CSIRO, Energy Transformed Flagship, Hobart, Australia; CSIRO, Marine and Atmospheric Research, GPO Box 1538, Hobart 7001, Australia.
Bioresour Technol. 2013 Feb;130:261-8. doi: 10.1016/j.biortech.2012.12.001. Epub 2012 Dec 12.
Treatment of wastewater while producing microalgal biomass is receiving ever-increasing attention, particularly in the biofuels arena. In this study, a wastewater chlorophyte isolate, Kirchneriella sp., was tested for its ability to be mass cultivated, utilize nutrients from defined media and wastewater, and produce bioproducts of commercial interest. Growth studies were carried out in various systems at scales up to 60L, with Kirchneriella sp. showing an excellent amenability to being cultured. Biomass concentrations of greater than 1gL(-1) were consistently achieved, nitrogen and phosphorus uptake was rapid, and stable medium-term cultures were maintained. Nitrogen limitation affected biomass yield, fatty acid methyl ester (FAME) yield, and cetane index. In contrast, a low phosphorus condition had no effect. Kirchneriella sp. showed an ability to produce several products of commercial value, including carbohydrate-rich biomass, FAME/biodiesel and the pigments β,β-carotene and lutein.
在生产微藻生物质的同时处理废水越来越受到关注，特别是在生物燃料领域。在这项研究中，测试了一株废水绿藻分离株，即克氏海链藻，以评估其大规模培养、利用限定培养基和废水中养分以及生产具有商业价值的生物产品的能力。在各种规模高达 60L 的系统中进行了生长研究，结果表明克氏海链藻非常适合培养。始终实现了大于 1g/L 的生物量浓度，氮和磷的吸收迅速，并且可以维持稳定的中期培养。氮限制会影响生物量产量、脂肪酸甲酯 (FAME) 产量和十六烷指数。相比之下，低磷条件没有影响。克氏海链藻表现出生产多种具有商业价值的产品的能力，包括富含碳水化合物的生物质、FAME/生物柴油以及β,β-胡萝卜素和叶黄素等色素。
