Exjobbsförslag våren 2021: Jämförelse mellan metoder för karakterisering av organiskt material i avloppsvatten

Master’s thesis proposal spring 2021
Comparison of methods for fractionation of organic matter in municipal wastewater

Background

Knowledge about the characteristics of the organic matter in raw municipal wastewater improves design, operation and mathematical modelling of physical-chemical and biological wastewater treatment methods. However, an evaluation and comparison of different methods for fractionation of soluble, colloidal and suspended organic matter and characterisation of their biodegradability in wastewater are lacking for Swedish conditions.

NSVA, a municipal association operating the water and wastewater works in seven municipalities in northwestern Scania, and RISE Research Institutes of Sweden have just started a research project to develop a real-time model based decision support tool for the Öresund Wastewater Treatment Plant (WWTP). One milestone in the project is to build a calibrated and validated a process model of the WWTP.

Aim

The main aim of this project is to evaluate and compare different methods for fractionation of soluble, colloidal and suspended organic matter and characterisation of their biodegradability in municipal wastewater.

Method

The fractionation of organic matter is performed by coagulation-flocculation and/or filtration. The biodegradability is analysed by chemical analyses and/or respirometry. The laboratory work is performed at the Öresund WWTP in Helsingborg.

Prerequisites

Previous experience of laboratory work is a prerequisite for the project.

When?

Spring 2021

Interested to perform this Master´s thesis?

Contact the one of the supervisors for the project.

Christoffer Wärff, PhD student, RISE Research Institutes of Sweden (christoffer.warff@rise.se)
David Gustavsson, research leader, Sweden Water Research (david.gustavsson@vasyd.se)
Michael Cimbritz, senior lecturer, Lund University (michael.cimbritz@chemeng.lth.se)
Tove Johansson, process engineer, NSVA (tove.johansson@nsva.se)