Removal of microbial and genetic contaminants from livestock wastewater using chemically enhanced primary treatment for agricultural irrigation

IF 7.3 2区环境科学与生态学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY

Environmental Technology & Innovation Pub Date : 2026-03-01 Epub Date: 2026-01-15 DOI:10.1016/j.eti.2026.104757

Hyun Min Jang , Eunsung Kan

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引用次数: 0

Abstract

Irrigation water from the livestock farm serves as a key pathway to disseminate microbial and genetic contaminants. In this study, the applicability of chemically enhanced primary treatment (CEPT) to lagoon-derived dairy farm wastewater was evaluated for the removal of microbial and genetic contaminants (i.e., antibiotic resistance genes (ARGs), and antibiotic resistance bacteria (ARB)), as well as conventional pollutants. Significant removal of both intracellular and extracellular ARGs was achieved at FeCl₃ dosages above 3 g/L during CEPT treatment. Furthermore, no total coliforms, E. coli, or cultivable ARB were detected following CEPT treatment at FeCl₃ dosages above 3 g/L. Considering these findings, CEPT is expected to mitigate the adverse effects of microbial and genetic contaminants resulting from agricultural irrigation. Future efforts should focus on optimizing CEPT to enhance its economic efficiency across different conditions.

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农业灌溉用化学强化一级处理去除牲畜废水中的微生物和遗传污染物

来自畜牧场的灌溉水是传播微生物和遗传污染物的关键途径。本研究评估了化学强化一级处理（CEPT）对泻湖奶牛场废水去除微生物和遗传污染物（即抗生素抗性基因（ARGs）和抗生素抗性细菌（ARB））以及常规污染物的适用性。在CEPT处理期间，FeCl₃的剂量大于3 g/L时，细胞内和细胞外的ARGs都得到了显著的去除。此外，在FeCl₃剂量大于3 g/L的CEPT处理下，没有检测到总大肠菌群、大肠杆菌或可培养的ARB。考虑到这些发现，CEPT有望减轻农业灌溉造成的微生物和遗传污染物的不利影响。未来的工作重点是优化CEPT，以提高其在不同条件下的经济效率。

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

Environmental Technology & Innovation Environmental Science-General Environmental Science

CiteScore

14.00

自引率

4.20%

发文量

435

审稿时长

74 days

期刊介绍： Environmental Technology & Innovation adopts a challenge-oriented approach to solutions by integrating natural sciences to promote a sustainable future. The journal aims to foster the creation and development of innovative products, technologies, and ideas that enhance the environment, with impacts across soil, air, water, and food in rural and urban areas. As a platform for disseminating scientific evidence for environmental protection and sustainable development, the journal emphasizes fundamental science, methodologies, tools, techniques, and policy considerations. It emphasizes the importance of science and technology in environmental benefits, including smarter, cleaner technologies for environmental protection, more efficient resource processing methods, and the evidence supporting their effectiveness.