[Isolation of PVA-degrading symbiotic bacteria and examination of degradation characters].
From printing and dyeing actived sludge, PVA- degrading symbiotic bacteria was isolated. The symbiotic bacteria is composed of B1 and B2. During PVA biodegradation, B1 produces a certain growth factor for B2, B2 produces PVA-degrading enzyme. The PVA-degrading characters of the symbiotic bacteria are examined. When the concentration of PVA was 0.1, 0.5, 1g/L respectively,more than 80% of PVA was degradated after 7days. During the treatment of the dyeing and printing wastewater, when the temperature was 30 degree C ,the removal of COD(Cr) was 69.75%, the proper treating time was 12h.
Chen
Zhao-qiong
ZQ
Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China.
Liao
Yin-zhang
YZ
Li
Xu-dong
XD
Yang
Jun-shi
JS
D001419:Bacteria / Q000302:isolation & purification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D007220:Industrial Waste; D011142:Polyvinyl Alcohol / Q000378:metabolism*; D013559:Symbiosis; D014865:Waste Disposal, Fluid / Q000379:methods*; D014874:Water Pollutants, Chemical / Q000378:metabolism*
D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D011142:Polyvinyl Alcohol