[Efficiency and yeast community structure of oil-containing treatment system inoculated by different yeast strains complex wastewater].
Ten yeast stains were grouped and applied in pilot-scale sequencing batch reactors to treat oil-containing wastewater. The efficiency and stability of different reactors were discussed and yeast community structure was investigated by PCR-DGGE method. The results show: the group consisting of O2, G1 and W1 is markedly superior to others in efficiency and stability respects; the group absence of these 3 stains fails to form a system with high efficiency and good stability; O4 and G2 strains lead to turbid supernatant fluid and are eliminated from system step by step; the distribution of yeast cells in settlement sludge varies with different stains. When aeration is stopped, G1 deposits into lower layer but O2 or W1 distributes evenly.
Lü
Wen-zhou
WZ
Department of Environmental Engineering, College of Architectural Civil Engineering and Environment, Ningbo University, Ningbo 315211, China. luwenzhou@nbu.edu.cn
Liu
Ying
Y
Zhu
Jian-lin
JL
D001673:Biodegradation, Environmental; D019149:Bioreactors / Q000382:microbiology*; D005742:Gasoline / Q000032:analysis*; D011157:Population Dynamics; D014865:Waste Disposal, Fluid / Q000379:methods*; D015003:Yeasts / Q000145:classification / Q000254:growth & development / Q000378:metabolism*
D005742:Gasoline