A full-cyclic automatic control strategy for sequencing batch reactors (SBR) was proposed using only common sensors such as ORP, DO and pH. The main objective was to develop a generally applicable and robust control strategy. To accomplish this, various control schemes found in the literature or suggested by authors were examined at diverse ammonia loads and SCOD/NH4+-N ratios. Advantages and constraints of each scheme were discussed and compared. Ammonia load was estimated with DO lag time during the aerobic stage, and then the influent pump was manipulated to meet the desired load at the next anoxic stage. A partial denitrification scheme was chosen for the anoxic stage period control, to save anoxic time and external carbon. For external carbon dosage control, intermittent feeding at each anoxic stage was concluded to be a suitable scheme. The anoxic stage period could be successfully controlled by the combination of pH increase and DO increase. Every suggested control scheme was incorporated into a full-cyclic control strategy and tested at 0.02, 0.035, 0.08 kg NH4+-N/m3/sub-cycle. From the results, it is expected to perform unmanned automatic SBR operation with this strategy.
Skip Nav Destination
Article navigation
Research Article|
February 01 2006
Full-cyclic control strategy of SBR for nitrogen removal in strong wastewater using common sensors
K.M. Poo;
K.M. Poo
*Water Environment & Remediation Center, Korea Institute of Science and Technology, 39-1, Hawolkokdong, Seongbukku, Seoul 136-791, Korea
Search for other works by this author on:
J.H. Im;
J.H. Im
**Department of Environmental Engineering, Pusan National University, San 30, Jangjundong, Pusan 609-735, Korea
Search for other works by this author on:
B.H. Jun;
B.H. Jun
***Department of Environmental Engineering, Chungbuk National University, 12 Gaesindong, Chungju 361-763, Korea
Search for other works by this author on:
J.R. Kim;
J.R. Kim
**Department of Environmental Engineering, Pusan National University, San 30, Jangjundong, Pusan 609-735, Korea
Search for other works by this author on:
I.S. Hwang;
I.S. Hwang
**Department of Environmental Engineering, Pusan National University, San 30, Jangjundong, Pusan 609-735, Korea
Search for other works by this author on:
K.S. Choi;
K.S. Choi
****Department of Marine Environmental Engineering, Kyeongsang National University, 445 Inpyeongdong, Tongyong, Gyeongsangnamdo 650-160, Korea
Search for other works by this author on:
C.W. Kim
**Department of Environmental Engineering, Pusan National University, San 30, Jangjundong, Pusan 609-735, Korea
E-mail: cwkim@pusan.ac.kr
Search for other works by this author on:
Water Sci Technol (2006) 53 (4-5): 151–160.
Citation
K.M. Poo, J.H. Im, B.H. Jun, J.R. Kim, I.S. Hwang, K.S. Choi, C.W. Kim; Full-cyclic control strategy of SBR for nitrogen removal in strong wastewater using common sensors. Water Sci Technol 1 February 2006; 53 (4-5): 151–160. doi: https://doi.org/10.2166/wst.2006.119
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.