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CASE STUDY. NENAGH REGIONAL WATER SUPPLY PLANT. PUBLIC WATER SUPPLIES PERSPECTIVE. BOTTLED WATER USAGE in IRELAND = 0.3 million Litres / day NENAGH R.W.S.P. PRODUCTION = 7.5 million Litres / day NORTH TIPPERARY Co. Co. PRODUCTION = 26 million Litres / day.

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case study

CASE STUDY

NENAGH REGIONAL WATER

SUPPLY PLANT

public water supplies perspective
PUBLIC WATER SUPPLIESPERSPECTIVE
  • BOTTLED WATER USAGE in IRELAND

= 0.3 million Litres / day

  • NENAGH R.W.S.P. PRODUCTION

= 7.5 million Litres / day

  • NORTH TIPPERARY Co. Co. PRODUCTION

= 26 million Litres / day

slide5

NENAGH R.W.S.P.

COMMISSIONED - 1997

  • ISO9001 - 1998
  • HYGIENE MARK - 1999
  • Q – MARK - 2000
  • ISO14001 - 2003
  • E.T.P. - 2005
process chemicals
PROCESS CHEMICALS
  • SPECIFICATION (Food Grade, Conc., Tolerance)
  • CERTIFICATE OF ANALYSIS
  • CHEMICALS FOLDER
  • SUMMARY RECORD
  • TRACEABILITY
process control
PROCESS CONTROL

CHEMICAL DOSING

- 7 CHEMICALS

- VERIFICATION

- DAILY

clarification filtration
CLARIFICATION & FILTRATION
  • CLARIFIERS

- 3 x 500 M3 Tanks

- Upward Flow Rate (Max.) = 1.8 M/Hr.

  • FILTERS

- 3 x R.G. Sand Filters

- Filtration Rate (Max.) = 3.9 M/Hr.

post filtration
POST - FILTRATION
  • CHLORINE DIOXIDE - Taste
  • CHLORINATION - T.H.M.
  • FLUORIDATION
  • PHOSPHORIC ACID - Enhanced Coagulation
inspection testing
INSPECTION & TESTING
  • SAMPLING PLAN

- SOURCE WATER

- SETTLED WATER

- FILTERED WATER

- FINAL WATER

continual improvement
Continual Improvement
  • Key Performance Indicators (K.P.I.)

- Process

- Quality

- Cost

- Environmental

- External Audit Results ( eg. H-Mark Score)

issues
Issues
  • Process Chemicals - data
  • CAR’s - review
  • Paperwork - volume
  • Design- practical
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