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在循环水产养殖系统中使用下游悬浮海绵反应器和Poly (?? 丁酸合适物) 作为可生物降解的电子捐赠者进行循环水产养殖系统中提升的去除,以去除酸盐

Wilasinee Kotcharoen¹, Nur Adlin², Takahiro Watari³

¹Faculty of Biological Science and Technology, Kanazawa University, Ishikawa 920-1192, Japan.

Bioresource technology

|March 14, 2026

概括

集成到下游悬浮海绵 (DHS) 反应器中的聚乙烯糖酸-共酸盐 (PBSA) 有效地在循环水产养殖系统 (RAS) 中去除酸盐. 这种生物聚合物为水质管理提供了可持续的,具有成本效益的解决方案.

科学领域:

水产养殖工程水产养殖工程
环境微生物学环境微生物学
生物聚合物降解过程

背景情况:

酸盐的积累是水产养殖系统 (RAS) 重循环的一个重大挑战,阻碍了可持续的强化.
有效的管理对于保持RAS的水质和鱼类健康至关重要.

研究的目的:

评估一个聚乙烯酸盐-同酸盐 (PBSA) 集成下游悬浮海绵 (DHS) 反应堆的长期,现场性能,用于在水RAS中同时化-脱.
评估PBSA的降解及其对DHS反应堆内的微生物群落的影响.
分析PBSA集成的酸盐去除DHS系统的成本效益.

主要方法:

在长时间内在现场运行水RAS与PBSA集成的DHS反应堆.
对氨,酸盐和酸盐水平进行水质监测.
扫描电子显微镜 (SEM) 和富里埃变换红外光谱 (FTIR) 用于PBSA降解分析.
脂酶测定和16S rRNA基因测序以表征微生物群落和酶活性.

主要成果:

水质保持稳定,总氨和酸盐低于0.3毫克-N L-1和酸盐低于50毫克-N L-1,PBSA度为3.31.2克 L-1.1.
通过SEM和FTIR分析证实了PBSA逐渐降解,表明材料分解和化学结构的变化.
观察到微生物群落的功能分离,其中化细菌主导DHS海绵和化细菌富含PBSA.
成本分析估计,每公斤NO3−-N的酸盐去除成本在80-180美元之间,优化预计将成本降至每公斤NO3−-N的50-120美元.

结论:

与PBSA集成的DHS系统提供了RAS中酸盐控制的多功能策略,通过允许同时进行化-脱,而无需外部碳或性补充.
PBSA既是结构支持,也是持续的电子捐赠者,有效地将材料生物降解与微生物循环联系起来.
这种方法为低投入,生物聚合物集成的RAS设计提供了实用的蓝图,符合循环生物经济原则.

关键词:

可生物降解的聚合物.生物降解生物降解生物膜载体生物膜载体脱化过程中的脱.在化过程中,化聚 (丁烯糖酸盐-联合酸盐)

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