%0 Journal Article
%T Effect of Growth Phase on the Flocculation of Algal Cells Using Clays<br>藻细胞不同生长阶段的海泡石凝聚除藻性能
%A CHEN Hao
%A PAN Gang
%A ZHANG Ming-ming
%A <br>陈灏
%A 潘纲
%A 张明明
%J 环境科学
%D 2004
%I 
%X Four different growth phases, late lag phase, middle logarithmic phase, late logarithmic phase and early senescence phase of Microcystis aeruginosa 469 were studied for their surface hydrophobicity (xylene-water system) and surface charge (Zeta potential), followed by flocculation tests with sepiolite of 0.2 g/L. The results showed that the values of hydrophobicity were 64%, 48%, 58% and 70%, and the algal removal efficiencies after 60 min were 97%, 87%, 81% and 99% respectively, indicating a good relationship between surface hydrophobicity and removal efficiency (R = 0.7-0.8), but not the surface charge. Surface hydrophobicity and removal efficiency for the algal cells of Microcystis aeruginosa both varied with growth phase in a sequence of senescence phase > lag phase > logarithmic phase.
%K cyanobacterium
%K growth phase
%K hydrophobicity
%K surface charge
%K flocculation ability<br>蓝藻
%K 生长期
%K 疏水性
%K 表面电性
%K 凝聚性能
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=522730F6E8C6B604&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=B31275AF3241DB2D&sid=CD775AE9DDBD7B53&eid=7E8E8B150580E4AB&journal_id=0250-3301&journal_name=环境科学&referenced_num=7&reference_num=8