Overview

The EcoGuardian™ Ballast Water Management System (BWMS) by HANLA IMS Co., Ltd. is engineered to comply with IMO and USCG regulations, ensuring the safe management and treatment of ballast water to prevent the spread of invasive aquatic species and protect marine ecosystems. The system incorporates filtration, electrochlorination during ballasting, and neutralization during de-ballasting processes.

1. System Overview (p.9-15)

• Ballasting Process:
  • Filters out large organisms and particles via an Auto Filter Unit (AFU).
  • Applies hypochlorous acid using the ElectroChlorination Unit (ECU).
  • TRO (Total Residual Oxidants) concentration is monitored and controlled via the TRO Sensor Unit (TSU).
• De-ballasting Process:
  • Neutralizes residual TRO with sodium thiosulfate through the Neutralization Unit (NEU).
  • Ensures compliance with Maximum Allowable Discharge Concentration (MADC) requirements.
• By-pass Process:
  • Manual operation is available during emergencies, with automatic alarms and event logging.
• A.P.Tk Process:
  • Special process considerations for After Peak Tank operations. Alarm and shutdown thresholds are set at 5% and 3%, respectively.
• Specifications:
  • Capacity: 130m³/h ~ 6,000m³/h.
  • Target TRO: 8 mg/L during ballasting.
  • Salinity and temperature requirements: ECU feed water ≥10 PSU and ≥10°C.
  • Power consumption varies by model, with a maximum of 1,032.7 kW for EG6000-Ex models.

2. System Components (p.16-20)

• AFU (Auto Filter Unit):
  • Removes large organisms and particles; includes an automatic backflushing system to prevent clogging.
• ECU (ElectroChlorination Unit):
  • Generates hypochlorous acid for disinfection during ballasting operations.
• NEU (Neutralization Unit):
  • Injects sodium thiosulfate to neutralize residual TRO during de-ballasting.
• TSU (TRO Sensor Unit):
  • Monitors TRO levels in real-time to adjust dosing and ensure compliance.
• Control System & Power Distribution:
  • Managed via the Main Control Panel (MCP) and optional Remote Control Panel (RCP).
  • Features include alarm management, data logging, and system monitoring through HMI interfaces.

3. Operation (p.21-36)

• Ballast Mode:
  • Sequential instructions for initiating and stopping the ballasting process, including low salinity operation via Salt Control Unit (SCU).
• De-ballast Mode:
  • Detailed procedures for neutralization and discharge, ensuring compliance with environmental regulations.
• By-pass Mode:
  • Manual override process available during emergencies, with safety alarms activated automatically.
• Maintenance Mode:
  • Enables manual operation of components for inspection and maintenance purposes.
• Screen Descriptions:
  • HMI provides comprehensive system status, alarm logs, and operational controls.

4. Alarms & Troubleshooting (p.36-46)

• Alarm Types:
  • Warnings and shutdowns are clearly defined, with criteria and corrective actions.
• Common Alarm Scenarios:
  • Includes flow deviations, hydrogen gas detection, temperature/pressure anomalies, and communication failures.
• Troubleshooting Guides:
  • Step-by-step instructions are provided for resolving system faults and alarms.

5. Maintenance (p.46-47)

• Safety Precautions:
  • Enforces electrical isolation, PPE use, and adherence to safe working procedures.
• Inspection Schedule:
  • Regular checks are mandated for filters, pumps, valves, and sensors to ensure optimal system performance.

Key Specifications (p.13-15)