Chemical and Materials Engineering Department, University of Auckland, New Zealand.
National Institute of Water and Atmospheric Research Ltd. (NIWA), PO Box 11-115, Hamilton 3200, New Zealand.
Bioresour Technol. 2016 Dec;221:222-233. doi: 10.1016/j.biortech.2016.09.028. Epub 2016 Sep 9.
This study investigates the year-round production potential and quality of biodiesel from wastewater treatment high rate algal pond (WWT HRAP) biomass and how it is affected by CO addition to the culture. The mean monthly pond biomass and lipid productivities varied between 2.0±0.3 and 11.1±2.5gVSS/m/d, and between 0.5±0.1 and 2.6±1.1g/m/d, respectively. The biomass fatty acid methyl esters were highly complex which led to produce low-quality biodiesel so that it cannot be used directly as a transportation fuel. Overall, 0.9±0.1g/m/d (3.2±0.5ton/ha/year) low-quality biodiesel could be produced from WWT HRAP biomass which could be further increased to 1.1±0.1g/m/d (4.0ton/ha/year) by lowering culture pH to 6-7 during warm summer months. CO addition, had little effect on both the biomass lipid content and profile and consequently did not change the quality of biodiesel.
本研究调查了全年从废水处理高藻塘（WWT HRAP）生物质中生产生物柴油的潜力和质量，以及 CO 添加到培养物中如何影响生物柴油的生产。池塘生物量和脂质生产力的月平均值分别在 2.0±0.3 和 0.5±0.1 至 11.1±2.5 和 2.6±1.1 g/m/d 之间变化。生物质脂肪酸甲酯非常复杂，导致生产出的生物柴油质量较差，因此不能直接用作运输燃料。总的来说，从 WWT HRAP 生物质中可以生产 0.9±0.1g/m/d（3.2 吨/公顷/年）的低质量生物柴油，如果在温暖的夏季将培养物的 pH 值降低到 6-7，还可以进一步增加到 1.1±0.1g/m/d（4.0 吨/公顷/年）。CO 添加对生物量脂质含量和组成几乎没有影响，因此不会改变生物柴油的质量。
