栅藻和小球藻在4种养殖废水中的生长及净化效果对比研究

发布时间：2018-11-19 14:02

【摘要】：利用经过处理的鸡场养殖废水、猪场沼液(简称猪沼)、池塘养殖废水和BG-11培养基分别培养斜生栅藻和普通小球藻,对比2种微藻在各培养液中的生长、对废水中氮磷的净化效果以及微藻油脂的积累情况。结果表明:经过23 d的培养,小球藻处理组中,小球藻+猪沼培养液中可收获藻粉0.353 1 g·L~(-1),小球藻+BG-11中可收获藻粉0.189 8 g·L~(-1),高于其他3种培养液中的收获量。栅藻处理组中,栅藻+BG-11中收获的藻粉最多,为0.168 5 g·L~(-1),其次为栅藻+猪沼培养液(0.131 1 g·L~(-1))。2种微藻对不同废水培养液的净化效果不同,但总体来说,栅藻和小球藻对总磷的去除效果最好,去除率在89.32%~98.69%。对硝氮的去除率也在60%以上。另外,利用猪沼培养的小球藻油脂含量最高,达到50.34%;培养的栅藻油脂含量与BG-11中相近,并高于其他培养液。因此,利用猪场沼液培养栅藻和小球藻具有可行性。
[Abstract]:Chlorella obliquus and Chlorella vulgaris were cultured in treated chicken farm culture wastewater, pig marsh liquid, pond culture wastewater and BG-11 medium, respectively. The growth of two microalgae in each culture medium was compared. Purification effect of nitrogen and phosphorus in wastewater and accumulation of microalgae oil. The results showed that, after 23 days culture, the algae powder could be harvested in the culture medium of Chlorella sp. Porcine marsh and 0.189 8 g L ~ (-1) in Chlorella sp. BG-11. The yield was higher than that in the other three kinds of culture medium. In the treatment group, 0.168 g L ~ (-1) of alga powder was harvested in BG-11. Secondly, two kinds of microalgae (0.131 g / L ~ (-1).) had different purifying effects on different wastewater cultures, but generally speaking, the removal efficiency of total phosphorus was the best by Chlorella spp and Chlorella spp. The removal rate is 89.32% and 98.69%. The removal rate of nitrate is more than 60%. In addition, the content of Chlorella oil in porcine marsh was the highest (50.34), and the oil content of chlorella was similar to that of BG-11 and higher than that of other culture medium. Therefore, it is feasible to culture chlorella and chlorella using biogas liquid from pig farm.
【作者单位】：安徽省农业科学院水产研究所;
【基金】：国家自然科学基金资助项目(31400398) 安徽省自然科学基金资助项目(1508085QC55) 安徽省农业科学院院长青年创新基金资助项目(15B0519)
【分类号】：X713

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