Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 1627, FI-70211 Kuopio, Finland.
Environmental Technology, Savonia University of Applied Sciences, P.O. Box 6 (Microkatu 1 C), FI-70201 Kuopio, Finland.
Bioresour Technol. 2018 May;255:104-110. doi: 10.1016/j.biortech.2018.01.101. Epub 2018 Jan 31.
In this study, feasibility of Chlorella vulgaris cultivation in pulp wastewater (PWW) diluted with lake water (LW) and aquaculture wastewater (AWW) was investigated. The best ratios of PWW and AWW (PAWW) viz., 80% PWW:20% AWW and 60% PWW:40% AWW were selected as microalgal culture medium. Algal growth was investigated with and without addition of macro and micronutrients to the cultivation medium. The highest dry algal weight was observed as 1.31 g/L in 60% PWW:40% AWW without adding micronutrients. Nutrients and organic compounds removal efficiencies by microalga were studied in PAWW. Protein, carbohydrate and lipid percentage of harvested microalga from wastewater and Bold's Basal Medium (BBM) solution were analyzed. Fatty acids analysis revealed that C16 and C18 are the major fatty acids in C. vulgaris cultivated in BBM and PAWW. The results of this study revealed that C. vulgaris is a potential candidate for PAWW treatment and lipid and carbohydrate accumulation.
在这项研究中，研究了用湖水（LW）和养殖废水（AWW）稀释的纸浆废水（PWW）中培养普通小球藻的可行性。选择了最佳的 PWW 和 AWW 比例（PAWW），即 80%PWW:20%AWW 和 60%PWW:40%AWW 作为微藻培养介质。在培养介质中添加和不添加宏量和微量营养素来研究藻类生长。在不添加微量元素的情况下，在 60%PWW:40%AWW 中观察到最高的干藻重量为 1.31g/L。研究了微藻在 PAWW 中的养分和有机化合物去除效率。分析了从废水和 Bold's Basal Medium (BBM) 溶液中收获的微藻的蛋白质、碳水化合物和脂质百分比。脂肪酸分析表明，在 BBM 和 PAWW 中培养的 C. vulgaris 中，C16 和 C18 是主要的脂肪酸。这项研究的结果表明，C. vulgaris 是 PAWW 处理和脂质和碳水化合物积累的潜在候选物。
