Title :
Notice of Retraction
Discussions on calculation formula of internal recycle ratio of pre-denitrification process
Author :
Huaji Ma ; Shuting Zhang
Author_Institution :
Sch. of Environ. Sci. & Eng., Tianjin Univ., Tianjin, China
Abstract :
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Internal recycle ratio (IR) is an important parameter influencing the nitrogen removal efficiency of pre-denitrification system. There are some detects such as poor accuracy and inconvenience for the IR calculation formulas in literature. Based on the nitrogen mass balance of an Anoxic-Oxic (A1/O) system, a novel formula for IR calculation has been deduced. Moreover, an application case has also been used to verify the formula. Results show that accuracy, simplicity and convenience are the advantages of this formula. With the newly-developed formula, it requires only the physical-chemical characteristics of influent and effluent of system to calculate IR.
Keywords :
environmental factors; nitrogen; A1-O system; IR calculation formulas; anoxic-oxic; internal recycle ratio; nitrogen mass balance; nitrogen removal efficiency; physical-chemical characteristics; pre-denitrification process; pre-denitrification system; Artificial intelligence; Construction industry; Effluents; Nitrogen; Recycling; biological nitrogen removal; formula; internal recycle ratio (IR); nitrogen mass balance; pre-denitrification process;
Conference_Titel :
Environmental Science and Information Application Technology (ESIAT), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7387-8
DOI :
10.1109/ESIAT.2010.5567453
