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Coupling cold plasma and membrane photobioreactor for enhanced fouling control during livestock excreta treatment
Chemosphere ( IF 8.8 ) Pub Date : 2020-11-20 , DOI: 10.1016/j.chemosphere.2020.129031
Jae-Cheol Lee , Rumi Park , Kyu Seon Yoo , Hyun-Woo Kim

To treat high-turbidity livestock excrements (LE), this study suggests a synergistic system coupling cold plasma (CP) and membrane photobioreactor (MPBR). During the continuous operation of the integrated system, physico-chemical oxidation of CP decompose turbidity and total suspended solids (TSS) up to 99.9%. The microalgal concentration of Scenedesmus obliquus in the following MPBR reach as high as 1,944 mg D.W./L, which indicates the residual organic and inorganic substances were actively consumed by phototrophic metabolism. Pearson correlation analysis confirms this synergistic relationship of turbidity and TSS with biological growth parameters such as biomass growth, soluble microbial products, and extracellular polymeric substances. Results evidence that the turbidity and TSS are directly connected to the microalgal growth in this integrated system thus the role of CP is crucial to achieving the LE treatment goal. Overall, this study provides a guideline to support the enhanced treatment strategy to control LE with the production of bioresources for sustainable carbon and nutrient cycles.



中文翻译:

耦合冷血浆和膜光生物反应器以增强牲畜排泄物处理过程中的结垢控制

为了治疗高浊度的牲畜排泄物(LE),这项研究提出了一种结合了冷血浆(CP)和膜光生物反应器(MPBR)的协同系统。在集成系统的连续运行过程中,CP的物理化学氧化分解了浊度,总悬浮固体(TSS)高达99.9%。斜生场景藻的微藻浓度在随后的MPBR中,DBR / L高达1,944 mg DW / L,这表明残留的有机和无机物质被光养代谢活跃地消耗掉。皮尔逊相关分析证实了浊度和TSS与生物生长参数(例如生物量生长,可溶性微生物产物和细胞外聚合物)的这种协同关系。结果表明,浊度和TSS与该集成系统中的微藻生长直接相关,因此CP的作用对于实现LE治疗目标至关重要。总体而言,本研究提供了指导方针,以支持通过增强生物资源生产可持续碳和养分循环来控制LE的增强治疗策略。

更新日期:2020-11-21
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