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The cold adaptability of microorganisms with different carbon source in activated sludge treating synthetical wastewater.

Abstract：

:The cold adaptability of microorganisms with different carbon source under 5°C was studied in activated sludge for treating synthetical wastewater. Phospholipid fatty acid (PLFA) analysis indicated contents of unsaturated fatty acids in cell membrane at 5°C were 13.66% and 24.96% higher for glucose and sodium acetate source than that at 25°C. PLFA biomarkers showed more Gram-negative bacteria enriched than Gram-positive bacteria in low-temperature activated sludge. The Shannon-Wiener diversity analysis demonstrated glucose fed reactor in low temperature had lower PLFA diversity index (1.21-1.30) than that at 25°C and sodium acetate source was reverse (1.08-0.69). The 16S rRNA analysis manifested certain microbes were considerably suitable for existence under cold environment, most of which belong to Gram-negative bacteria.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Niu C,Geng J,Ren H,Ding L,Xu K

doi

10.1016/j.biortech.2012.06.110

subject

Has Abstract

pub_date

2012-11-01 00:00:00

pages

66-71

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(12)01024-3

journal_volume

123

pub_type

杂志文章

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