%0 Journal Article
%T Effect of pH, inoculation and coal burden on bio-desulfurization of coal by Acidithiobacillus ferrooxidans LX5<br>pH、接种量及固形物含量对氧化亚铁硫杆菌LX5煤炭生物脱硫的影响
%A Liu Yujiao
%A Yang Xinping
%A Zhang Dewei
%A Wang Shimei
%A <br>刘玉娇
%A 杨新萍
%A 张德伟
%A 王世梅
%J 环境工程学报
%D 2013
%I 
%X Great attention has been paid to the air pollution caused by combustion of high sulfur coal. Bio-desulfurization performances of Acidithiobacillus ferrooxidans LX5 at various pH, inoculation and coal burden were evaluated through batch experiment. In a strong acid culture for 15 days, when initial pH were 2.0, 2.5, 3.0 and 4.0, the desulfurization efficiency by strain LX5 quickly reached 43.1%, 73.3%, 61.9% and 37.3%, respectively. When the batch cultures were carried out 5, 10 and 15 mL of bacterial suspension, the maximum desulfurization efficiencies by strain LX5 were 44.2%, 68.1% and 72.2%, respectively. Different coal loads had strong influence on the bio-desulfurization performance of strain LX5. The maximum desulfurization efficiencies under the coal loads of 5%, 10% and 15% were 73.1%, 72.2% and 56.3%, respectively. The optimal conditions of bio-desulfurization by LX5 were initial pH of 2.5, inoculation of 10% and loads of 10%, respectively. A mean desulfurization efficiency of 69.2%, especially for pyrite sulfur removal efficiency of 78% were achieved in a 5 L sequencing batch reactor.
%K Acidithiobacillus ferrooxidans LX5
%K coal
%K desulfurization
%K reactor<br>嗜酸性氧化亚铁硫杆菌
%K 煤炭
%K 脱硫
%K 反应器
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=4D6BB6A422263A456DA08ED45B741FE3&yid=FF7AA908D58E97FA&vid=DF92D298D3FF1E6E&iid=0B39A22176CE99FB&sid=61000B595C9AE527&eid=231F9A307C169827&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=19