This work focuses on the use of dynamic membrane filtration with cheap membranes manufactured from acrylonitrile butadiene styrene polymer for dewatering of Chlorella sorokiniana microalgae strain.

Dynamic filtration based on vibration was used at pilot scale and compared to conventional cross-flow filtration to demonstrate how fouling can be greatly minimized. Experiments were carried-out with different types of commercial membranes from different pore sizes and materials such as polyethersulfone or polyacrylonitrile.

ABS membranes were produced, characterized (scanning electron microscopy, contact angle and porosity measurements) and tested with conventional and dynamic filtration. Composition of acrylonitrile butadiene styrene polymeric solution as well as conditions of membrane preparation were examined in order to obtain a useable membrane for microalgae filtration. Acrylonitrile butadiene styrene membranes offered promising results in terms of permeability when applied to both filtration techniques for Chlorella sorokiniana dewatering. The influence of different concentrations of microalgae culture as a feed for dynamic membrane filtration was examined. To confirm total microalgae rejection the optical density of feed, permeate and retentate was studied in all experiments.

Acrylonitrile butadiene styrene material is order of magnitudes cheaper than conventional membrane materials. Combined with dynamic filtration, both may turn membrane filtration into a preferred technology for microalgae dewatering.

这项工作的重点是利用动态膜过滤技术和廉价的由丙烯腈-丁二烯-苯乙烯聚合物制成的膜对脱水小球藻微藻菌株进行脱水。

在中试规模上使用了基于振动的动态过滤，并将其与传统的错流过滤进行了比较，以证明如何最大程度地减少结垢。使用具有不同孔径和材料（例如聚醚砜或聚丙烯腈）的不同类型的商用膜进行了实验。

制备，表征（扫描电子显微镜，接触角和孔隙率测量）ABS膜并通过常规和动态过滤进行测试。检查了丙烯腈丁二烯苯乙烯聚合物溶液的组成以及膜的制备条件，以获得可用于微藻过滤的膜。当将丙烯腈丁二烯苯乙烯膜应用于两种用于小球藻脱水的过滤技术时，在渗透率方面提供了令人鼓舞的结果。检查了不同浓度的微藻培养物作为动态膜过滤进料的影响。为了确认总的微藻排泄率，在所有实验中都对进料，渗透液和截留液的光密度进行了研究。

丙烯腈丁二烯苯乙烯材料比常规膜材料便宜一个数量级。结合动态过滤，两者都可以使膜过滤成为微藻脱水的首选技术。