کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8843712 | 1616284 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Feed distribution based on sensing ammonium concentration after sub-feeding to achieve target effluent nitrogen concentration in sequencing batch reactors
ترجمه فارسی عنوان
توزیع خوراکی بر اساس غلظت آمونیاک حساس پس از تغذیه برای رسیدن به غلظت نیتروژن پساب هدف در توالی واکنشهای دسته ای
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
علوم زیست محیطی (عمومی)
چکیده انگلیسی
Conventional sequencing batch reactors (SBRs) have been developed based on nitrogen removal efficiency rather than the effluent nitrogen concentration as a design factor. The purpose of this study was to achieve the target effluent total nitrogen (TN) concentration regardless of the influent nitrogen concentration at 10â¯m3 pilot SBR. The desired nitrogen removal efficiency was achieved by distributing the influent one to four times in one cycle, but effluent TN concentration fluctuated as the influent nitrogen concentration varied. To achieve the target effluent TN concentration, the residual ammonia concentration after sub-feeding was adjusted to the target nitrogen concentration based on real-time ammonia sensing. When the residual ammonia concentration after sub-feeding was set at 10 or 5â¯mg NH4+-N Lâ1, the effluent TN concentration was 9.3â¯Â±â¯0.6 or 4.6â¯Â±â¯0.3â¯mgâ¯Lâ1, respectively, regardless of the influent TN concentration. Furthermore, complete nitrification was achieved under low temperature, from 7.2 to 13.1â¯Â°C, by controlling the aeration phase end point based on the real-time ammonia sensing. However, when the residual nitrate concentration was adjusted to a low level, the total phosphorus (TP) removal efficiency was high owing to an increase of phosphate release activity by polyphosphate accumulating organisms.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Biodeterioration & Biodegradation - Volume 133, September 2018, Pages 187-193
Journal: International Biodeterioration & Biodegradation - Volume 133, September 2018, Pages 187-193
نویسندگان
Daehee Choi, Janghyun Kim, Beomsuk Youn, Jinyoung Jung,