کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7708521 | 1497323 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of sulfate on hydrogen production from the organic fraction of municipal solid waste using co-culture of E. coli and Enterobacter aerogenes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of sulfate on hydrogen production from the organic fraction of municipal solid waste using co-culture of E. coli and Enterobacter aerogenes Effect of sulfate on hydrogen production from the organic fraction of municipal solid waste using co-culture of E. coli and Enterobacter aerogenes](/preview/png/7708521.png)
چکیده انگلیسی
In the present study, the effect of sulfate on the hydrogen production from the organic fraction of municipal solid (OFMSW) waste using co-culture of Enterobacter aerogenes and E. coli has been studied under varying pH conditions. The presence of sulfate in the feedstock declines hydrogen production efficiency. To evaluate the effect of sulfate on hydrogen production from OFMSW, COD/sulfate ratio of 17.5, 15.0, 12.5, 10.0, 7.5, 5.0 and 2.5 were applied at different pH conditions (i.e. pH 5.5, 6.0 and 6.5). The hydrogen production continuously declined with the decreasing COD/sulfate ratio and increase in pH. The cumulative hydrogen production decreased from 220.8 ± 10.5 mL in control to a minimum of 98.3 ± 10.5 mL, 74.4 ± 10.4 mL, and 44.6 ± 2.6 mL at pH 5.5, 6.0 and 6.5 respectively. The major content of gaseous composition included hydrogen and CO2 at higher COD/sulfate ratio and low pH, while H2S formation started with the decrease in COD/sulfate ratio and increase in the pH. Similarly, sulfate removal efficiency was found to be influenced by COD/sulfate ratio and pH condition. Soluble metabolite analysis revealed that total volatile fatty acid concentration was not affected by sulfate addition. Thus, Sulfate removal is essential prior to fermentation in order to improve hydrogen yield.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 2, 11 January 2018, Pages 676-684
Journal: International Journal of Hydrogen Energy - Volume 43, Issue 2, 11 January 2018, Pages 676-684
نویسندگان
Preeti Sharma, Uma Melkania,