Efficient nutrient and antibiotics removal from aquaculture wastewater using different microalgae-based systems by agricultural multi-phytohormone induction

IF 4.6 2区生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Algal Research-Biomass Biofuels and Bioproducts Pub Date : 2024-08-01 DOI:10.1016/j.algal.2024.103659

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Abstract

The present study innovatively explores the impact of adding agricultural mixed plant hormones (gibberellin acid-indole-3-acetic acid-brassinolide, GIB) on simultaneously removing nutrients and antibiotics out of aquaculture wastewater within different four microalgae-bacteria-fungus symbionts. The results indicated that under the optimal symbiotic technology (Chlorella vulgaris+S395-2+Clonostachys rosea) and the best hormone GIB (20 mg L⁻¹) addition, both growth characteristics and photosynthetic performance of microalgae-bacteria-fungus symbionts were optimal. Under optimal treatment conditions, the average nutrient removal efficiency (TN and TP) reached 93.71 ± 5.02 % and 93.56 ± 4.07 %, separately, whereas the average removal efficiency of antibiotics (oxytetracycline, ciprofloxacin and sulfadiazine) were 99.46 ± 0.17 %, 89.53 ± 5.41 %, and 85.68 ± 6.82 %, respectively. This study offers a promising new direction for algal treatment technology, particularly in the concurrent removal of antibiotics and nutrients.

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通过农业多种植物激素诱导，利用不同的微藻系统高效去除水产养殖废水中的营养物质和抗生素

本研究创新性地探讨了在四种不同的微藻-细菌-真菌共生体中添加农用混合植物激素（赤霉素酸-吲哚-3-乙酸-芸苔素内酯，GIB）对同时去除水产养殖废水中的营养物质和抗生素的影响。结果表明，在最佳共生技术（小球藻+S395-2+蔷薇藻）和最佳激素 GIB（20 mg L-1）添加条件下，微藻-细菌-真菌共生体的生长特性和光合作用性能均达到最佳。在最佳处理条件下，营养物质（TN 和 TP）的平均去除率分别达到 93.71 ± 5.02 % 和 93.56 ± 4.07 %，而抗生素（土霉素、环丙沙星和磺胺嘧啶）的平均去除率分别为 99.46 ± 0.17 %、89.53 ± 5.41 % 和 85.68 ± 6.82 %。这项研究为藻类处理技术，尤其是同时去除抗生素和营养物质的技术，提供了一个前景广阔的新方向。

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来源期刊

Algal Research-Biomass Biofuels and Bioproducts BIOTECHNOLOGY & APPLIED MICROBIOLOGY-

CiteScore

9.40

自引率

7.80%

发文量

332

期刊介绍： Algal Research is an international phycology journal covering all areas of emerging technologies in algae biology, biomass production, cultivation, harvesting, extraction, bioproducts, biorefinery, engineering, and econometrics. Algae is defined to include cyanobacteria, microalgae, and protists and symbionts of interest in biotechnology. The journal publishes original research and reviews for the following scope: algal biology, including but not exclusive to: phylogeny, biodiversity, molecular traits, metabolic regulation, and genetic engineering, algal cultivation, e.g. phototrophic systems, heterotrophic systems, and mixotrophic systems, algal harvesting and extraction systems, biotechnology to convert algal biomass and components into biofuels and bioproducts, e.g., nutraceuticals, pharmaceuticals, animal feed, plastics, etc. algal products and their economic assessment