Microbial degradation of chelating agents used in detergents with special reference to nitrilotriacetic acid (NTA)
- Cite this article as:
- Egli, T., Bally, M. & Uetz, T. Biodegradation (1990) 1: 121. doi:10.1007/BF00058831
The extensive use of phosphate-based detergents and agricultural fertilizers is one of the main causes of the world-wide eutrophication of rivers and lakes. To ameliorate such problems partial or total substitution of phosphates in laundry detergents by synthetic, non-phosphorus containing complexing agents is practiced in several countries. The physiological, biochemical and ecological aspects of the microbial degradation of the complexing agents most frequently used, such as polyphosphates, aminopolycarboxylates (especially of nitrilotriacetic acid), and phosphonates are reviewed.
Key wordscomplexing agentsdetergent builderswastewater treatmentNTAEDTAphosphonates
Acridine orange direct counts
Sodium dodecylsulfate polyacrylamide gel electrophoresis