Characterization of grey water, external environmental costs and cost-effective measures for reduced environmental impact
Research Project, 2022 – 2024

The project aims to:
i) map the use of chemicals on board ships and sample different sub-flows of greywater on ships operating in the Baltic Sea.
ii) analyse the greywater with regard to chemicals and nutrients.
iii) use life cycle assessment (LCA) and willingness-to-pay studies to determine the external costs caused by discharges of chemicals and nutrients due to deterioration of the marine environment.
iv) develop installation, investment and operating costs for different greywater treatment technologies
v) assess whether requirements for the treatment of grey water are a cost-effective measure in comparison with requirements for the treatment of other emissions from shipping

Participants

Erik Ytreberg (contact)

Chalmers, Mechanics and Maritime Sciences (M2), Maritime Studies

Ida-Maja Hassellöv

Chalmers, Mechanics and Maritime Sciences (M2), Maritime Studies

Jenette Mujingni

Chalmers, Mechanics and Maritime Sciences (M2), Maritime Studies

Kent Salo

Chalmers, Mechanics and Maritime Sciences (M2), Maritime Studies

Funding

Swedish Transport Agency

Funding Chalmers participation during 2022–2024

The Swedish Agency for Marine and Water Management

Funding Chalmers participation during 2022–2024

Related Areas of Advance and Infrastructure

Sustainable development

Driving Forces

Transport

Areas of Advance

Publications

More information

Latest update

6/26/2025