Removal of Antibiotics in Breeding Wastewater Tailwater Using Microalgae-Based Process.

IF 2.7 4区环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES

Bulletin of Environmental Contamination and Toxicology Pub Date : 2025-01-25 DOI:10.1007/s00128-024-03971-1

Shutao Lin, Chunhai Shi, Haimei Wang, Xiaoli Ma, Jian Li, Siqin Chen, Niuniu Guo, Zhi Zhang

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引用次数: 0

Abstract

Ciprofloxacin (CIP) and oxytetracycline (OTC) are commonly detected antibiotic species in breeding wastewater, and microalgae-based antibiotic treatment technology is an environmentally friendly and cost-effective method for its removal. This study evaluated the effects of CIP and OTC on Scenedesmus sp. in the breeding wastewater tailwater and the removal mechanisms of antibiotics. The results showed that Scenedesmus sp could increase antibiotic tolerance by enhancing antioxidant system activity. Compared to CIP, Scenedesmus sp showed better performance for OTC removal, the removal efficiencies were 100%, 96.87%, 95.75%, 90.18% and 83.91% at 0.1, 0.5, 1, 5, and 10 mg L^- 1 OTC, respectively. The removal routes indicated that CIP was mainly removed by biodegradation (38.88%) and photolysis (14.30%) whereas OTC was mainly removed by hydrolysis (43.47%) and biodegradation (33.45%). Product toxicity predictions showed that most of the degradation products of CIP and OTC were less toxic than their parent compounds, confirming the feasibility of microalgae biotreatment for antibiotic removal.

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微藻法去除养殖废水尾水中抗生素的研究

环丙沙星（CIP）和土霉素（OTC）是养殖废水中常见的抗生素种类，基于微藻的抗生素处理技术是一种环保、经济的去除方法。本研究评价了CIP和OTC对养殖废水尾水中场景菌的影响及其对抗生素的去除机理。结果表明，黄芪可通过增强抗氧化系统活性来提高抗菌素耐受性。与CIP相比，Scenedesmus sp在0.1、0.5、1、5和10 mg L- 1 OTC条件下对OTC的去除率分别为100%、96.87%、95.75%、90.18%和83.91%。结果表明，CIP主要通过生物降解（38.88%）和光降解（14.30%）去除，OTC主要通过水解（43.47%）和生物降解（33.45%）去除。产物毒性预测表明，CIP和OTC的大部分降解产物毒性低于其母体化合物，证实了微藻生物处理去除抗生素的可行性。

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来源期刊

Bulletin of Environmental Contamination and Toxicology 环境科学-毒理学

CiteScore

5.60

自引率

3.70%

发文量

230

审稿时长

1.7 months

期刊介绍： The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.