城市生活废水用于产油微藻培养
Cultivating an oleaginous microalgae with municipal wastewater
查看参考文献17篇
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文摘
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将废水与产油微藻培养结合起来,可以实现废水的无害化处理,还可为微藻的培养提供营养组分和大量水源.利用高产油栅藻,以城市生活废水为水源,在气泡柱式光反应器中,考察了添加不同营养组分对栅藻细胞的生长,生物质产量,总脂含量以及氮磷去除情况的影响.结果表明:生活废水非常适合于产油微藻的培养.利用生活废水进行微藻培养中,仅需补充添加无机氮,无机磷,柠檬酸铁铵以及微量元素.但这些营养组分的加入量对藻细胞的生长,生物量和油脂积累有重要影响.在优化的废水培养基中微藻细胞浓度可达8.0 g/L左右,远高于标准BG11培养基5.0 g/L的水平.微藻细胞对于无机氮与磷有着高的吸收能力,在废水中加入185.25 mg/L以下无机氮,16.1 mg/L以下无机磷的条件下培养34 d后,培养液水体中未检测到有氮磷残留.由此表明利用城市生活废水培养含油微藻可以在获得微藻油脂产品的同时实现水体的氮磷无害化处理 |
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其他语种文摘
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Municipal wastewater is usually problematic for the environment. The process of oleaginous microalgal culture requires large amounts of nutrients and water. Therefore,we studied the feasibility of oleaginous microalgal culture of Scenedesmus dimorphus in bubbled column photobioreactor with municipal wastewater added with different nutrients. S.dimorphus could adapt municipal nutrient-rich wastewater by adding some nutrients as nitrogen, phosphorus, ferric ammonium citrate and trace elements, and the amounts of such nutrients have significant effects on cell growth, biomass yield and lipid accumulation. At optimum compositions of wastewater medium, the algal cell concentration could reach 8.0 g/L, higher than that of 5.0 g/L in standard BG11. Furthermore,S.dimorphus had strong capacity to absorb inorganic nitrogen and phosphorus from its culture water. There was almost no total nitrogen and phosphorus residues in culture medium after three or four days culturing when the adding mounts of nitrate and phosphate in wastewater medium were no more than 185.2 mg/L and 16.1 mg/L respectively under the experimental conditions. As a conclusion,it was feasible to cultivate oleaginous microalgae with municipal nutrient-rich wastewater, not only producing feedstock for algal biodiesel, but also removing inorganic nitrogen and phosphorus from wastewater |
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来源
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生物工程学报
,2011,27(3):445-452 【核心库】
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关键词
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栅藻培养
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城市生活废水
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气泡柱式光反应器
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微藻生物量
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氮/磷去除
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地址
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1.
中国海洋大学食品科学与工程学院, 中国科学院生物燃料重点实验室, 青岛, 266003
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中国科学院青岛生物能源与过程研究所, 中国科学院生物燃料重点实验室, 青岛, 266101
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-3061 |
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学科
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生物工程学(生物技术) |
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基金
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山东省科技攻关项目
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中国科学院太阳能计划
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文献收藏号
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CSCD:4172470
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参考文献 共
17
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