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纯膜MBBR工艺应用于深度脱氮的工程设计与效果

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第14期 页码: 57-62 栏目: 出版日期: 2025-07-17
Title:
Engineering Design and Performance of Pure Moving Bed Biofilm Reactor Process for Advanced Nitrogen Removal
作者:
吴迪1,2， 张磊3， 刘飞1,2， 石遵磊1,2， 杨忠启1,2， 王连德1,2， 周家中1,2
（1.青岛思普润水处理股份有限公司，山东 青岛 266510；2.青岛思普润水处理股份有限公司 青岛市绿色低碳生物膜与水环境恢复重点实验室，山东 青岛 266510；3.烟台市城市排水服务中心，山东 烟台 264001）
Author(s):
WU　Di1，2， ZHANG　Lei3， LIU Fei1，2， SHI　Zun-lei1，2， YANG　Zhong-qi1，2， WANG　Lian-de1，2， ZHOU　Jia-zhong1，2
（1. Qingdao SPRING Water Treatment Co. Ltd.， Qingdao 266510， China； 2. Qingdao Key Laboratory of Green and Low Carbon Biofilm and Water Environment Restoration， Qingdao SPRING Water Treatment Co. Ltd.， Qingdao 266510， China； 3. Yantai Urban Drainage Service Center， Yantai 264001， China）
关键词:
MBBR工艺;  百乐克工艺;  深度脱氮;  碳氮比;  碳源;  节能降耗
Keywords:
MBBR process;  BIOLAK process;  advanced nitrogen removal;  carbon to nitrogen ratio (C/N);  carbon source;  energy saving and consumption reduction
摘要:
山东某污水处理厂对其处理规模为4×104 m3/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0.007 4 m2/（m3·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。
Abstract:
The BIOLAK process of a wastewater treatment plant with a capacity of 4×104 m3/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 0.007 4 m3/(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.

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更新日期/Last Update: 2025-07-17