Water quality prediction for environmental networks

Measurements of water quality are important for efficient operation of drinking water networks and assessing the quality of source waters upstream of water works intakes and below the outlet of waste water returns.  Within the drinking water network, water quality monitoring can ensure safe drinking water delivery to consumers, help the utility manage disinfectant levels and provide early warning of unexpected changes in water quality.   Similarly, for source waters, monitoring seasonal changes in water quality and early identification of unexpected changes can be used to optimize treatment processes in the water plant.  

Traditionally, water quality samples, both within the network and in the environment, have been collected infrequently (monthly or weekly) and significant changes in water quality could go undetected between samplings.  Continuous water quality monitoring is now becoming a practical alternative.  In the past decade, sensor platforms have evolved to provide affordable continuous monitoring of water quality.  

We build analytics to extract necessary information from these continuous monitoring data. Ongoing projects include:

  1. Multivariate analysis for early warning of water quality anomalies in drinking water (e.g., rapid disinfectant loss) and source waters (e.g., algae blooms).
  2. Realtime temporal and spatial predictions of water quality values within networks for forecasting water quality conditions.
  3. Integration of multiple sensor modalities including citizen-based observations and satellite imagery into predictive models of future system conditions.

We also work with sensor vendors and other software development efforts to custom water quality analytics for any situation.  A recent example is integration of the public domain CANARY event detection system into the IBM intelligent water platform (IOW).  



Potential use case

water quality

The Ganga basin covers ten states in India.

The India Central Pollution Control Board (CPCB) is planning to install a
"Real Time Water Quality Monitoring Network" across the basin.