摘要
山东某污水处理厂对其处理规模为4×10^(4) m^(3)/d的百乐克工艺进行升级改造,针对项目降低碳源投加量、提升脱氮能力和稳定性的需求,设计新建1组AO布置的纯膜移动床生物膜反应器(MBBR)生物池进行深度脱氮。项目建设完成后,吨水占地仅为0.0074 m^(2)/(m^(3)·d^(-1)),实现集约布置。实际运行效果显示,纯膜MBBR工艺出水TN稳定降至(10.11±1.67)mg/L,脱氮量占生化工艺TN去除总量的75.37%,同时碳氮比(C/N)仅为3.71,单位水量碳源成本降低37.29%,实际投资回收期仅为3.02年,较设计值缩短59.02%。该项目具有占地省、运行稳定和碳源利用率高的优点,可为污水处理厂深度脱氮和降碳升级提供新的解决方案。
The BIOLAK process of a wastewater treatment plant with a capacity of 4×10^(4) m^(3)/d in Shandong Province was upgraded and renovated to meet the project’s objectives of reducing carbon source consumption,enhancing denitrification efficiency,and improving operational stability.A new set of AO arranged pure moving bed biofilm reactor(MBBR)was designed and constructed for advanced nitrogen removal.After the completion of the construction,the land occupation per ton of wastewater was reduced to merely 0.0074 m²/(m³·d^(-1)),thereby achieving an intensive and efficient spatial layout.The actual operational results indicated that the total nitrogen(TN)in the effluent from the pure MBBR was stably reduced to(10.11±1.67)mg/L.The nitrogen removal capacity accounted for 75.37%of the TN removal achieved through the biochemical process.Additionally,the carbon to nitrogen ratio(C/N)was as low as 3.71,resulting in a 37.29%reduction in carbon source costs per unit volume of wastewater treated.Furthermore,the actual payback period for the investment was only 3.02 years,which was 59.02%shorter than the design value.This project offers the advantages of minimal land occupation,stable operation,and a high carbon source utilization rate.It can provide a novel solution for the advanced nitrogen removal and carbon reduction upgrades of wastewater treatment plants.
作者
吴迪
张磊
刘飞
石遵磊
杨忠启
王连德
周家中
WU Di;ZHANG Lei;LIU Fei;SHI Zun‑lei;YANG Zhong‑qi;WANG Lian‑de;ZHOU Jia‑zhong(Qingdao SPRING Water Treatment Co.Ltd.,Qingdao 266510,China;Qingdao Key Laboratory of Green and Low Carbon Biofilm and Water Environment Restoration,Qingdao SPRING Water Treatment Co.Ltd.,Qingdao 266510,China;Yantai Urban Drainage Service Center,Yantai 264001,China)
出处
《中国给水排水》
北大核心
2025年第14期57-62,共6页
China Water & Wastewater
基金
泰山产业领军人才工程专项(tscx202211036)
山东省技术创新项目(202360200113)
青岛西海岸新区科技攻关“揭榜制”专项(2024-4)。
关键词
MBBR工艺
百乐克工艺
深度脱氮
碳氮比
碳源
节能降耗
MBBR process
BIOLAK process
advanced nitrogen removal
carbon to nitrogen ratio(C/N)
carbon source
energy saving and consumption reduction
作者简介
吴迪(1985-),男,黑龙江伊春人,博士,正高级工程师,主要从事污水生化脱氮与智慧水务研发工作。E-mail:hitwudi@126.com;通信作者:周家中,E-mail:zhoujiazhong@qdspr.com。
