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Environmentally friendly cleaners

Topic: 
WASTEWATER--TREATMENT
Author: 
Schwartz, Stephen M.
Publisher/Date: 
1998
Note: 
Photocopied from Wastewater technology showcase - Vol. I - no. 3 (Fall 1998).
Summary: 
Tests show products with biologically active microbes or enzymes effective at cleaning oil-based stains on concrete parking lots.
Additional Author: 
Chandra, Sanjay.