Sampling strategy, quantification, characterization and hazard potential assessment of greywater from ships in the Baltic Sea
Artikel i vetenskaplig tidskrift, 2024

Ship-generated greywater contains a variety of pollutants which, through various pathways, usually are discharged into the sea. To understand the seasonal variation in greywater volumes, the contaminant concentrations in, and the potential hazard of, ship-generated greywater streams, a four-phase strategy for sampling, characterization and hazard assessment of greywater was developed and implemented. Eight greywater streams, sampled from five ships, were characterized for selected pollutants. The metals Zn, Cu, Mn and the metalloid, As, collectively contributed 98 % to the Hazard Index. Laundry greywater had the highest average concentration of phosphorus (42 mg/l) while galley greywater had the highest average concentration of nitrogen (30 mg/l). The geometric means of COD-Cr, BOD5, TSS and P exceeded the IMO resolution MEPC 227(64) guideline values for sewage effluent from Advanced Wastewater Treatment Plants. The results establish the basis for and contribute to discussions on, the optimization of ship-generated greywater management and the establishment of potential regulatory strategies in the Baltic Region.

Contaminants

Analysis

Sample

Environment

Vessels

Baltic

Författare

Jenette Mujingni

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Erik Ytreberg

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Ida-Maja Hassellöv

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

G. B.M. Rathnamali

Göteborgs universitet

Martin Hassellöv

Göteborgs universitet

Kent Salo

Chalmers, Mekanik och maritima vetenskaper, Maritima studier

Marine Pollution Bulletin

0025-326X (ISSN) 1879-3363 (eISSN)

Vol. 208 116993

Ämneskategorier

Vattenteknik

Miljövetenskap

DOI

10.1016/j.marpolbul.2024.116993

Mer information

Senast uppdaterat

2024-10-07