Removal of fenamiphos, imidacloprid, and oxamyl pesticides from water by microalgal Nannochloropsis oculata biomass and their determination by validated HPLC method.

IF 1.4 4区农林科学 Q4 ENVIRONMENTAL SCIENCES

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes Pub Date : 2023-01-01 DOI:10.1080/03601234.2023.2195530

Azza G A Reyad, Moustafa A Abbassy, Gehan I Kh Marei, Entsar I Rabea, Mohamed E I Badawy

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Abstract

The present study assessed the removal of fenamiphos, imidacloprid, and oxamyl pesticides from water using algal Nannochloropsis oculata biomass. Several factors, such as algal biomass concentration, incubation time, and pesticide concentration, were studied for their impact on pesticide removal. Analysis and quantification of pesticides by rapid HPLC have been developed and validated. The optimum conditions were obtained at 15 min, 50 mg/L of pesticide concentration, and 4,500 mg/L of the algal biomass with 92.24% and 90.43% removal for fenamiphos and imidacloprid, respectively. While optimum parameters of 10 min incubation, 250 mg/L of pesticide concentration, and 2,750 mg/L of the algal biomass exhibited 67.34% removal for oxamyl. N. oculata, marine microalgae, successively removed different concentrations of the tested pesticides from water, and the algal biomass showed a potential reduction of pesticides in polluted water samples.

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微藻纳米绿藻生物量去除水中苯氨磷、吡虫啉和恶氨酰农药及其高效液相色谱测定

本研究评估了利用纳米绿藻生物量去除水中的虫胺磷、吡虫啉和恶氨酰农药。研究了藻类生物量浓度、孵育时间和农药浓度等因素对农药去除率的影响。建立并验证了快速高效液相色谱法分析和定量农药的方法。最佳条件为15 min、农药浓度为50 mg/L、藻类生物量为4500 mg/L，对虫胺磷和吡虫啉的去除率分别为92.24%和90.43%。孵育10 min、农药浓度为250 mg/L、藻类生物量为2750 mg/L时，对oxamyl的去除率为67.34%。海洋微藻(N. oculata)先后从水中去除不同浓度的农药，藻类生物量显示出污染水样中农药的潜在减少。

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来源期刊

Journal of Environmental Science and Health Part B-pesticides Food Contaminants and Agricultural Wastes 环境科学-公共卫生、环境卫生与职业卫生

CiteScore

4.00

自引率

5.00%

发文量

审稿时长

1 months

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