PMID- 18188992 OWN - NLM STAT- MEDLINE DCOM- 20080228 LR - 20191210 IS - 0895-3988 (Print) IS - 0895-3988 (Linking) VI - 20 IP - 5 DP - 2007 Oct TI - Prediction of anoxic sulfide biooxidation under various HRTs using artificial neural networks. PG - 398-403 AB - OBJECTIVE: During present investigation the data of a laboratory-scale anoxic sulfide oxidizing (ASO) reactor were used in a neural network system to predict its performance. METHODS: Five uncorrelated components of the influent wastewater were used as the artificial neural network model input to predict the output of the effluent using back-propagation and general regression algorithms. The best prediction performance is achieved when the data are preprocessed using principal components analysis (PCA) before they are fed to a back propagated neural network. RESULTS: Within the range of experimental conditions tested, it was concluded that the ANN model gave predictable results for nitrite removal from wastewater through ASO process. The model did not predict the formation of sulfate to an acceptable manner. CONCLUSION: Apart from experimentation, ANN model can help to simulate the results of such experiments in finding the best optimal choice for ASObased denitrification. Together with wastewater collection and the use of improved treatment systems and new technologies, better control of wastewater treatment plant (WTP) can lead to more effective maneuvers by its operators and, as a consequence, better effluent quality. FAU - Mahmood, Qaisar AU - Mahmood Q AD - Department of Environmental Engineering, College of Environment and Resource Science, Zhejiang University, Hangzhou 310029, Zhejiang, China. FAU - Zheng, Ping AU - Zheng P FAU - Wu, Dong-Lei AU - Wu DL FAU - Wang, Xu-Sheng AU - Wang XS FAU - Yousaf, Hayat AU - Yousaf H FAU - Ul-Islam, Ejaz AU - Ul-Islam E FAU - Hassan, Muhammad Jaffar AU - Hassan MJ FAU - Jilani, Ghulam AU - Jilani G FAU - Azim, Muhammad Rashid AU - Azim MR LA - eng PT - Journal Article PL - China TA - Biomed Environ Sci JT - Biomedical and environmental sciences : BES JID - 8909524 RN - 0 (Sulfates) RN - 0 (Sulfides) SB - IM MH - Bioreactors MH - *Neural Networks, Computer MH - Oxidation-Reduction MH - Sulfates/chemistry MH - Sulfides/*chemistry MH - Time Factors MH - Waste Disposal, Fluid/*methods EDAT- 2008/01/15 09:00 MHDA- 2008/02/29 09:00 CRDT- 2008/01/15 09:00 PHST- 2008/01/15 09:00 [pubmed] PHST- 2008/02/29 09:00 [medline] PHST- 2008/01/15 09:00 [entrez] PST - ppublish SO - Biomed Environ Sci. 2007 Oct;20(5):398-403.