Aeration control for simultaneous nitrification-denitrification in a biological aerated filter using internal model approach. Export

@article{citeulike:3743682, abstract = {Experience has shown that simultaneous nitrification/denitrification in a biological aerated filter is possible. However these systems react very sensitively to the aeration control strategies applied. Poorly adapted control strategies induce a strong decrease in treatment efficiency. A new control strategy for simultaneous N/DN is developed. The strategy proposed makes use of ammonia measurements and the inlet and outlet: a Feedback/Feedforward block. Passing by a calculation of the load to be eliminated, an estimation of the air flow velocity to be applied is carried out dynamically. A retroactive loop corrects this prediction in order to reach exactly the desired set point. This control approach has been implemented and tested at pilot plant scale for a period of 18 months. The pilot plant consists of two coupled BAF cells, reflecting closely industrial scale situations. Comparative studies reveal clearly the improved performance of the developed FF/FB control strategy compared to classical controllers. The benefits include 5\% increase in nitrogen removal performance and a reduction of 15 to 20\% in air requirement, offering a rapid return of investment costs.}, author = {Lemoine, C. and Payraudeau, M. and Meinhold, J.}, citeulike-article-id = {3743682}, citeulike-linkout-0 = {http://view.ncbi.nlm.nih.gov/pubmed/17163021}, citeulike-linkout-1 = {http://www.hubmed.org/display.cgi?uids=17163021}, issn = {0273-1223}, journal = {Water science and technology : a journal of the International Association on Water Pollution Research}, keywords = {aeration, biofilter, control, ndns}, number = {8}, pages = {129--136}, posted-at = {2008-12-03 18:08:43}, priority = {2}, title = {Aeration control for simultaneous nitrification-denitrification in a biological aerated filter using internal model approach.}, url = {http://view.ncbi.nlm.nih.gov/pubmed/17163021}, volume = {54}, year = {2006} }

TY - JOUR ID - citeulike:3743682 L3 - citeulike-article-id:3743682 N2 - Experience has shown that simultaneous nitrification/denitrification in a biological aerated filter is possible. However these systems react very sensitively to the aeration control strategies applied. Poorly adapted control strategies induce a strong decrease in treatment efficiency. A new control strategy for simultaneous N/DN is developed. The strategy proposed makes use of ammonia measurements and the inlet and outlet: a Feedback/Feedforward block. Passing by a calculation of the load to be eliminated, an estimation of the air flow velocity to be applied is carried out dynamically. A retroactive loop corrects this prediction in order to reach exactly the desired set point. This control approach has been implemented and tested at pilot plant scale for a period of 18 months. The pilot plant consists of two coupled BAF cells, reflecting closely industrial scale situations. Comparative studies reveal clearly the improved performance of the developed FF/FB control strategy compared to classical controllers. The benefits include 5% increase in nitrogen removal performance and a reduction of 15 to 20% in air requirement, offering a rapid return of investment costs. IS - 8 JF - Water science and technology : a journal of the International Association on Water Pollution Research SN - 0273-1223 EP - 136 TI - Aeration control for simultaneous nitrification-denitrification in a biological aerated filter using internal model approach. VL - 54 SP - 129 KW - aeration KW - biofilter KW - control KW - ndns AU - Lemoine, C AU - Payraudeau, M AU - Meinhold, J PY - 2006/// UR - http://view.ncbi.nlm.nih.gov/pubmed/17163021 ER -