The City of Cape Town's Role in Creating a Better Life for All - MILE

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Features of the Dosing Control SystemThe heart of the systema mass-flow metering device, (coriolis principle)to very accurately measureo masso densityo temperature of the product flowing through it.This measuring device is integrated with:An accurate dosing pump with a variablespeed drive,In-stream probes to monitor pH of thewater during coagulation,Spectrophotometer readings giving theUV Absorbance levels of the waterPLC-based computer system with feedback control loopsEnables extremely accurate:Dosing control and monitoring systemInventory control (not easily achieved when dealing with large volumes of liquiddosed at relatively low rates)Data Acquisition, Control and Reporting System (DACAR TM )Gives plant managers invaluable information to help optimise the processes tomaintain consistent high water quality with lowest possible chemicalconsumptions, etc.
Benefits Derived from the Improved SystemTypical Chemical DosingScreenCONTINUOUS ONLINE GRAPHICAL DISPLAY FOR PROCESS CONTROLA user-friendly and real-time display of process variables:Online process viewing – simple menu systemImmediate indication of deviation from set-points (pH & dosage mg/l accurate to 2 decimal places)Live trendingOnline monitoring of active chemical ingredientResulting in timeous implementation of corrective action – ensuring consistent qualityPower failure to pumps – current dosage rate (sec/litre) for manual operation
Page 1 and 2: ACHIEVING THE BLUE DROPA City of Ca
Page 3 and 4: BULK SUPPLY SYSTEMThe City’s Bulk
Page 5 and 6: CHALLENGESRaw water quality - cost
Page 7 and 8: IMPLEMENTATION OF ISO 9001 QMSBegan
Page 9 and 10: DRINKING WATER QUALITY REQUIREMENTS
Page 11 and 12: WATER QUALITY MONITORINGProgrammeMo
Page 13 and 14: WATER QUALITY MONITORINGBiological
Page 15 and 16: WATER QUALITY MONITORINGScientific
Page 17 and 18: PROCESS CONTROLLER TRAININGProcess
Page 19 and 20: CHEMICAL USAGE AT WTPsVery stringen
Page 21: 11 th International GothenburgSympo
Page 26 and 27: Benefits Derived from the Improved
Page 28 and 29: Measured Effects and ImprovementsRE
Page 30 and 31: DISINFECTION CONTROL AND MONITORING
Page 32 and 33: STABILIZATION CHALLENGESoft, acidic
Page 34 and 35: DWQ INCIDENT MANAGEMENT PROTOCOL
Page 36 and 37: DWQ INCIDENT MANAGEMENT PROTOCOL
Page 38 and 39: WATER TREATMENT PLANTSSTEENBRAS WTP
Page 40: ASSET MANAGEMENTThe City of Cape To
Page 43 and 44: ASSET MANAGEMENTAsset Management Ph
Page 45 and 46: WATER SAFETY PLANNINGCITY OF CAPE T
Page 47 and 48: YEAR OFASSESSMENTBLUE DROP ASSESSME
Page 49: Mpharu HloyiT: 021 684 1000M: 083 6

The City of Cape Town's Role in Creating a Better Life for All - MILE

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