Assessment of the Comprehensive Effect of the Whole Life Cycle of the Upgrading and Reconstruction of Wastewater Treatment Plants—Taking an Urban Wastewater Treatment Plant as an Example
Assessment of the Comprehensive Effect of the Whole Life Cycle of the Upgrading and Reconstruction of Wastewater Treatment Plants—Taking an Urban Wastewater Treatment Plant as an Example
Wastewater treatment plants will inevitably produce various waste in the process of construction,opera-tion,remodelling and dismantlement,which can harm environmental health.This paper assesses the comprehensive impact of the actual upgrading and recontruction of wastewater treatment plants with the whole life cycle approach of sewage treatment,and results show that if only the effluent discharge standard is improved,wastewater treatment will have negtive benefits to the overall environment.Adopting reasonable discharge standards,photovoltaic power generation and sludge resource utilization can help compensate for negative impacts on the overall environment,and reduce the comprehensive impact indicators from 2.04×104 t/FU to 2.01×104,2.00×104 and 9.22×103 t/FU re-spectively,with a reduction of 1.33%,1.79%and 54.75%.
关键词
污水处理/全生命周期评价/提标改造/环境影响
Key words
Wastewater Treatment/Life Cycle Assessment/Emission Standard Upgrading/Environmental impacts
万方数据