This study aims to set up the operating conditions of a battery of airlift photo-bioreactors (AL-PBRs) for Chlorella vulgaris cultivation integrated into a pilot-scale Biowaste-to-Biofuels (BtB) production plant, producing both biodiesel by transesterification of waste frying oils and syngas by wood chips gasification. Microalgae are fed with both wastewater rich in glycerol and flue gas. Mixing, mass transport, kinetics, and light conditions inside the AL-PBRs are chosen by keeping some dimensionless numbers ($\text{Re}$, $\text{Sh},{\text{ Da}}_{\text{II}}$ and A) fixed around the values found at lab-scale (11000, 1550, 23, 35, respectively). $\text{pH}$, T, nutrient-related ratios, and light intensity are adjusted inside the optimal ranges found at indoor conditions. The number of AL-PBRs, feeding/extraction time intervals, and flowrates are designed by mass balancing the entire pilot-plant in order to operate in continuous quasi-zero waste.

Outdoor tests confirmed that 12–15 AL-PBRs with a total volume of 125–155 L reuse 28.8 L d⁻¹ of wastewater by-produced from the biodiesel units providing 228 L d⁻¹ of biodiesel and reuse the total of about 90 m³ h⁻¹ of flue gas in exit from the syngas combustion unit with power generation of 9–9.5 kW. The battery works at an initial concentration for each cycle of around 0.5 g L⁻¹ and concentration at extraction of around 1.05 g L⁻¹.

这项研究的目的是建立用于绿藻培养的一系列空运光生物反应器（AL-PBR）的运行条件，该反应器已整合到中试规模的生物废料转化为生物燃料（BtB）的生产工厂中，通过废物的酯交换反应生产两种生物柴油通过木片气化来油炸油和合成气。微藻中既富含甘油，又富含废气。AL-PBR内部的混合，传质，动力学和光照条件是通过保持一些无量纲数来选择的（$\text{回覆}$， $\text{嘘}，{\text{ 达}}_{\text{II}}$ 和A）固定在实验室规模的值附近（分别为11000、1550、23、35）。 $\text{pH值}$，T，养分相关比率和光强度在室内条件下的最佳范围内进行调整。AL-PBR的数量，进料/萃取时间间隔和流量是通过平衡整个中试装置的质量来设计的，以便在连续的准零废物中运行。

室外测试证实，12–15 AL-PBRs的总体积为125–155 L再利用从提供228 L d ^-1生物柴油的生物柴油单元中产生的28.8 L d ^-1废水，再利用约90 m合成气燃烧装置出口的烟气³  h ^-1，发电功率为9–9.5 kW。电池在每个循环的初始浓度为约0.5 g L ^-1时工作，在提取时的浓度为约1.05 g L ^-1。