当前位置: X-MOL 学术Int. Biodeterior. Biodegrad. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Performance of different microalgae-based technologies in nutrient removal and biogas upgrading in response to various GR24 concentrations
International Biodeterioration & Biodegradation ( IF 4.1 ) Pub Date : 2020-12-23 , DOI: 10.1016/j.ibiod.2020.105166
Jing Zhang , Chunzhi Zhao , Shiqing Sun , Yongjun Zhao , Juan Liu

Microalgae-based technology is an emerging strategy for the simultaneous purification of nutrients in biogas slurry and CO2 in biogas. To evaluate effects of synthetic analogue of strigolactone (GR24) concentration on removal efficiency, mono-cultivation of microalgae and co-cultivation of algae with fungus or activated sludge were performed in a photobioreactor. The GR24 concentration of 10−9 M was contributed to the optimum growth characteristics, photosynthetic performance and purification effects in the co-cultivation system of Chlorella vulgaris with activated sludge. The optimal growth rate and mean daily productivity for Chlorella vulgaris were 0.419 ± 0.04 d−1 and 0.342 ± 0.029 g L−1 d−1, respectively. The photosynthetic performance parameters Fv/Fm, PIABS, ΨO, and ΦEO were 0.89 ± 0.08, 6.89 ± 0.62, 0.97 ± 0.09, and 0.69 ± 0.06, respectively, indicating that GR24 with a concentration of 10−9 M was more helpful for photosynthesis of microalgae. Moreover, the maximum removal rate of chemical oxygen demand (COD), total nitrogen (TN), total phosphorus (TP) and CO2 were obtained by the induction of 10−9 M of GR24, which were 77.33 ± 7.25%, 78.86 ± 7.51%, 78.12 ± 7.57% and 69.33 ± 6.86%, respectively. This research therefore provides an effective strategy for wastewater bioremediation and high-quality biogas energy acquisition.



中文翻译:

不同微藻技术对各种GR24浓度的响应在营养去除和沼气升级方面的性能

基于微藻的技术是一种同时净化沼液中养分和沼气中CO 2的新兴策略。为了评估松香酸内酯(GR24)浓度的合成类似物对去除效率的影响,在光生物反应器中进行了微藻类的单培养以及藻类与真菌或活性污泥的共培养。10 -9  M的GR24浓度有助于小球藻与活性污泥共培养系统中的最佳生长特性,光合性能和纯化效果。小球藻的最佳生长速率和日平均生产力分别为0.419±0.04 d -1和0.342±0.029 g L -1d -1。光合性能参数˚F v / F,PI ABS,Ψ Ó,Φ EO分别为0.89±0.08,6.89±0.62,0.97±0.09,和0.69±0.06,这表明GR24为10的浓度-9 中号对微藻的光合作用更有帮助。此外,通过诱导10 -9获得了最大化学需氧量(COD),总氮(TN),总磷(TP)和CO 2的去除率。 GR24的M分别为77.33±7.25%,78.86±7.51%,78.12±7.57%和69.33±6.86%。因此,这项研究为废水生物修复和高质量沼气能源获取提供了有效的策略。

更新日期:2020-12-23
down
wechat
bug