Performance in nitrogen, turbidity and phosphorus removal in a RAS using moving bed settler and membrane aerated biofilm reactor

IF 4.3 2区农林科学 Q2 AGRICULTURAL ENGINEERING

Aquacultural Engineering Pub Date : 2025-04-21 DOI:10.1016/j.aquaeng.2025.102547

Adriana Vanessa Mutumbajoy Benavides , Iván Andrés Sánchez-Ortiz , Tsunao Matsumoto

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引用次数: 0

Abstract

The objective of this research was to evaluate the efficiency in the removal of nitrogen, phosphorus and turbidity in a Recirculating Aquaculture System (RAS) for Nile tilapia culture by means of a moving bed settler (MBS) and a membrane aerated biofilm reactor (MABR). In a RAS for the cultivation of Oreochromis niloticus with a biomass density of 21.7 kg/m³, the performance of an MBS operated with hydraulic retention time (HRT) of 0.6 hours and of an MABR with HRT of 1.2 hours was evaluated. The performance of the treatment units was determined by calculating the nitrogen removal efficiency in the forms of total nitrogen (TN), un-ionized ammonia (NH₃-N), ammonium (NH₄⁺-N), total ammonia nitrogen (TAN), nitrites (NO₂-N), nitrates (NO₃-N), turbidity and total phosphorus (TP). The mean total removal efficiencies of the monitored water quality parameters were 98.6 % for turbidity, 17.5 % for TN, 42.8 % for TAN, 55.9 % for NO₂-N, 36.3 % for NO₃-N and 29.7 % for TP. The RAS treatment units, operated with relatively low HRT, demonstrated good performance in maintaining water quality in favorable conditions for tilapia farming.

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移动床沉降器和膜曝气生物膜反应器在RAS中的氮、浊度和磷去除性能

本研究旨在评估尼罗罗非鱼循环水养殖系统（RAS）中移动床沉淀器（MBS）和膜充气生物膜反应器（MABR）去除氮、磷和浊度的效率。在生物量密度为 21.7 公斤/立方米的罗非鱼养殖系统中，对水力停留时间为 0.6 小时的移动床沉淀器和水力停留时间为 1.2 小时的膜充气生物膜反应器的性能进行了评估。通过计算总氮 (TN)、未电离氨 (NH3-N)、铵 (NH4+-N)、总氨氮 (TAN)、亚硝酸盐 (NO2-N)、硝酸盐 (NO3-N)、浊度和总磷 (TP) 等形式的脱氮效率来确定处理装置的性能。监测水质参数的平均总去除率分别为：浊度 98.6%、TN 17.5%、TAN 42.8%、NO2-N 55.9%、NO3-N 36.3%和 TP 29.7%。在相对较低的 HRT 条件下运行的 RAS 处理装置在保持水质的良好性能方面表现出色，为罗非鱼养殖提供了有利条件。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Aquacultural Engineering 农林科学-农业工程

CiteScore

8.60

自引率

10.00%

发文量

审稿时长

>24 weeks

期刊介绍： Aquacultural Engineering is concerned with the design and development of effective aquacultural systems for marine and freshwater facilities. The journal aims to apply the knowledge gained from basic research which potentially can be translated into commercial operations. Problems of scale-up and application of research data involve many parameters, both physical and biological, making it difficult to anticipate the interaction between the unit processes and the cultured animals. Aquacultural Engineering aims to develop this bioengineering interface for aquaculture and welcomes contributions in the following areas: – Engineering and design of aquaculture facilities – Engineering-based research studies – Construction experience and techniques – In-service experience, commissioning, operation – Materials selection and their uses – Quantification of biological data and constraints