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首页> 外文期刊>Journal of Environmental Science and Health >Stability and removal of spironolactone from wastewater
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Stability and removal of spironolactone from wastewater

机译：废水中螺内酯的稳定性和去除

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Stability and removal of spironolactone (SP) from wastewater produced at Al-Quds University Campus were investigated. Kinetic studies on both pure water and wastewater coming from secondary treatment (activated sludge) demonstrated that the potassium-sparing diuretic (water pill), spironolactone, underwent degradation to its hydrolytic derivative, canrenone, in both media. The first-order hydrolysis rate of SP in activated sludge at 25 degrees C (3.80 x 10(-5) s(-1)) was about 49-fold larger than in pure water (7.4 x 10(-7) s(-1)). The overall performance of the wastewater treatment plant (WWTP) installed in the University Campus was assessed showing that more than 90% of spiked SP was removed together with its newly identified metabolites. In order to look for a technology to supplement or replace ultra-filtration membranes, the effectiveness of adsorption and filtration by micelle-clay filters for removing SP was tested in comparison with activated charcoal. Batch adsorption in aqueous suspensions was well described by Langmuir isotherms, showing a better removal by the micelle-clay material. Filtration of SP water solutions by columns filled with a mixture of sand and a micelle-clay complex showed complete removal of the drug at concentrations higher than in sand/activated-charcoal filled filters.
机译：研究了圣城大学校园产生的废水中螺内酯（SP）的稳定性和去除情况。对来自二级处理（活性污泥）的纯净水和废水的动力学研究表明，保钾利尿剂（水丸）螺内酯在两种介质中均降解为水解衍生物烯睾丙内酯。在25摄氏度（3.80 x 10（-5）s（-1））下活性污泥中SP的一级水解速率约为纯水（7.4 x 10（-7）s（-）的49倍1））。评估了安装在大学校园中的废水处理厂（WWTP）的总体性能，结果表明，去除了超过90％的加标SP及其新发现的代谢物。为了寻找一种补充或替换超滤膜的技术，与活性炭比较，测试了用胶束-粘土过滤器去除SP的吸附和过滤效果。 Langmuir等温线很好地描述了在水悬浮液中的批次吸附，显示出通过胶束-粘土材料的更好去除。用装有沙子和胶束-粘土复合物混合物的柱子对SP水溶液进行过滤，结果表明，在比沙子/活性炭填充的过滤器中浓度更高的情况下，可以完全除去药物。

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