About WRc | Portfolio Programme | Help | Contact Us  
Portfolio Logo WRc
Home New Ideas New On Site New Starts Proposed
Research
Live
Research
Completed
Research
Your List
Search
Browse

Asset Maintenance
Asset Management
Benchmarking
Business Planning
Business Processes
Carbon Footprint
Carbon Management
Catchment Management
Climate Change
Competency
Customer Service
Data & Information
Data Management
Demand Management
Distribution Management
Drinking Water Quality
Emergency Planning
Energy
Energy Efficiency
Environmental Management
Environmental Policy & Legislation
Finance
Innovation
Instrumentation
Investment Planning
Leak Detection
Leakage
Metering
Metering & Charging
Monitoring
NCET
Odour Management
Operating Costs
Pipeline Materials
Real Time Control
Receiving Water Quality
Regulation
Resource Management
Risk Assessment
Risk Management
Sewerage
Sludge/Biosolids
Spatial Information
Standards/Regulation
Strategic Planning
Supply Demand Management
Technology
Technology Development
Underground Assets
Waste
Waste & Resource Management
Waste Management
Wastewater Treatment
Water & Wastewater
Water Distribution
Water Quality
Water Resources
Water Treatment
Water Treatment Waste
Water Use
WFD

Printer Friendly VersionSelected Information - Completed Research

CP256  Holistic Monitoring to Increase Security & Reduce Costs Water Treatment
Water treatment works use numerous on-line water quality measurements. Those used for control (e.g. chlorine or pH) are duplicated or triplicated to notionally improve reliability. Some used for monitoring, (e.g. metals), suffer poor reliability and expensive maintenance.

Relationships between water quality and chemical dose, (particularly pH and chlorine), could be better exploited to check for consistency between independent on-line measurements and to identify common-mode failures. E.g. comparing chlorine mass dose, (a low cost, but rarely employed on-line measurement), with free chlorine after disinfection highlights treatment effectiveness, contamination or calibration drift.

Using current technology, cross referencing a small number of on-line measurements can provide a highly secure, yet cost-effective, source of information for monitoring / control. This approach offers greater measurement reliability, at less cost than standard multiple measurements and is consistent with risk mitigation (through source to tap monitoring), embodied in Water Safety Plan initiatives from the WHO, Europe and the DWI.

This project will examine how technology for on-line monitoring can be best exploited to minimise costs / maximise security. The whole life costs and risks of alternative approaches will be evaluated and options evaluated at full scale.

Benefits

  • Increased treatment security, through on-line monitoring, consistent with Water Safety Plans' requirements.
  • Significantly reduced cost of monitoring.
  • Greater understanding of treatment processes, and hence operation, through better process data.
WRc's Portfolio Programme
Summary of the £1.5 million per annum research programme

More details...

About WRc | Portfolio Programme | Hot Topics | Help | Contact Us