Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
Beijing Key Lab for Source Control Technology of Water Pollution, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China; Engineering Research Center for Water Pollution Source Control & Eco-remediation, College of Environmental Science and Engineering, Beijing Forestry University, Beijing, 100083, China.
Environ Res. 2024 Aug 1;254:119168. doi: 10.1016/j.envres.2024.119168. Epub 2024 May 16.
The multiple microalgal collaborative treatment of domestic wastewater has been extensively investigated, but its whole life cycle tracking and consequent potential have not been fully explored. Herein, a dual microalgal system was employed for domestic wastewater treatment, tracking the variation in microalgal growth and pollutants removal from shake flask scale to 18 L photobioreactors scales. The results showed that Chlorella sp. HL and Scenedesmus sp. LX1 combination had superior growth and water purification performance, and the interspecies soluble algal products promoted their growth. Through microalgae mixing ratio and inoculum size optimized, the highest biomass yield (0.42 ± 0.03 g/L) and over 91 % N, P removal rates were achieved in 18 L photobioreactor. Harvested microalgae treated in different forms all promoted wheat growth and suppressed yellow leaf rate. This study provided data support for the whole process tracking of dual microalgal system in treating domestic wastewater and improving wheat growth.
已经广泛研究了多种微藻协同处理生活污水，但对其整个生命周期的跟踪及其潜在应用尚未得到充分探索。本文采用双藻系统处理生活污水，从摇瓶规模到 18L 光生物反应器规模，跟踪微藻生长和污染物去除的变化。结果表明，小球藻 HL 和栅藻 LX1 的组合具有优越的生长和水净化性能，种间可溶性藻产物促进了它们的生长。通过优化微藻混合比例和接种量，在 18L 光生物反应器中获得了最高的生物量产量（0.42±0.03g/L）和超过 91%的氮、磷去除率。以不同形式处理的收获微藻均促进了小麦的生长，降低了黄叶率。本研究为双藻系统处理生活污水和提高小麦生长的全过程跟踪提供了数据支持。
