An optimization based framework for design and retrofit of municipal wastewater treatment plants: Case study on side-stream nitrogen removal technologies

Hande Bozkurt, Alberto Quaglia, Krist Gernaey, Gürkan Sin

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Existing WWTPs need retrofitting due to several d iffe rent reasons such as: change in the wastewater flow and co mposition, change in the effluent limitat ions , as well as changes in the wastewater treatment trends. Specifically, increased nitrogen limitations in the regulations for the WWTP effluents gave rise to development of innovative nitrogen removal technologies mostly used for water strea ms resulting fro m sludge t reatment. In this study we propose a superstructure optimization concept based on mathematica l progra mming to manage the multi - criteria WWTP design /retrofit problem and generate novel and optimal network designs for domestic WWTPs. Alternative treatment te chnologies are represented in a superstructure; each of which is described by a generic model in ter ms of input - output mass balance . The superstructure is coupled with a database containing data for both performance and economics of the alternative technol ogies. The superstructure optimization proble m is formu lated as a Mixed Integer (Non)Linear Progra mming problem and solved in GAMS fo r diffe rent scenarios represented by different objective functions and constraint definitions. Finally, a case study is for mulated to perform a retrofit study addressing the nitrogen removal problem in order to highlight the use of the framework.
Original languageEnglish
Title of host publicationProceedings of 2nd IWA Specialized Conference on Eco-technologies for Sewage Treatment Plants
Number of pages4
Publication date2014
Publication statusPublished - 2014
Event2nd IWA Specialized Conference on Eco-technologies for Sewage Treatment Plants - Verona, Italy
Duration: 23 Jun 201425 Jun 2014

Conference

Conference2nd IWA Specialized Conference on Eco-technologies for Sewage Treatment Plants
CountryItaly
CityVerona
Period23/06/201425/06/2014

Keywords

  • Design
  • Modelling
  • Superstructure optimization
  • Uncertainty analysis
  • Wastewater treatment

Cite this

Bozkurt, H., Quaglia, A., Gernaey, K., & Sin, G. (2014). An optimization based framework for design and retrofit of municipal wastewater treatment plants: Case study on side-stream nitrogen removal technologies. In Proceedings of 2nd IWA Specialized Conference on Eco-technologies for Sewage Treatment Plants