کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4389737 | 1618046 | 2013 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Denitrification of groundwater using Brewer's spent grain as biofilter media Denitrification of groundwater using Brewer's spent grain as biofilter media](/preview/png/4389737.png)
This study evaluated Brewer's spent grain as media for denitrification processes in treating groundwater. A laboratory scale reactor was inoculated with anaerobic sludge from a waste-water treatment plant. Optimization of running conditions were investigated under various parameters including: hydraulic retention time (HRT), influent nitrate loading and pH. The experimental results demonstrate that the optimum reaction parameters were: HRT = 100 min; N-NO3 = 200 mg L−1; pH = 7.5–7.9. Vertical study showed that hydraulic retention time and pH affect significantly the nitrate removal, while nitrate loading do not affect the denitrification process.
► Brewer's spent grain was used as media for denitrification processes in treating groundwater.
► Optimization of running conditions was investigated under various parameters.
► Optimum reaction parameters were: HRT = 100 min; N-NO3 = 200 mg L−1; pH = 7.5–7.9.
► Results showed that hydraulic retention time and pH affect significantly the nitrate removal.
Journal: Ecological Engineering - Volume 52, March 2013, Pages 70–74