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开发一种性无化脱系统,用于循环水产养殖

Tatsuru Kamei¹, Honoka Atsuta², Suphatchai Rujakom³

¹Interdisciplinary Centre for River Basin Environment, University of Yamanashi, 4-4-37 Takeda, Kofu Yamanashi, 400-8510, Japan.

Journal of environmental management

|September 20, 2025

概括

性无化 (HD) 为循环水产养殖系统 (RAS) 提供了一种低毒性方法. 一个新的HD系统有效地去除了,并支持了鱼类的生长,没有负面影响.

科学领域:

环境微生物学环境微生物学
水产养殖工程水产养殖工程
生物技术是生物技术.

背景情况:

再循环水产养殖系统 (RAS) 需要有效的去除来保持水质.
性脱 (HD) 使用H2作为电子捐赠体,为RASs中去除提供潜在的低毒性替代品.
关于在RAS中应用HD的研究有限,突出了系统开发和优化方面的挑战.

研究的目的:

开发和评估一个封闭的,不加压的,滴水过器类型的HD系统,用于在实验室规模的RAS中去除.
评估HD系统对Oncorhynchus mykiss培养中的鱼类生长和生存的影响.
描述HD系统内的微生物群落和脱基因丰富度.

主要方法:

构建和运行一个新的滴水过器类型的高清系统,集成到实验室规模的RAS.
测量去除的速率和计算每克去除的的H2和CO2消耗.
使用分子技术分析细菌群体组成 (占主导地位的种群Thauera和Dechloromonas) 和大量的脱基因 (narG, nirK, nirS, nosZ).
在100天的实验期内监测鱼类的生长 (总体重增加) 和死亡率.

主要成果:

高压系统在1小时的液压保留时间内实现了504.0gN/m3/d的最大去除率.
该系统需要5.5L的H2和2.1L的CO2来去除1g的.
确定的主导细菌种群是Thauera和Dechloromonas,其中关键的脱基因的丰富性增加.
霍乱污水的循环并没有对鱼类生长产生负面影响,在实验期间没有观察到死亡率.

结论:

开发的滴水过器类型的HD系统在RAS中有效地去除酸盐-.
HD是一种生物相容的RAS脱化策略,支持鱼类的生长和生存.
这项研究为开发用于水产养殖的先进,环保的脱系统提供了基础.

关键词:

水产养殖是水产养殖的一种方式.自转型脱化自转型脱化气是气体中的气.亚酸盐是一种酸盐.欺骗过器系统的欺骗

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