𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Economic study of the effect of municipal sewer surcharges on industrial wastes and water usage

✍ Scribed by Elliott, Ralph D.


Book ID
119735627
Publisher
American Geophysical Union
Year
1973
Tongue
English
Weight
801 KB
Volume
9
Category
Article
ISSN
0043-1397

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The effect on barley growth of humic substances extracted from municipal wastes with different degree of stability was studied. This effect was compared with that of the humic substances extracted from organic materials used in industry to obtain humic acids (peat and leonardite). The humic substanc