Biodegradability of [14C]methylcellulose by activated sludge.

Abstract:

:Three Methocel methylcellulose ethers of 1.9 degree of substitution with [14C]methyl labels were shown to be biodegradable using batch-type activated sludge tests. The maximum rate for conversion to 14CO2, attained after 1 week, was only 0.62 mg of methylcellulose/g of mixed liquor volatile solids per day. In 20 days, 55 to 73% of the radioactivity had been removed from solution as 14CO2, and the suspended solids contained 12 to 15% of the original radioactivity. Only 4% of the original methylcellulose appeared to be polymeric after the 20-day period. Thin-layer chromatography of supernatant liquid indicated at least two degradation products.

journal_name

Appl Environ Microbiol

authors

Blanchard FA,Takahashi IT,Alexander HC

doi

10.1128/AEM.32.4.557-560.1976

subject

Has Abstract

pub_date

1976-10-01 00:00:00

pages

557-60

issue

4

eissn

0099-2240

issn

1098-5336

journal_volume

32

pub_type

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