Hydraulic Modelling for Reliable Lift Station Design and Operation

Rahul R. Biswas*
Senior Planning Engineer, Christchurch City Council, Christchurch, New Zealand.
Periodicity:September - November'2017
DOI : https://doi.org/10.26634/jce.7.4.13805

Abstract

As part of the post-earthquake recovery, a major rebuild programme was launched and a number of new assets and systems (pressure sewers, vacuum sewers, lift stations, and enhanced gravity systems) were installed in different parts of the wastewater network of Christchurch. As part of the rebuild works, 56 new lift stations were constructed in the sewer network to improve the performance of the earthquake-prone wastewater network. This paper will critically review the effectiveness of lift stations in a complex wastewater network. The paper will examine the importance of wastewater network hydraulic modelling to avoid some unusual challenges during lift station design and operations. The paper concludes that sewer network hydraulic modelling inputs are essential for lift station design. Simple theoretical calculation methods may pose some major challenges causing a lift station to fail to operate effectively resulting sewer overflow into the environment.

Keywords

Hydraulic Modelling, Lift Station Design, Lift Station Operation, Reliable Lift Station, Wastewater Network

How to Cite this Article?

Biswas,R,R. (2017). Hydraulic Modelling for Reliable Lift Station Design and Operation. i-manager's Journal on Civil Engineering, 7(4), 60-66. https://doi.org/10.26634/jce.7.4.13805

References

[1]. Biswas, R. R. (2017). Quantifying the Performance of a Post-earthquake, Post-rebuild Wastewater Network using Hydraulic Models. Indian Journal of Science and Technology, 10(36), 1-13. 1. Doi. 10.17485/ijst/2017/v 10i36/116944
[2]. Biswas, R. R. & Biswas, T. R. (2017). Testing the Performance of Pressure Sewer Systems to reduce Wastewater Overflow. Research Journal of Engineering and Technology. A & V Publications (in Press).
[3]. Christchurch City Council (CCC). (2005). Water and Sanitary Services Assessments. Retrieved from https://www. ccc.govt.nz/assets/Documents/The-Council/Plans- Strategies-Policies-Bylaws/Plans/Long-Term- Plan/WastewaterAssessment.pdf on October 2005.
[4]. Christchurch City Council (CCC). (2014). Waterways, Wetlands and Drainage Guide. Retrieved from https://ccc.govt.nz/environment/water/water-policy-andstrategy/ waterways-wetlands-and-drainage-guide/ on January, 2014.
[5]. Christchurch City Council (CCC). (2015). Wastewater Facts and Figures. Retrieved from https://ccc.govt.nz/ ser vices/water-and-drainage/wastewater/aboutwastewater/ facts-and-figures/ on March 2015.
[6]. Christchurch City Council (CCC). (2016). Infrastructure Design Standard (IDS). Retrieved from https://www.ccc. govtnz/consents-and-licences/construction- requirements/infrastructure-design-standards/downloadthe- ids/ on September 2016.
[7]. Christchurch City Council (CCC). (2017). Water and Sanitary Services Pre and Post-earthquake GIS Network Files.
[8]. Johnson, D. & O'Neill, E. (September, 2012). Using Hydraulic Models to aid the Earthquake Recovery. Water New Zealand Annual Conference, New Zealand, Retrieved from https://www.waternz.org.nz/Attachment?Action= Download&Attachment_id=888
[9]. Liu, M. (2016). Decision Support Framework for Postearthquake Restoration of Sewerage Pipelines and Systems. (Doctoral Dissertation, Civil Eng. Program, University of Canterbury, New Zealand).
[10]. Parsons, T. & Preston, T. (May, 2016). Christchurch city mega model - Magic or madness?, Water New Zealand Storm Water Conference, Nelson, NZ Retrieved from https://www.waternz.org.nz/Attachment? Action=Download&Attachment_id=1878
If you have access to this article please login to view the article or kindly login to purchase the article

Purchase Instant Access

Single Article

North Americas,UK,
Middle East,Europe
India Rest of world
USD EUR INR USD-ROW
Pdf 35 35 200 20
Online 35 35 200 15
Pdf & Online 35 35 400 25

Options for accessing this content:
  • If you would like institutional access to this content, please recommend the title to your librarian.
    Library Recommendation Form
  • If you already have i-manager's user account: Login above and proceed to purchase the article.
  • New Users: Please register, then proceed to purchase the article.