%0 Journal Article
%T CO2 fixation by Chlorella vulgaris under purified CO2 conditions<br>纯二氧化碳条件下小球藻固定CO2
%A Song Chengjun
%A Dong Baocheng
%A Zhao Lixin
%A Chen Ling
%A Luo Juan
%A Wan Xiaochun
%A Zhang Yuhua
%A Zhang Xudong
%A <br>宋成军
%A 董保成
%A 赵立欣
%A 陈羚
%A 罗娟
%A 万小春
%A 张玉华
%A 张旭东
%J 环境工程学报
%D 2012
%I 
%X CO2 fixation by microalgae is a new hot issue for CO2 reduction. Based on static CO2 absorption method, experiment was designed to study the influence of CO2 on growth of Chlorella vulgaris, CO2 reduction and medium pH at the aeration of purified CO2. The results showed that injection pure CO2 significantly prolonged the lag phase of cell growth, prolonging 10~12 d, but it had no impact on other growth phases. Process of CO2 fixation was divided into physical fixation process and biological fixation process, the former occurred in the cell lag phase and its peak value was caused by CO2 dissolved in culture medium. The latter occurred in the exponential phase, stable phase and decline phases, its peak value was caused by exponential growth of C. vulgaris. All of efficiency of CO2 fixation in two processes showed a trend of first increase and then decrease. Moreover, culture medium pH varied markedly and medium was sharply acidized in 4 days, then culture medium pH few changed and maintained at the suitable level. Therefore, it was suggested that high inoculum concentration and high-densitily monitoring and control of medium pH are necessary at the aeration of high concentration of CO2, which will maintain appropriate medium pH, and shorten culture time in order to improve the efficiency of CO2 fixation.
%K biological CO2 fixation
%K Chlorella vulgaris
%K CO2 capture
%K culturation of algae<br>生物固碳
%K 普通小球藻
%K CO2捕捉微藻培养
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=92E6F4267FD4CBCB51B1E49E014D8054&jid=3567BD61129AA59043F5DE01F8815DB5&aid=08F5EC0AA8616491CB1148E44A8C4367&yid=99E9153A83D4CB11&vid=B31275AF3241DB2D&iid=59906B3B2830C2C5&sid=B5A0E8D30D1D98A3&eid=03A0E8D75207FA09&journal_id=1673-9108&journal_name=环境工程学报&referenced_num=0&reference_num=30