%0 Journal Article
%T Research on Polyhydroxyalkanoate Form a Key Aspect to Enhanced Biological Phosphorus Transformation<br>聚烃基烷酸转化对强化生物除磷影响研究
%A LIU Yan
%A XING Zhi_qiang
%A CHEN Yin_guang
%A ZHOU Qi
%A <br>刘燕
%A 行智强
%A 陈银广
%A 周琪
%J 环境科学
%D 2006
%I 
%X To investigate the influence of PHB and PHV formed on phosphorus(P) release,uptake and removal during enhanced biological phosphorus removal(EBPR),anaerobic/aerobic batch experiments were conducted with biomass acclimated with propionic to acetic acid carbon molar ratios of 0.5 and 2 on two sequencing batch reactors(SBR1 and(SBR2).) Statistically significant correlations between polyhydroxyalkanoate(PHA) quantity and form and P release/uptake and removal were observed(R~2>0.90).The regression coefficients showed that for biomass cultured with customizing wastewater P release and uptake were both a function of PHB but not of PHV,but higher P removal was largely because of PHV as the predominant type rather than PHV.For biomass cultured with different ratios of propionic to acetic acid,the SBR2 biomass synthesized and utilized more PHB and less PHV and showed higher net P removal(average increase of 16.69%) than SBR1.Thus acetate/propionate content of influent had a major influence on PHA type and quantity and determine phosphorus(P) release,uptake and removal.Accordingly,PHB and PHV transformations should be taken into account as key aspect for optimizing EBPR.
%K enhanced biological phosphorus removal(EBPR)
%K polyhydroxyalkanoates (PHA)
%K polyhydroxybutyrate(PHB)
%K polyhydroxyvalerate(PHV)<br>强化生物除磷
%K 聚羟基烷酸(PHA)
%K 聚羟基丁酸(PHB)
%K 聚羟基戊酸(PHV)
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=127868461F050560&yid=37904DC365DD7266&vid=DB817633AA4F79B9&iid=B31275AF3241DB2D&sid=17FE7A1C78626A81&eid=2D52C01434B71375&journal_id=0250-3301&journal_name=环境科学&referenced_num=4&reference_num=13