School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China; State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, China.
School of Food and Biological Engineering, Jiangsu University, Zhenjiang 212013, China.
Bioresour Technol. 2022 Jul;356:127272. doi: 10.1016/j.biortech.2022.127272. Epub 2022 May 5.
Globally, the release of acrylonitrile-butadienestyrene (ABS) wastewater from numerous industries is a serious concern. Recently, oil-rich filamentous algae Tribonema sp has been grown utilizing toxic but nutrient-rich ABS effluent. Here, Tribonema sp. was cultivated under intervention of different magneto-electric combinatory fields (MCFs) (control, 0.6 V/cm, 1 h/d-1.2 V/cm, 1 h/d-0.6 V/cm, and 1 h/d-1.2 V/cm). Results showed MCF (1 h/d-0.6 V/cm) intervention increased the biomass by 9.7% (2.4 g/L) combined with high removal efficiencies (95% and 99%) of ammonium nitrogen and total phosphorus. The chemical oxygen demand (COD) removal rate increased to 82%, 6% higher than the control. Moreover, MCF of 1 h/d-0.6 V/cm significantly increased lipid and carbohydrate by 7.71% and 4.73% respectively. MCF increased premium fatty acid content such as palmitic acid (C16:0), myristic acid (C14: 0), and hexadecenoic acid (C16:1). MCF intervention also supported a diverse microbial flora, offering a favorable solution for ABS wastewater treatment.
全球范围内，大量工业排放丙烯腈-丁二烯-苯乙烯（ABS）废水是一个严重的问题。最近，富含油的丝状藻类 Tribonema sp. 已被利用富含毒性但营养丰富的 ABS 废水进行培养。在这里，Tribonema sp. 在不同磁电组合场（MCFs）（对照、0.6 V/cm、1 h/d-1.2 V/cm、1 h/d-0.6 V/cm 和 1 h/d-1.2 V/cm）的干预下进行培养。结果表明，MCF（1 h/d-0.6 V/cm）干预使生物量增加了 9.7%（2.4 g/L），同时对铵氮和总磷的去除效率也很高（95%和 99%）。化学需氧量（COD）去除率提高到 82%，比对照提高了 6%。此外，MCF 为 1 h/d-0.6 V/cm 可分别显著增加 7.71%和 4.73%的脂质和碳水化合物。MCF 增加了棕榈酸（C16:0）、肉豆蔻酸（C14:0）和十六烯酸（C16:1）等优质脂肪酸的含量。MCF 干预还支持了多样化的微生物菌群，为 ABS 废水处理提供了有利的解决方案。
