review

Date
Status

Q1 2024 Muscat Bay STP Performance Review

Introduction

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This report presents a comprehensive review of the performance of the Muscat Bay Sewage Treatment Plant (STP) for the first quarter of 2024. We provide a detailed analysis of the plant's operations, including monthly average outputs, comparative analysis over time, efficiency calculations, and considerations of the plant's design capacity. The report concludes with a brief discussion on power consumption analysis.

Monthly Comparison with Daily Average:

The average daily outputs of Treated Sewage Effluent (TSE-Irrigation) for each month are as follows:

  • January: Daily average TSE-Irrigation output = 328.96 cubic meters
  • February: Daily average TSE-Irrigation output = 293 cubic meters
  • March: Daily average TSE-Irrigation output = 461.29 cubic meters
  • April: Daily average TSE-Irrigation output = 465.30 cubic meters
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Analysis:

  • There is a noticeable increase in daily output from February to March, which is sustained into April, indicating a period of high operational output in the spring months.
  • January and February exhibit lower daily averages, suggesting an operational ramp-up at the year's start, with many shutdowns occurring due to electrical and other issues.

Time Period
Change in Output
Possible Explanation
December to January
Increase
Operations resume or escalate after the year-end
January to February
Decrease
Operational adjustments or external factors affecting production
February to March and April
Significant Increase
Enhanced operational capacity or increased demand for treated water

Detailed Efficiency Analysis:

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Each tanker trip contributes 20 cubic meters to the input.

TSE-Irrigation output is directly taken from your data.

Efficiency Calculations for Each Month

Presented below are the meticulously recalculated efficiency values, derived from the rectified total inputs and TSE-Irrigation outputs:

Below is a simplified representation of the monthly efficiency data:

Month
Total Input (m³)
TSE-Irrigation Output (m³)
Efficiency (%)
December
13,163
10,377
78.83
January
13,163
10,377
78.83
February
10,068
8,221
81.65
March
19,998
13,302
66.52
April
20,245
13,959
68.95
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  • Higher Efficiencies in Winter Months (December-January-February): These months show higher efficiencies, indicating that a larger percentage of the input water is being treated and utilized as TSE. February, in particular, shows the highest efficiency.
  • Decrease in Spring (March-April): A drop in efficiency can be seen starting in March and continuing into April, which could indicate various operational issues or changes in water quality or quantity being processed.

Plant Design Capacity Consideration:

The plant’s designed daily output is 750 cubic meters. This design capacity can be used to evaluate whether the plant is operating below, at, or above its designed capacity based on daily averages of output:

Month
Daily Average Output (m³)
December-January
~346
February
~294
March
~429
April
~465

Power Consumption Analysis

The Q1 2024 analysis of the Muscat Bay Sewage Treatment Plant focuses on correlating power consumption with treated sewage effluent production. Monitoring and optimizing energy usage is crucial for enhancing operational efficiency and sustainability.

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Data Collection:
  • Detailed monthly kWh consumption data is to be provided by OWATCO.
  • Estimated daily energy consumption ranges between 900 and 1,000 kWh, approximating a monthly consumption of around 30,000 kWh.

Calculation & Updated Monthly Energy Efficiency:

Month
Energy Efficiency (kWh/m³)
January
2.89
February
3.65
March
2.26
April
2.149

Efficiency Analysis and Insights:

  • Variability in energy efficiency correlates with operational adjustments and fluctuating TSE production levels.
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  • The highest energy consumption relative to output occurred in February, indicating the lowest efficiency. Conversely, April shows a significant improvement in efficiency, suggesting effective operational enhancements or increased TSE production.

Strategic Recommendations for Energy Management:

  • Operational Adjustments: Regularly review plant settings to optimize energy usage, especially during periods of low TSE production.
  • Technological Upgrades: Invest in more energy-efficient machinery and control systems to maintain high efficiency levels.
  • Energy Monitoring: Continue detailed tracking of energy consumption and production metrics to identify patterns and potential areas for further efficiency gains.
  • Staff Training and Awareness: Enhance training programs focused on energy conservation and efficient operational practices.

The detailed power consumption analysis highlights the importance of strategic energy management at Muscat Bay STP. By continuing to monitor, analyze, and optimize energy usage, the plant can achieve significant improvements in efficiency, resulting in operational cost savings and a reduced environmental footprint.