工艺：多模式改良型AA/O+后置反硝化深床滤池
商业模式：PPP 设计规模：200,000 t/d
Hefei Qingxi Underground WWTP PPP Project
Process： Enhanced Multi-model AA/O+ Posterior Denitrification Deep Bed Filter
Business Model：PPP
Designed Capacity：200,000 tons/day