Sorption potential of alkaline treated straw and a soil for sulfonylurea herbicide removal from aqueous solutions: An environmental management strategy
“…Pesticides are widely used to control diseases, weeds, and insects in agriculture. They can migrate to different parts of the environment as a source of contamination through spillages, cleaning, leakages, and runoff [13]. The application of pesticides as an efficient solution for pests control is increasing globally, owing to intensive agricultural practices [14,15].…”
“…Pesticides are widely used to control diseases, weeds, and insects in agriculture. They can migrate to different parts of the environment as a source of contamination through spillages, cleaning, leakages, and runoff [13]. The application of pesticides as an efficient solution for pests control is increasing globally, owing to intensive agricultural practices [14,15].…”
“…The degradation of atrazine (ATZ) and its by- Sorption. Cara et al (2017) investigated the possible adsorption of alkaline treated straw in a mixture with soil for the removal of sulfonylurea molecules from an aqueous solution. The results showed an increase in surface roughness, which was confirmed by the surface analysis of alkaline treated straw with the help of scanning electron microscopy and that alkaline treated straw treated with has good biosorption characteristics.…”
This paper highlights scientific literature that was published in the year 2017 related to the presence of pesticides and herbicides in the environment. The review on pesticides and herbicides is divided into four sections with focus on toxicology, ecology, risk assessment, modeling, and treatment strategies.
“…Sulfometuron methyl, which was the first commercially available SUH, was registered by DuPont Corporation in 1982 . However, SUHs have been found to be environmental contaminants and harmful to human health . Maximum residue limits for SUHs in soil and agricultural products have been established in many countries and by many organizations.…”
Here, we describe a simple one-pot solvothermal method for synthesizing MIL-101(Fe)@polydopamine@Fe O composites from polydopamine-modified Fe O particles. The composite was used as a magnetic adsorbent to rapidly extract sulfonylurea herbicides. The herbicides were then analyzed by high-performance liquid chromatography. The best possible extraction efficiencies were achieved by optimizing the most important extraction parameters, including desorption conditions, extraction time, adsorbent dose, salt concentration, and the pH of the solution. Good linearity was found (correlation coefficients >0.9991) over the herbicide concentration range 1-150 μg/L using the optimal conditions. The limits of detection (the concentrations giving signal/noise ratios of 3) were low, at 0.12-0.34 μg/L, and repeatability was good (the relative standard deviations were <4.8%, n = 6). The method was used successfully to determine four sulfonylurea herbicides in environmental water and vegetable samples, giving satisfactory recoveries of 87.1-108.9%. The extraction efficiency achieved using MIL-101(Fe)@polydopamine@Fe O was compared with the extraction efficiencies achieved using other magnetic composites (polydopamine@Fe O , Hong Kong University of Science and Technology (HKUST)-1@polydopamine@Fe O , and MIL-100(Fe)@polydopamine@Fe O ). The results showed that the magnetic MIL-101(Fe)@polydopamine@Fe O composites have great potential for the extraction of trace sulfonylurea herbicides from various sample types.
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