以下文章來自WX公主號“英語躍進”
If you've ever eaten?okra, then you'll know that the stuff can be pretty?gooey. According to new research, that quality could allow a compound from the plant to be used in a less toxic method of removing microplastics from drinking water.
如果你曾經(jīng)吃過秋葵厉膀,那么你就會知道它很粘稠授瘦。根據(jù)一項新的研究,基于這種特性湖蜕,可以利用該植物中的一種化合物去除飲用水中的微塑料,且這種凈水方法的毒性較小宋列。
It's an unfortunate fact that tiny fragments of plastic pollution are now spread throughout the world's waterways. The health effects of ingesting those fragments themselves are still not fully known, although one danger lies in the fact that the particles could absorb pollutants from the environment, then pass those pollutants on to us.
不幸的是昭抒,塑料微粒污染現(xiàn)在已經(jīng)遍布世界各地的水道。攝入這些微粒對健康的影響尚不完全清楚炼杖,其中一個危險在于這些顆粮曷常可能會從環(huán)境中吸收污染物,然后將這些污染物傳遞給我們嘹叫。
In order to remove plastic microparticles from municipal water supplies, water treatment plants typically add chemicals known as?flocculants?to the water. These form into clumps which the particles stick to – when the clumps are subsequently removed from the water, they take the particles with them.
為了去除市政供水中的塑料微粒婆殿,水處理廠通常會在水中添加絮凝劑,形成粘附顆粒的團塊——當(dāng)團塊從水中移除時罩扇,塑料顆粒也被帶走婆芦。
Unfortunately, flocculants such as polyacrylamide can themselves become toxic under certain conditions. Seeking a safer alternative, Dr. Rajani Srinivasan and colleagues at Texas' Tarleton State University looked to compounds extracted from several food-grade plants.
不幸的是,在某些條件下喂饥,聚丙烯酰胺等絮凝劑本身會變得有毒消约。為了尋找更安全的替代品,德克薩斯州塔爾頓州立大學(xué)的Rajani Srinivasan博士及其同事研究了從幾種食品級植物中提取的化合物员帮。
After some experimentation, it was found that polysaccharides from okra paired with those from fenugreek worked best at removing microplastics from seawater, while those same okra polysaccharides paired with those from tamarind were best for use on freshwater.
經(jīng)過一些實驗或粮,發(fā)現(xiàn)黃秋葵多糖和胡蘆巴多糖最適合去除海水中的微塑料,而黃秋葵多糖和羅望子多糖最適合用于淡水捞高。
All in all, depending on factors such as the ratio of the polysaccharides and the water source, the plant-based flocculants performed either as well as or better than polyacrylamide. And importantly, they could be used in existing water treatment plants, without any alterations to the facilities or processes.
總之氯材,根據(jù)多糖和水源的比例等因素渣锦,植物基絮凝劑的性能與聚丙烯酰胺相當(dāng)或更好。重要的是氢哮,它們可以用于現(xiàn)有的水處理廠袋毙,而無需對設(shè)施或工藝進行任何更改。
重點詞匯
okra?/?o?kr?/ n.秋葵
gooey?/?ɡu?i/ adj. 膠粘的
flocculant?/?fl?kj?l?nt/ n. 凝聚劑