Forecasting model for urban sewage emission based on grey Verhulst model

摘要

Urban sewage emission system is complicated and scientific analysis and forecast is important basis established good urban ecological environment and ensured rational utilization of reclaimed water resources. According to urban sewage characteristics, the modeling methods of grey Verhulst model are introduced into urban sewage emission forecast, and lesser data can be used to found the forecasting model, so systemic mid long term prediction is established about urban sewage emission. In order to test the model prediction accuracy and result, taking Zhengzhou city for example to quantitatively analyze urban sewage emission, the result shows fitting and prediction accuracy are better. The model can offer decision reference for urban development and there are theoretical and practical significance.