Hydrocarbon production from secondarily treated piggery wastewater by the green alga Botryococcus braunii
Hydrocarbon production from secondarily treated piggery wastewater by the green alga Botryococcus braunii
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DOI：
10.1023/a:1023855710410
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发表时间：
2003-03-01
影响因子：
3.3
通讯作者：
Kim, BW
中科院分区：
文献类型：
--
作者：
An, JY;Sim, SJ;Kim, BW
研究了布朗葡萄球菌UTEX 572生长过程中对猪场废水中氮、磷的去除效果，并测定了其产烃量。试验了猪场废水二级处理后，氮、磷初始浓度对最佳培养浓度范围的影响。高细胞密度（>7 g L-1 d. wt），NO_3-N浓度为510 mg L ~（-1）。在基础磷浓度（14毫克P L-1）的氮浓度的增长。除缺磷条件下（mu =0.019 h（-1））外，生长速率几乎与初始磷酸盐浓度无关（mu = 0.027，与0.030 h（-1）相似）。B。采用膜生物反应器（MBR）对猪场废水进行预处理，并进行产酸发酵，可使布朗氏菌在猪场废水中生长良好。获得8.5 mg L-1的干细胞重量和0.95 g L-1的烃水平，并且以620 mg N L-1的速率去除硝酸盐。这些结果表明，经过预处理的猪场废水为B的生长和产烃提供了良好的培养基。布劳尼。
A laboratory study was conducted on the removal of nitrogen and phosphorus from piggery wastewater during growth of Botryococcus braunii UTEX 572, together with measurements of hydrocarbon formation by the alga. The influence was tested of the initial nitrogen and phosphorus concentration on the optimum concentration range for a culture in secondarily treated piggery wastewater. A high cell density (>7 g L-1 d. wt) was obtained with 510 mg L-1 NO3-N. Growth increased with nitrogen concentration at the basal phosphorus concentration ( 14 mg P L-1). The growth rate was nearly independent (mu=0.027similar to0.030 h(-1)) of the initial phosphate concentration, except under conditions of phosphate deficiency (mu=0.019 h(-1)). B. braunii grew well in piggery wastewater pretreated by a membrane bioreactor (MBR) with acidogenic fermentation. A dry cell weight of 8.5 mg L-1 and hydrocarbon level of 0.95 g L-1 were obtained, and nitrate was removed at a rate of 620 mg N L-1. These results indicate that pretreated piggery wastewater provides a good culture medium for the growth and hydrocarbon production by B. braunii.