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Filter backwash automation

Automatically initiates and monitors filter backwash cycles based on differential pressure thresholds and turbidity levels, optimizing filtration efficiency while minimizing water waste and ensuring regulatory compliance.

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Workflow Trigger

Differential pressure across filter exceeds predetermined threshold or turbidity readings indicate declining filter performance

Visual Flow

Each node represents an automated step. Connections show how data and decisions move through the workflow.

Step-by-Step Breakdown

Detailed explanation of each automated stage in the workflow.

  1. 1
    Trigger

    Monitor Filter Performance Parameters

    SCADA system continuously monitors differential pressure, turbidity, and flow rate across filtration units. Triggers backwash sequence when thresholds are exceeded or scheduled maintenance interval is reached.

    SCADA systemsPI System
  2. 2
    Action

    Initiate Pre-Backwash Sequence

    Automatically isolates the filter from main treatment flow and drains to appropriate level. Logs filter performance data and calculates optimal backwash duration based on accumulated particulate load.

    SCADA systemsWonderware
  3. 3
    Decision

    Evaluate Backwash Water Quality

    Analyzes source water quality parameters to determine if backwash water meets reuse criteria. Routes water to either recovery system or waste stream based on turbidity and chemical content.

    LIMSPI System
  4. 4
    Action

    Execute Automated Backwash Cycle

    Performs reverse flow backwash with optimized flow rates and duration. Monitors backwash water clarity in real-time to determine cycle completion.

    SCADA systemsHMI software
  5. 5
    Action

    Conduct Filter Integrity Assessment

    Runs post-backwash diagnostic tests including pressure drop verification and initial filtrate quality check. Updates filter performance history in asset management system.

    PI SystemMaximo asset management
  6. 6
    Action

    Return Filter to Service

    Gradually brings filter back online with controlled flow ramp-up. Continuously monitors initial effluent quality to ensure proper filter bed settlement before full operation.

    SCADA systemsWonderware
  7. 7
    Output

    Generate Backwash Completion Report

    Creates automated compliance documentation including water usage, waste volumes, and filter performance metrics. Schedules next maintenance interval based on predictive algorithms.

    LIMSMaximo asset management

Outputs

  • Filter restored to optimal performance
  • Backwash water usage and waste volume data
  • Regulatory compliance documentation
  • Updated filter maintenance schedule

Key Metrics

  • Filter differential pressure reduction percentage
  • Backwash water recovery rate
  • Filter cycle runtime extension
  • Regulatory compliance score

Tools & Integrations

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