Quantity and quality benefits of in-service invasive cleaning of trunk mains

Sunny, Iftekhar; Husband, Stewart; Drake, Nick; Mckenzie, Kevan; Boxall, Joby

doi:https://doi.org/10.5194/dwes-10-45-2017

Articles | Volume 10, issue 2

https://doi.org/10.5194/dwes-10-45-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Computing and Control for the Water Industry, CCWI 2016

https://doi.org/10.5194/dwes-10-45-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 10, issue 2

Research article

|

06 Jul 2017

Research article |

| 06 Jul 2017

Quantity and quality benefits of in-service invasive cleaning of trunk mains

Iftekhar Sunny, Stewart Husband, Nick Drake, Kevan Mckenzie, and Joby Boxall

Download

Final revised paper (published on 06 Jul 2017)
Preprint (discussion started on 01 Feb 2017)

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

- Printer-friendly version

- Supplement

RC1: 'Reviewer comments', Anonymous Referee #1, 20 Feb 2017
- AC1: 'Response to anonymous reviewer', Iftekhar Zaman Sunny, 21 Apr 2017
RC2: 'Review of Quantity and Quality Benefits of in-service Cleaning of Trunk Mains by Sunny et al.', Thomas Walski, 22 Feb 2017
- AC2: 'Referees 2 comments_Tom Walski', Iftekhar Zaman Sunny, 21 Apr 2017
SC1: 'Nice research on effect of trunk main cleaning', Mirjam Blokker, 23 Feb 2017
- RC3: 'Review', Mirjam Blokker, 24 Feb 2017
- AC3: 'Referees 3 comments_Mirjam Blokker', Iftekhar Zaman Sunny, 21 Apr 2017
SC2: 'Review Comments', Zheng Wu, 28 Feb 2017
- AC4: 'Referee 4-Short review_Zheng Hu', Iftekhar Zaman Sunny, 21 Apr 2017

Short summary

This paper presents an assessment of quantity and quality performance of a trunk main cleaning using ice slurry pigging intervention. Hydraulic calibration showed a 7x roughness height reduction after ice slurry pigging, although turbidity response due to carefully imposed shear stress increase remained significant, indicating loose materials had not been fully removed from the pipe wall. Due to ongoing material accumulation, one-off intervention may not be sufficient to manage the quality risk.