Investigation and Evaluation of Flue Gas Pollutants Emission in Waste-to-Energy Plant with Flue Gas Recirculation

The emissions of pollutants by waste-to-energy power plants, which contain more toxic substances owing to the complicated composition municipal solid waste (MSW), such as NOx, SO2, HCl, HF, particulate matter, and heavy metals, has attracted increasing attention worldwide. To effectively control pollutants, a flue gas cleaning system is indispensable in operation MSW incineration plants. In this study, plant with recirculation (FGR) was evaluated. concentrations various were measured compared standards at home abroad. results indicated that NOx emission can be reduced FGR, concentration may meet national only adopting FGR. However, levels HCl PM exceeded limits legislative standards; therefore, optimization or retrofit deacidification bag filter proposed comply international near-zero-emissions goal.