Performances of a novel BAF with ferromanganese oxide modified biochar (FMBC) as the carriers for treating antibiotics, nitrogen and phosphorus in aquaculture wastewater.

IF 3.5 3区生物学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Bioprocess and Biosystems Engineering Pub Date : 2024-11-01 Epub Date: 2024-08-12 DOI:10.1007/s00449-024-03073-6

Wenyu Yang, Xin Xin, Siqiang Liu

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Abstract

In this paper, a biological aerated filter (BAF) based on ferromanganese oxide-biochar (FMBC) was constructed to investigated the removal performance and mechanism for conventional pollutants and four kinds of antibiotic, in contrast of conventional zeolite loaded BAF (BAF-A) and bamboo biochar filled BAF (BAF-B). Results showed that the average removal efficiency of total nitrogen (TN), total phosphorus (TP) and antibiotics in a FMBC-BAF (named by BAF-C) were 52.97 ± 2.27%, 51.58 ± 1.92% and 70.36 ± 1.00% ~ 81.65 ± 0.99% respectively in running period (39-100 d), which were significantly higher than those of BAF-A and BAF-B. In the BAF-C, the expression of denitrification enzyme activities and the secretion of extracellular polymeric substance (EPS) especially polyprotein (PN) were effectively stimulated, as well as accelerated electron transfer activity (ETSA) and lower electrochemical impedance spectroscopy (EIS) were acquired. After 100 days of operation, the abundance of nitrogen, phosphorus and antibiotic removal functional bacteria like Sphingorhabdus (4.52%), Bradyrhizobium (1.98%), Hyphomicrobium (2.49%), Ferruginibacter (7.80%), unclassified_f_Blastoca tellaceae (1.84%), norank_f_JG30-KF-CM45 (6.82%), norank_f_norank_o_SBR1031 (2.43%), Nitrospira (2.58%) norank_f_Caldilineaceae (1.53%) and Micropruina (1.11%) were enriched. Mechanism hypothesis of enhanced performances of nutrients and antibiotics removal pointed that: The phosphorus was removed by adsorption and precipitation, antibiotics removal was mainly achieved through the combined action of adsorption and biodegradation, while nitrogen removal was realized by biologic nitrification and denitrification in a FMBC-BAF for aquaculture wastewater treatment.

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以氧化铁锰改性生物炭（FMBC）为载体的新型生物滤池处理水产养殖废水中抗生素、氮和磷的性能。

本文构建了一种基于氧化铁锰-生物炭（FMBC）的生物曝气滤池（BAF），研究了其对常规污染物和四种抗生素的去除性能和机理，与传统的沸石负载BAF（BAF-A）和竹生物炭填充BAF（BAF-B）进行了对比。结果表明，在运行期（39-100 d）内，FMBC-BAF（命名为 BAF-C）对总氮（TN）、总磷（TP）和抗生素的平均去除率分别为 52.97 ± 2.27%、51.58 ± 1.92%和 70.36 ± 1.00% ~ 81.65 ± 0.99%，明显高于 BAF-A 和 BAF-B。在 BAF-C 中，反硝化酶活性的表达和胞外聚合物质（EPS）尤其是多聚蛋白（PN）的分泌得到了有效的刺激，同时还获得了加速电子传递活性（ETSA）和较低的电化学阻抗谱（EIS）。运行 100 天后，氮、磷和抗生素去除功能菌的丰度分别为 Sphingorhabdus（4.52%）、Bradyrhizobium（1.98%）、Hyphomicrobium（2.49%）、Ferruginibacter（7.80%）、未分类_f_Blastoca tellaceae（1.84%）、norank_f_JG30-KF-CM45（6.82%）、norank_f_norank_o_SBR1031（2.43%）、Nitrospira（2.58%）、norank_f_Caldilineaceae（1.53%）和 Micropruina（1.11%）。营养物质和抗生素去除性能增强的机理假说指出：磷的去除是通过吸附和沉淀实现的，抗生素的去除主要是通过吸附和生物降解的联合作用实现的，而氮的去除是通过 FMBC-BAF 处理水产养殖废水中的生物硝化和反硝化实现的。

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

Bioprocess and Biosystems Engineering 工程技术-工程：化工

CiteScore

7.90

自引率

2.60%

发文量

147

审稿时长

2.6 months

期刊介绍： Bioprocess and Biosystems Engineering provides an international peer-reviewed forum to facilitate the discussion between engineering and biological science to find efficient solutions in the development and improvement of bioprocesses. The aim of the journal is to focus more attention on the multidisciplinary approaches for integrative bioprocess design. Of special interest are the rational manipulation of biosystems through metabolic engineering techniques to provide new biocatalysts as well as the model based design of bioprocesses (up-stream processing, bioreactor operation and downstream processing) that will lead to new and sustainable production processes. Contributions are targeted at new approaches for rational and evolutive design of cellular systems by taking into account the environment and constraints of technical production processes, integration of recombinant technology and process design, as well as new hybrid intersections such as bioinformatics and process systems engineering. Manuscripts concerning the design, simulation, experimental validation, control, and economic as well as ecological evaluation of novel processes using biosystems or parts thereof (e.g., enzymes, microorganisms, mammalian cells, plant cells, or tissue), their related products, or technical devices are also encouraged. The Editors will consider papers for publication based on novelty, their impact on biotechnological production and their contribution to the advancement of bioprocess and biosystems engineering science. Submission of papers dealing with routine aspects of bioprocess engineering (e.g., routine application of established methodologies, and description of established equipment) are discouraged.