Registration Dossier
Registration Dossier
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EC number: 208-046-5 | CAS number: 506-59-2
Biodegradation in water: screening tests
Administrative data
Link to relevant study record(s)
Description of key information
According to test results the test substance can be declared as readily biodegradable.
Key value for chemical safety assessment
- Biodegradation in water:
- readily biodegradable
Additional information
Activated sludge was used as inoculum in an experiment which was published by National Institute of Technology and Evaluation (1975). Under aerobic conditions a BOD (NH3) of 88 % degradation was observed within 4 weeks and thus the test substance dimethylamine is stated to be readily biodegradable.
In an experiment by Hongwei, Zhanpeng, and Shaoqi (2006) the anaerobic biodegradability of nitrogenous compounds by common microorganisms in a wastewater treatment plant was investigated. As inoculum anaerobic sludge form digester tanks of a municipal STP in Beijing was chosen. The contact time was 50 days and the initial test substance concentration 100 mg/L, based on TOC. Dimethylamine was found to be readily biodegradable.
In another study where activated sludge and high purity oxygen – activated sludge were used as inoculum. Dimethylamine was removed consistently, averaging 81 and > 98 % during 4 month observations. The study was published by Sedlak, Deeb, Hawley, Mitch, Durbin, Mowbray, and Carr (2004).
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