Loss of micro-organic proteins
Nature: Pollutants are doubly offensive, firstly as contaminants and secondly as lost sources of protein. With the use of bacteria, fungi and yeasts, sewage and waste effluents from such industries as paper mills can be converted into animal feed, as can waste newspapers.
Problem Type: D: Detailed problems
Date of last update 01.01.2000 – 00:00 CET