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Q13932 - Drinking Water - Alum Application Case

Symptoms:

  • Having trouble controlling Settled Water Turbidity
  • Monthly chemical bill increasing, over budget year to date
  • Higher than historical backwash frequencies - loss of production
  • Operators are changing dosing frequently based on gut feel. 
  • No consensus on dosing strategy.

Plan:

Use WIMS to view Historic SCADA data from Hach Turbidity meters on Raw and Settled Water vs Alum usage entered manually by the Operators.

Savings achieved:

  • 10% savings on chemical usage (~10K/yr per MGD)
  • Better time management
  • Consistent settled water turbidities requires less frequent backwash:
    Increased capacity
    Less wasted finished water

Management by exception:

  • Dashboards allow easy monitoring for sustainability
  • Notification by email or mobile devices for fast response to potential problems

Everyone is Making Data-Driven Decisions:

  • Data clearly shows trends, issues and improvements
  • Data provides visibility
  • Data used to communicate more effectively
  • Everyone knows what the goal is and how to achieve it

 

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Article Attachments
Drinking Water App Story - Alum Studyfinal-1.pptx

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Created on 8/14/2012 10:32 AM.
Last Modified on 8/14/2012 10:36 AM.
Last Modified by No Author Name Available!.
Article has been viewed 2341 times.
Rated 7 out of 10 based on 2 votes.
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