Key Laboratory of Agro-Environment in the Tropics, Ministry of Agriculture, Guangdong Provincial Key Laboratory of Eco-Circular Agriculture, South China Agricultural University, Guangzhou 510642, China.
Qingyuan Polytechnic, Qingyuan 511510, China.
Bioresour Technol. 2020 Feb;297:122418. doi: 10.1016/j.biortech.2019.122418. Epub 2019 Nov 13.
The study evaluates 36 filamentous heterocystous cyanobacteria for the treatment of biogas slurry from pig farm and the accumulation of biomass for bioenergy production. The results showed that only the strains B, J, and L were able to adapt to a 10% biogas slurry. The removal rates of ammonia nitrogen, total nitrogen, and total phosphorus for strains J and L were 92.46%-97.97%, 73.79%-79.90%, and 97.14%-98.46%, respectively, higher than that of strain B. Strain J had the highest biomass productivity and lipid productivity. Based on the biodiesel prediction results, it was concluded that strains J and L are more suitable for biodiesel production. The estimation of theoretical methane potential suggests that the algal biomass of strain J also have the desirable possibility of biogas generation. In summary, algal strain J (Nostoc sp.) offers great potential for biogas slurry treatment and for the production of bioenergy.
该研究评估了 36 种丝状异形胞蓝藻，以处理来自养猪场的沼气发酵液并积累生物质以用于生物能源生产。结果表明，只有菌株 B、J 和 L 能够适应 10%的沼气发酵液。菌株 J 和 L 对氨氮、总氮和总磷的去除率分别为 92.46%-97.97%、73.79%-79.90%和 97.14%-98.46%，高于菌株 B。菌株 J 具有最高的生物质生产力和脂质生产力。基于生物柴油预测结果，得出结论认为菌株 J 和 L 更适合生产生物柴油。理论甲烷潜力的估计表明，菌株 J 的藻类生物质也具有产生沼气的理想可能性。综上所述，藻类菌株 J（念珠藻属）在沼气发酵液处理和生物能源生产方面具有巨大的潜力。
