Bioconversion of 2,4-diamino-6-nitrotoluene to a novel metabolite under anoxic and aerobic conditions
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Biotransformation of estrogens in nitrifying activated sludge under aerobic and alternating anoxic/aerobic conditions.
Natural and synthetic estrogens present in municipal wastewater can be biodegraded during treatment, particularly in activated sludge. The objective was to assess the extent of transformation of 17-beta-estradiol (E2) and 17-alpha-ethinylestradiol (EE2) by nitrifying activated sludge and evaluate potential relationships between availability of oxygen, nitrification rate, and estrogen removal. F...
متن کاملResponse of poly-phosphate accumulating organisms to free nitrous acid inhibition under anoxic and aerobic conditions.
The response of free nitrous acid (FNA)-adapted poly-phosphate accumulating organisms (PAOs) to FNA inhibition under aerobic and anoxic conditions was studied. Anoxic P-uptake was 1-6 times more sensitive to the inhibition compared to aerobic P-uptake. The aerobic nitrite reduction rate increased with FNA concentration, accompanied by an equivalent decrease in the oxygen uptake rate, suggesting...
متن کاملRemoval of carbamazepine and sulfamethoxazole by MBR under anoxic and aerobic conditions.
This study reveals for the first time that near-anoxic conditions (dissolved oxygen, DO=0.5 mg/L) can be a favorable operating regime for the removal of the persistent micropollutant carbamazepine by MBR treatment. The removal efficiencies of carbamazepine and sulfamethoxazole by an MBR were systematically examined and compared under near-anoxic (DO=0.5 mg/L) and aerobic (DO>2 mg/L) conditions....
متن کاملTransformation of 2-line ferrihydrite to 6-line ferrihydrite under oxic and anoxic conditions
Mineralogical transformations of 2-line ferrihydrite were studied under oxic and Fe-reducing conditions to establish the role, if any, of 6-line ferrihydrite (“well” organized ferrihydrite) in the reaction pathway and as a final product. In oxic experiments, concentrated suspensions (0.42 mol/L Fe in 0.1 mol/L NaClO4) of freshly synthesized 2-line ferrihydrite, with and without 3% Ni, were aged...
متن کاملwuthering heights and the concept of marality/a sociological study of the novel
to discuss my point, i have collected quite a number of articles, anthologies, and books about "wuthering heights" applying various ideas and theories to this fantastic story. hence, i have come to believe that gadamer and jauss are rightful when they claim that "the individaul human mind is the center and origin of all meaning," 3 that reading literature is a reader-oriented activity, that it ...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 1995
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.61.12.4209-4214.1995