CT-CENSE Distribution system case study (PDF 158 KB)

Censar Technologies Case Study ClearCense Colour and Turbidity Monitoring System Monitoring of Drinking Water Colour and Turbidity in the Distribution Network Challenge The underground pipeline assets of a water company represent a huge financial investment. Maintaining this infrastructure also represents significant challenges, one of which is to ensure a clean supply of drinking water to all of its customers. The standards of water quality are enforced by the DWI, and whilst a high standard of water quality is consistently attained by the water companies, discolouration events do occur. In particular, these problems are often intermittent and are of a frequency of occurrence which may be unacceptable to consumers. These occurrences can be difficult to capture by conventional water sampling techniques. Most water companies have embarked on a long term programme to refurbish the network and require data for their Pre- and Post- Rehabilitation Assessment (PPRA) Programme. Solution On-line continuous monitoring of Colour and Turbidity offers the most promising approach. Until now suitable equipment has not been available, this is no longer the case. Censar Technologies have introduced the unique ClearCense Colour and Turbidity monitor, specifically designed for network distribution monitoring. The shaft version can be installed directly into a pipe under pressure via a gate or saddle valve. For monitoring closer to the consumer’s tap a flexi shaft unit with an adaptor is available for use in consumer boundary boxes. The system provides continuous on-line monitoring, eliminating the uncertain interpretation of data from random, manual spot sampling. ClearCense devices have already been used to great effect in distribution networks and one water company, Yorkshire Water Services, is using the data gathered to support its case to the DWI for approval of rehabilitation funding. They have found that the overall cost of evaluating results has proved to be more cost effective than traditional techniques such as sectioning. The duty managers can monitor relevant data from installed devices in the network, this data can now be monitored remotely using SMS messaging. site 20.000.501.001.502.002.503.003.504.004.502/1/00 0:042/1/00 14:042/2/00 4:042/2/00 18:042/3/00 8:042/3/00 22:042/4/00 12:042/5/00 2:042/5/00 16:042/6/00 6:042/6/00 20:042/7/00 10:042/8/00 0:042/8/00 14:042/9/00 4:042/9/00 18:042/10/00 8:042/10/00 22:242/11/00 12:242/12/00 2:442/12/00 16:442/13/00 6:442/13/00 20:442/14/00 10:442/15/00 0:442/15/00 14:442/16/00 4:442/16/00 18:442/17/00 8:442/17/00 22:442/18/00 12:442/19/00 2:442/19/00 16:442/20/00 6:442/20/00 20:442/21/00 10:44DateNTU0.000.100.200.300.400.500.600.70HAZENturbidity/NTU colour/HAZENgraph 3 Benefits • Improved customer response • Ability to demonstrate due diligence to the Regulator • Faster event identification/location • Better understanding of the condition of installed assets For further information contact: . Censar Technologies, Suite G2, 6 Whittle Road Ferndown Industrial Estate, Wimborne, Dorset BH21 7RU UK Tel +44(0)1202 850070 Fax +44(0)1202 890312 E-Mail: enquiries@censar.com Installed Colour and Turbidity Probe and GSM Data Logger Continuous data showing a Colour and Turbidity incident, not identifiable by conventional sampling