sludge
US /slʌdʒ/
UK /slʌdʒ/

1.
slib, modder, slijk
thick, soft, wet mud or a similar viscous mixture of liquid and solid components, especially the product of an industrial or refining process.
:
•
The riverbed was covered in thick, black sludge.
De rivierbedding was bedekt met dikke, zwarte slib.
•
Waste water treatment plants produce a lot of sewage sludge.
Afvalwaterzuiveringsinstallaties produceren veel rioolslib.