Botany Department, Faculty of Science, Fayoum University, Fayoum, 63514, Egypt.
Water Management Research Institute, National Water Research Center NWRC, Shubra El Kheima, Egypt.
Sci Rep. 2024 Aug 14;14(1):18849. doi: 10.1038/s41598-024-68990-8.
This study aimed to assess the current water quality status across various regions within the Fayoum depression by examining water canals, drains, and potential contaminants impacting public health and the local ecosystem. Additionally, an adsorption treatability investigation was conducted on various antibiotics identified during the assessment. Fifteen sampling points were selected across the Fayoum depression, covering surface water bodies and agricultural drainage systems during both winter and summer seasons. Physico-chemical, microbiological, and antibiotic analyses were performed on collected water samples. The water quality parameters investigated included pH, electrical conductivity, total dissolved solids (TDS), total coliforms, fecal coliforms, and concentrations of antibiotics such as ciprofloxacin and tetracycline. The findings revealed significant variations in water quality parameters among different water sources, categorizing them into three types: irrigation canals, polluted canals, and drains. High contamination levels were observed in certain water canals and drains due to untreated sewage and agricultural drainage discharge. Notably, elevated TDS levels (exceeding 1200 mg/L), microbial indicators count (with total coliforms reaching up to 2.3 × 10 CFU/100 mL), and antibiotics (with concentrations of ciprofloxacin and tetracycline exceeding 4.6 µg/L) were detected. To mitigate antibiotic contamination, a Phyto-adsorption treatability study using magnetite nanoparticles prepared with Phragmites australis plant extract demonstrated promising results, achieving complete removal of high antibiotic concentrations with an adsorption capacity of up to 67 mg/g. This study provides updated insights into water quality in the Fayoum depression and proposes a novel approach for addressing antibiotic contamination, potentially safeguarding human and environmental health.
本研究旨在通过检测影响公共健康和当地生态系统的水道、排水渠和潜在污染物，评估法尤姆洼地内各地区的当前水质状况。此外，还对评估过程中发现的各种抗生素进行了吸附处理可行性研究。在法尤姆洼地内选择了 15 个采样点，涵盖了冬季和夏季的地表水和农业排水系统。对采集的水样进行了理化、微生物和抗生素分析。研究调查的水质参数包括 pH 值、电导率、总溶解固体（TDS）、总大肠菌群、粪大肠菌群以及环丙沙星和四环素等抗生素的浓度。研究结果表明，不同水源之间的水质参数存在显著差异，可将其分为三类：灌溉渠、污染渠和排水渠。由于未经处理的污水和农业排水排放，某些水道和排水渠的污染程度较高。值得注意的是，某些水道和排水渠中 TDS 水平（超过 1200mg/L）、微生物指标计数（总大肠菌群高达 2.3×10 CFU/100 mL）和抗生素（环丙沙星和四环素浓度超过 4.6μg/L）含量较高。为了减轻抗生素污染，使用从香蒲植物中提取的磁铁矿纳米粒子进行了植物吸附处理可行性研究，结果表明该方法具有良好的应用前景，可实现高达 67mg/g 的吸附容量，完全去除高浓度抗生素。本研究提供了法尤姆洼地水质的最新信息，并提出了一种解决抗生素污染的新方法，可能有助于保障人类和环境健康。
