کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8852154 | 1618775 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The activated iron system for phosphorus recovery in aqueous environments
ترجمه فارسی عنوان
سیستم آهن فعال برای بازیابی فسفر در محیط های آبی
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کلمات کلیدی
آهن فعال بازیافت فسفر، آهن خالص، مگنتیت، یون آهن
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
Finding a good sorbent for phosphorus (P) recovery from the aquatic environment is critical for preventing eutrophication and providing P resources. The activated iron system (mainly consisted of zero-valent iron (ZVI), Fe3O4 and Fe2+) has been reported to exhibit a favorable performance towards various contaminants in wastewater, but its effect on P recovery has not been studied systematically. In this study, we used Fe2+-nitrate pretreatment reaction to prepare the activated iron system and then applied it to P recovery. Results show that more than 99% P was removed from water in 60â¯min; co-existing anions (NO3â, Clâ and SO42â) and natural organic matter (NOM) had little effect on P removal. The P removal capacity of activated iron system is very high compared with currently reported sorbents. Externally-supplied Fe2+ plays an important role on P removal in the system. Regeneration study shows that the activated iron system exhibited stable P recovery ability by using 0.1â¯M NaOH solution. Various methods were applied to characterize the ZVI and iron corrosion, and results conclude that sorption precipitation, and co-precipitation contribute to P removal. This method will be promising and have an application potential in the field for efficient and cost-effective recovery of P with cheap microscale zero valent iron.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 196, April 2018, Pages 153-160
Journal: Chemosphere - Volume 196, April 2018, Pages 153-160
نویسندگان
Jun Wan, Xiaoqing Jiang, Tian C. Zhang, Jiong Hu, Dana Richter-Egger, Xiaonan Feng, Aijiao Zhou, Tao Tao,