این سایت در حال حاضر پشتیبانی نمی شود و امکان دارد داده های نشریات بروز نباشند
مجله بهداشت محیط و توسعه پایدار، جلد ۲، شماره ۱، صفحات ۱۸۷-۹۵
عنوان فارسی
چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Nitrate Removal from Aqueous Solutions by Magnetic Nanoparticle
چکیده انگلیسی مقاله Introduction: Due to causing methemoglobinemia, different cancers, and teratogen effects in human nitrate contamination of water resources has become a critical environmental problem Therefore, the aim of this work was to determine the optimum condition of nitrate sorption onto magnetic nanoparticle. Materials and Methods: The removal of nitrate from aqueous solutions by magnetic nanoparticles has been studied through using batch adsorption method. X-ray diffraction (XRD), Transmission Electron Microscopy (TEM), and Scanning Electron Microscopy (SEM) was applied to characterize the synthesized Fe3O4. The effect of pH, nano-magnetic, adsorbent dose, initial concentration of nitrate, and contact time were investigated. Results: According to SEM and TEM images, the adsorbent particles were nanosized and spheroidal; the sizes were about 20–30 nm. The experiments' results indicated that the optimum adsorbent dose was 750 mg in 1000 ml of solution, with a contact time of 90 min, while the optimum pH was 9. The kinetic models for nitrate adsorption showed rapid sorption dynamics by both first-order kinetic (R2 = 0.97) and second-order kinetic (R2 = 0.96) models. Nitrate adsorption equilibrium data were fitted well to the Freundlich isotherm than Langmuir isotherm. Conclusion: The results showed that, magnetic nanoparticles can be used as a low cost and efficient adsorbent for removal of nitrate from aqueous solutions.
کلیدواژه‌های انگلیسی مقاله Adsorption, Nitrate, Magnetite Nanoparticles, Kinetics
نویسندگان مقاله حمیدرضا پورزمانی | hamid reza pourzamani
environment research center, research institute for primordial prevention of non-communicable disease, isfahan university of medical sciences, isfahan, iran, and department of environmental health engineering, school of health, isfahan university of medical sciences, isfahan, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

نظام الدین mengelīzadeh | nezamaddin mengelīzadeh
environment research committee, isfahan university of medical sciences, isfahan, iran, and student research committee and department of environmental health engineering, school of health, isfahan university of medical sciences, isfahan, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

محمد جلیل | mohammad jalil
environment research committee, isfahan university of medical sciences, isfahan, iran, and student research committee and department of environmental health engineering, school of health, isfahan university of medical sciences, isfahan, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

زهرا موسویان | zahra moosavian
department of health, isfahan university of medical sciences, isfahan, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی اصفهان (Isfahan university of medical sciences)

نشانی اینترنتی http://jehsd.ssu.ac.ir/browse.php?a_code=A-10-1-29&slc_lang=en&sid=en
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/1981/article-1981-465331.pdf
کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده تخصصی
نوع مقاله منتشر شده اصیل
برگشت به: صفحه اول پایگاه   |   نسخه مرتبط   |   نشریه مرتبط   |   فهرست نشریات