Biomaterial Database

Enzymatic activity of activated sludge in biological treatment of wastewater containing dimethylamine, dimethylformamide and methylethylketone. 1984

H Sztajer, and B Lejczak, and M Pawlaczyk-Szpilowa

Activated sludge treating synthetic wastewater carrying dimethylamine (DMA), dimethylformamide (DMF) and methylethylketone (MEK) was examined. The compounds in question were found to affect the enzymatic activity of the activated sludge. Dehydrogenase activity was higher than in control activated sludge and stabilization of this activity was achieved on the twelfth day of the run. Alkaline phosphatase activity was lower than in the control sludge. No correlation between activity of the studied enzymes and biodegradation of DMA, DMF and MEK was observed.

UI	MeSH Term	Description	Entries
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D010088	Oxidoreductases	The class of all enzymes catalyzing oxidoreduction reactions. The substrate that is oxidized is regarded as a hydrogen donor. The systematic name is based on donor:acceptor oxidoreductase. The recommended name will be dehydrogenase, wherever this is possible; as an alternative, reductase can be used. Oxidase is only used in cases where O2 is the acceptor. (Enzyme Nomenclature, 1992, p9)	Dehydrogenases,Oxidases,Oxidoreductase,Reductases,Dehydrogenase,Oxidase,Reductase
D002074	Butanones	Derivatives of butanone, also known as methyl ethyl ketone (with structural formula CH3COC2H5).
D004123	Dimethylamines	Derivatives of dimethylamine (the structural formula CH3NHCH3).
D004126	Dimethylformamide	A formamide in which the amino hydrogens are replaced by methyl groups.	N,N-Dimethylformamide,N,N Dimethylformamide
D000469	Alkaline Phosphatase	An enzyme that catalyzes the conversion of an orthophosphoric monoester and water to an alcohol and orthophosphate. EC 3.1.3.1.
D012722	Sewage	Refuse liquid or waste matter carried off by sewers.	Sludge,Sludge Flocs
D014865	Waste Disposal, Fluid	The discarding or destroying of liquid waste products or their transformation into something useful or innocuous.	Disposal, Fluid Waste,Disposals, Fluid Waste,Fluid Waste Disposal,Fluid Waste Disposals,Waste Disposals, Fluid