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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Simin Li Baofen Miao Zhennan Shi Wei Zhang |
| Copyright Year | 2010 |
| Description | Author affiliation: College of Urban Construction, Hebei University of Engineering, Handan, China (Simin Li; Baofen Miao; Zhennan Shi; Wei Zhang) |
| Abstract | The biological sand filter process was used to treat the secondary effluent of WWTP, and the influences of water temperature, hydraulic loading and carbon nitrogen ratio on the performance of denitrification by biological sand filter were separately studied. The result showed that with the increasing of water temperature, the denitrification performance of biological sand filter was improved significantly. When the hydraulic loading increased from 3 $m^{3}/(m^{2}·h)$ to 3 $m^{3}/(m^{2}·h),$ and then increased to 4 $m^{3}/(m^{2}·h),$ the average removal rate of TN dropped by 2.08% and 11.15%, respectively. With the increasing of the hydraulic loading, the downtrend of denitrification performance was obvious. The carbon nitrogen ratio was increased from 2.5∶1 to 3.5∶1, and to 4.0∶1, and then to 4.5∶1, the average removal rate of TN was gradually enhanced. But when the carbon nitrogen ratio was 4.5∶1, the average concentration of CODCr was 54.08mg/L in effluent, which was slightly beyond the level of A standard. Considering the influence of hydraulic loading and carbon nitrogen ratio on denitrification performance, concentration of organic matter in effluent and economic cost, in this experiment the optimal control parameters were determined that the hydraulic loading and carbon nitrogen ratio were 3 $m^{3}/m^{2}$ and 3.5∶1, respectively. |
| Starting Page | 1706 |
| Ending Page | 1709 |
| File Size | 185514 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424477371 |
| e-ISBN | 9781424477395 |
| DOI | 10.1109/MACE.2010.5535276 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-06-26 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Hydraulic loading Temperature Effluents Educational institutions Nitrogen Denitrification performance Water temperature Biological materials Carbon nitrogen ratio Filters Optimal control Chromium Biological sand filter Cost function Biological control systems |
| Content Type | Text |
| Resource Type | Article |
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