%0 Journal Article
%T Flocculation of Wastewater Produced in Polymer Flooding<br>油田聚合物驱采出污水絮凝过程研究
%A LU Lei
%A GAO Bao-yu
%A YUE Qin-yan
%A CAO Bai-chuan
%A <br>卢磊
%A 高宝玉
%A 岳钦艳
%A 曹百川
%J 环境科学
%D 2007
%I 
%X The particle size distribution, flocculation index, Zeta potential and oil content in water were tested during flocculation of wastewater produced in polymer flooding of oil field. CHP-03, a mixture of a modified pluronic demulsifer and a weak-cationic flocculant, was used to improve the efficiency of oil droplet collision. The effects of polyacrylamide, temperature, and mixing speed on flocculation dynamics are discussed. Polyacrylamide affects the oil-water separation by obstructing the aggregation of small oil droplets, but electrostatic repulsion is not a major factor in preventing flocculation. The local temperature has a limited effect on flocculation. Fast mixing favors the growth of flocs, while slow mixing is suitable for the coalescence of oil droplets. Addition of 250mg/L CHP-03 can enhance the oil-water separation and remove 92% of the oil content.
%K polymer flooding
%K flocculation
%K particle size distribution
%K electrostatic repulsion<br>聚合物驱
%K 絮凝
%K 粒径分布
%K 静电排斥
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=D1E82DC86684B1703E5CB7AA69FF2901&yid=A732AF04DDA03BB3&vid=D3E34374A0D77D7F&iid=E158A972A605785F&sid=A67EE05E56DA7F45&eid=849F08713EB6820A&journal_id=0250-3301&journal_name=环境科学&referenced_num=1&reference_num=12