%0 Journal Article
%T Characteristics of a new packing material and its application in biodesulfurization<br>新型填料特性及其在生物脱硫中的应用
%A Wei Yongchen
%A Cheng Rong
%A Zhou Wei
%A Zhang Yongkui
%A <br>魏永臣
%A 程蓉
%A 周伟
%A 张永奎
%J 环境工程学报
%D 2012
%I 
%X The main objective of this work was to propose a new packing material,which could provide a better buffering capacity.The material composed of calcium carbonate,an organic binder and hydroxypropyl cellulose was made.Moisture retention capacity was higher than 20%,and water cohesion capacity lasted for more than six months.Buffering capacity investigated in liquid experiments showed that the packing material could buffer pH from 5.0 to 6.5.BT50 was chosen and tested to achieve immobilization cycles using Thiobacillus thioparus.In this process,the material maintained a neutral pH which is an optimum condition for bacterial growth.A total of 10 immobilization cycles were performed with a total duration of 240 h.After 5 cycles,the maximum number of bacteria immobilized by this technique was reached,and the substrate consumption rate achieved stability.The total quantity of biomass immobilized was 5.86×108 cells/mL.A total of desulfurization process maintained at 50 days,H2S removal rate was above 95% with different concentrations of H2S,and the pH of medium was 6.7~7.1.
%K biodesulfurization
%K H2S
%K packing material
%K buffer pH<br>生物脱硫
%K H2S
%K 填料
%K 缓冲pH
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=4561954BE0A0F99DF730DCD2AA5BED0E&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=B31275AF3241DB2D&sid=8D39DA2CB9F38FD0&eid=3EBE383EEA0A6494&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=0