Activated sludge process 1 Chemical oxygen demand 1 Chemical-oxygen demands 1 China 1 Effluent treatment 1 Effluent waters Effluents 1 Forecasting 1 Genetic algorithms 1 Input variables 1 Jiangsu 1 Model development 1 Optimization algorithms 1 Process monitoring 1 Real-time prediction 1 Recurrent neural networks 1 Sewage pumping plants 1 Total nitrogen 1 Toxicity 1 Waste water treatment plants 1 Wastewater treatment 1 Wastewater treatment plant effluent 1 Water quality 1 Water quality parameters 1 Water treatment plants 1 artificial intelligence 1 chemical oxygen demand 1 genetic algorithm 1 machine learning 1 model development 1