محبوبترین نویسندگان :
نویسندگان مقالات پربازدید :
فناوری های پاک و سیاست زیست محیطی 2013
جزئیات رویداد
همایش ، رویداد ، ژورنال
اینستاگرام تی پی بین
حوزه های تحت پوشش رویداد

  • biosorption of heavy metals and cephalexin from secondary effluents by tolerant bacteria

    نویسندگان :
    کلمات کلیدی :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
    • تعداد بازدید: 1251
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     the biosorption of heavy metal ions and the antibiotic cephalexin from secondary effluents by the cell biomass of tolerant bacterial strains was investigated in this article. a total of 67 bacterial strains were isolated from a secondary effluents generated by sewage treatment plants. these strains were adapted to tolerate 6 mm nickel ions (ni2+) and 10 g l−1 cephalexin. bacterial cell biomass that has more than 150 mg g−1 biosorptive capacity was used for the biosorption under optimal conditions. the biosorption process was efficient in removing heavy metals: 87.63 % of cadmium, 74.61 % of copper, 58.32 % of nickel, 61.9 % of lead, and 94.26 % of zinc, respectively. the maximum biosorptive capacity of the bacterial cell biomass for cephalexin was 60 mg g−1. the efficiency of cephalexin biosorption was reduced by more than 40.83 and 82.88 % (living and dead cells, respectively) in the presence of 1 mg l−1 ni2+ ions compared with the control, whereas no biosorption by dead cell biomass was recorded in aqueous solutions contaminated with cadmium, zinc, copper, and lead ions. in conclusion, biosorption which efficiently removes metal ions, but not cephalexin, from secondary effluents is explained.

سوال خود را در مورد این مقاله مطرح نمایید :

با انتخاب دکمه ثبت پرسش، موافقت خود را با قوانین انتشار محتوا در وبسایت تی پی بین اعلام می کنم
مقالات جدیدترین رویدادها
مقالات جدیدترین ژورنال ها