Question

what is sludge?

Don't spam​

Answer 1

Answer:

Sludge is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, wastewater treatment or on-site sanitation systems.

Answer 2

$\huge \purple{\fbox \red{\fbox\pink{\fbox\green{Answer: - }}}}$

Thick, soft, wet mud or a similar viscous mixture of liquid and solid components, especially the product of an industrial or refining process.