%0 Journal Article
%T Morphological Characteristics of Algae Floc and Its Relation with Flotation<br>藻类絮凝体形态学特征及其与气浮的关系研究
%A WANG Yu-heng
%A WANG Qi-shan
%A WU Yu-bao
%A AN Yi
%A PENG Xin-hong
%A <br>王玉恒
%A 王启山
%A 吴玉宝
%A 安毅
%A 彭新红
%J 环境科学
%D 2008
%I 
%X Microcysits aeruginosa (MA) was removed by polyaluminium chloride (PAC) in the coagulation-flotation process. The test studied removing effect and morphological characteristics of PAC-MA flocs in the different coagulation conditions and discussed the correlation of them. Fractal dimension was measured by image analysis. The results indicate that the best range in dosage, stirring strength and time of flocculation reaction are respectively 5.6 - 9.8 mg/L Al2O3, 50 - 80 s(-1) and 5 - 8 min in the condition of mixing stirring strength of 500 s(-1), mixing time of 1 min, circulate ratio of 10%. The dosage, stirring strength and time of flocculation reaction influenced the form of flocs remarkably. Moreover the range of fractal dimension D2 is between 1.1688 and 1.2357, and average diameters vary between 300 microm and 500 microm with the best flocculation condition. The flocs with the looser structure, the bigger diameter variation and more branches can adhere to bubbles more easily.
%K coagulation-flotation
%K PAC-MA floc
%K image analysis
%K morphology
%K fractal dimension<br>混凝-气浮
%K PAC-MA絮凝体
%K 图像法
%K 形态学
%K 分形维数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=181CCEA5F8ABFE28BCC29A29A07AD046&yid=67289AFF6305E306&vid=771469D9D58C34FF&iid=38B194292C032A66&sid=2A22E972FD97071B&eid=08B2E838F29A693A&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=17