%0 Journal Article
%T Control of Chironomids in Water by Immobilized Bacillus thuringiensis var. israelensis de Barjac<br>固定化苏云金杆菌以色列变种控制水中红虫的研究
%A ZHANG Jin song
%A PAN Jing
%A ZHAO Qing liang
%A ZHOU Ling
%A <br>张金松
%A 潘晶
%A 赵庆良
%A 周令
%J 环境科学
%D 2004
%I 
%X A strain from Bacillus thuringiensis var. israelensis de Barjac (B.t.i), having a fatal toxicity to chironomids, was immobilized in the PVA-H3BO3 gel beads confected with a bit of sodium alginate and activated carbon. The result showed that optimal weight ratios were 10%PVA, 1% sodium alginate and 20% activated carbon, respectively. When 4% calcium chloride saturated boric acid solution (pH=6.7) was used as gelatin agent for gelating 24h, the produced gel beads had good performance in mechanical strength. This method is proved to be simple and cheap. The toxicity of the beads to chironomids is high and the release is slow.
%K immobilization of Bacillus thuringiensis var
%K israelensis de Barjac
%K water treatment
%K chironomid<br>固定化苏云金杆菌以色列变种
%K 水处理
%K 红虫
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=51543630105B19D8&yid=D0E58B75BFD8E51C&vid=C5154311167311FE&iid=94C357A881DFC066&sid=91C9056D8E8856E0&eid=480C51B1F0CE0AB6&journal_id=0250-3301&journal_name=环境科学&referenced_num=2&reference_num=7