School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; Shandong Provincial Engineering Center on Environmental Science and Technology, Jinan 250061, China.
School of Environmental Science and Engineering, Shandong University, Qingdao 266237, China; State Key Laboratory of Microbial Technology, Shandong University, Qingdao 266237, China; Shandong Provincial Engineering Center on Environmental Science and Technology, Jinan 250061, China.
Bioresour Technol. 2020 Nov;315:123761. doi: 10.1016/j.biortech.2020.123761. Epub 2020 Jul 2.
Previous study has demonstrated that freshwater can be replaced with seawater for dilution of feed to algal production and wastewater treatment, but high harvest cost in suspended-growth systems is still a troublesome limitation for large-scale production. Therefore, a novel inclined algal biofilm photobioreactor (IABPBR) was constructed for algal bioproduct production and treatment of seawater-diluted anaerobically digested effluent (SA) in this study. Fluffy polyester was selected as the best carrier for the algal biofilm among ten discarded materials. With the help of phytohormones, the viability of SDEC-18 was clearly enhanced and an algal biomass productivity of 5.66 g/m/d was achieved. The SDEC-18 biofilm provided removal capacities of 0.65, 0.25 and 3.31 g/m/d for TN, TP and COD. Phytohormones clearly enhanced the lipid biosynthesis, with an extraordinary lipid productivity of 3.98 g/m/d being achieved. Moreover, an automatic harvesting system was designed for the efficient harvesting process during large-scale production.
先前的研究已经表明，淡水可以被海水替代来稀释饲料，用于藻类生产和废水处理，但是悬浮生长系统中高的收获成本仍然是大规模生产的一个麻烦限制因素。因此，在这项研究中，我们构建了一种新型的倾斜藻类生物膜光生物反应器（IABPBR），用于藻类生物制品的生产以及处理海水稀释的厌氧消化出水（SA）。在十种废弃材料中，蓬松的聚酯被选为藻类生物膜的最佳载体。在植物激素的帮助下，SDEC-18 的活力明显增强，实现了 5.66 g/m/d 的藻类生物质生产力。SDEC-18 生物膜对 TN、TP 和 COD 的去除能力分别达到 0.65、0.25 和 3.31 g/m/d。植物激素明显增强了脂类的生物合成，实现了非凡的 3.98 g/m/d 的脂类生产力。此外，还设计了一个自动收获系统，用于在大规模生产中进行高效的收获过程。
