西安某地下式污水处理厂的设计特点与应用OACSTPCD

In recent years,with the vigorous promotion of the construction of ecological civilization,the quality of urban ecological environment has become more and more important.In order to reduce the impact of WWTPs on the ecological environment,and promote the harmonious development of the construction of WWTPs and urban ecological parks,the construction form with the advantages of underground and semi-underground is adopted by the WWTPs in Xi'an.Multi-mode biochemical process and new denitrification is used as the core process,which can purify wastewater in underground space and intergrate the environment in above-ground space.The site characteristics and overall plan of underground type WWTPs in the ecological park are analyzed,and the engineering design characteristics of WWTPs are detailedly elaborated in terms of elevation,layout,process,fire protection,resource utilization,etc.,so as to provide reference for the combination model of underground type WWTPs construction and urban ecological park construction.After the project completed,the production operation is stable,and the effluent TN can meet the criteria specified in Xi 'an Urban Wastewater Treatment Plant Regeneration Hydration Upgrading and Deodorization Project Three-Year Action Plan(2018-2020),and the other effluent indices can meet the criteria A specified in the Shaanxi Province Yellow River Basin Wastewater Comprehensive Discharge Standard.