%0 Journal Article
%T Preparation and characteristics of controlled release potassium permanganate<br>高锰酸钾缓释剂的制备及其性能研究
%A Chen Yanmei
%A Li Xiaoting
%A Yuan Baoling
%A <br>陈艳美
%A 李小婷
%A 苑宝玲
%J 环境工程学报
%D 2010
%I 
%X In order to remediate the DNAPLs pollution in ground water,the preparation and characterization of the encapsulated KMnO_4 particles by stearic acid was studied.The purpose of encapsulated KMnO_4 particles by phase separation method was to create microcapsules with slow-release properties.The encapsulation rate can be up to 163.3%when the ratio of stearic acid and KMnO_4 was 3:1,stirring speed at 450 r/min and ultrasonic time was 10 min.The release kinetics of encapsulated KMnO_4 particles was in good agreement with Q=kt~nmodel and the theoretical time of the encapsulated KMnO_4 to release permanganate into water continually were 229.4 d under the above conditions of preparation.The characteristics of encapsulated KMnO_4 by IR and SEM analysis showed that the structure of stearic acid was decomposed during the encapsulation process,while stearic acid was bonded chemically into the surface of KMnO_4,rather than adsorbed physically.
%K stearic acid
%K potassium permanganate
%K encapsulation
%K controlled release<br>硬脂酸
%K 高锰酸钾
%K 包覆
%K 缓释
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=B34C8505875A86530357B5EDE9B6E613&yid=140ECF96957D60B2&vid=E158A972A605785F&iid=94C357A881DFC066&sid=33C2C2DAF31F219B&eid=C6E83222BCBFFFF8&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=13