[1]郑照勇,史绪川,刘淑杰,等.三维固定化生物膜反应器处理农村污水的中试研究[J].中国给水排水,2025,41(9):101-108.
　ZHENGZhao-yong,SHIXu-chuan,LIUShu-jie,et al.Pilot Study on Three-dimensional Immobilized Biofilm Reactor for Treatment of Rural Domestic Sewage[J].China Water & Wastewater,2025,41(9):101-108.
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三维固定化生物膜反应器处理农村污水的中试研究

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第41卷 期数: 2025年第9期 页码: 101-108 栏目: 出版日期: 2025-05-01
Title:
Pilot Study on Three-dimensional Immobilized Biofilm Reactor for Treatment of Rural Domestic Sewage
作者:
郑照勇1,2,3， 史绪川2， 刘淑杰1,2,3， 李贇2， 陆兰兰2， 彭嘉锐2
（1.桂林理工大学 广西环境污染控制理论与技术重点实验室，广西 桂林 541006；2.清研环境科技股份有限公司，广东 深圳 518071；3.桂林理工大学 广西岩溶地区水污染控制与用水安全保障协同创新中心，广西 桂林 541006）
Author(s):
ZHENG　Zhao-yong1，2，3， SHI　Xu-chuan2， LIU　Shu-jie1，2，3， LI Yun2， LU Lan-lan2， PENG　Jia-rui2
（1. Guangxi Key Laboratory of Theory and Technology for Environmental Pollution Control， Guilin University of Technology， Guilin 541006， China； 2. Qingyan Environmental Technology Co. Ltd.， Shenzhen 518071， China； 3. Collaborative Innovation Center for Water Pollution Control and Water Safety in Karst Area， Guilin University of Technology， Guilin 541006， China）
关键词:
三维固定化生物膜反应器;  农村生活污水;  模块化装备;  生物脱氮
Keywords:
three-dimensional immobilized biofilm reactor;  rural domestic sewage;  modular equipment;  biological nitrogen removal
摘要:
针对农村分散式生活污水的处理需求，设计开发了以聚酯纤维为填料的三维固定化生物膜反应器。中试结果表明，当填料填充率从57.2 m2/m3提高至78.8 m2/m3时，反应器内的生物量可提高1 010 mg/L，氨氮容积负荷可提高0.02 kg/（m3·d）；将缺氧区混合方式由搅拌器混合改为穿孔管曝气混合，可以保证缺氧区内稳定的缺氧环境和良好的传质效果，总氮去除率由52.19%提升到70.84%；优化水力停留时间（HRT）等运行参数，当HRT为12 h时，COD、NH4+-N、TN和SS平均去除率分别为82.47%、92.81%、69.39%、88.78%，总氮去除负荷为（0.15±0.04） kg/（m3·d）。分析反应器内的微生物群落结构发现，随着挂膜时间的增加，好氧区内主要硝化菌群Nitrospira和Ellin6067的相对丰度从6.92%提升至10.77%，缺氧区内Rhodocyclaceae和vadinHA17等反硝化细菌的相对丰度从25.92%提升至31.28%。三维固定化填料可有效富集与脱氮相关的菌属，从而提高生物脱氮效果。
Abstract:
A three-dimensional immobilized biofilm reactor utilizing polyester fiber as the packing medium was designed and developed for the effective treatment of decentralized domestic sewage in rural areas. When the filler filling ratio increased from 57.2 m2/m3 to 78.8 m2/m3, the biomass in the pilot-scale reactor could be enhanced by 1 010 mg/L, and the volumetric loading rate of ammonia nitrogen could be elevated by 0.02 kg/(m3·d). Changing the mixing mode in the anoxic zone from agitator mixing to perforated tube aeration mixing created a stable anoxic environment and enhanced the mass transfer efficiency. As a result, the TN removal efficiency increased significantly from 52.19% to 70.84%. The operational parameters, such as hydraulic retention time (HRT), were optimized to enhance process efficiency and performance. When the HRT was set to 12 hours, the average removal efficiencies of COD, NH4+-N, TN, and SS were 82.47%, 92.81%, 69.39%, and 88.78%, respectively. Additionally, the TN removal load was determined to be (0.15±0.04) kg/(m3·d). Analysis of the microbial community structure within the reactor revealed that the relative abundance of key nitrifying bacteria, including Nitrospira and Ellin6067 in the aerobic zone, increased from 6.92% to 10.77% with the increase of biofilm formation time. Additionally, the relative abundance of denitrifying bacteria, such as Rhodocyclaceae and vadinHA17, rose from 25.92% to 31.28%. The three?dimensional immobilized media can significantly enhance the enrichment of microorganisms associated with nitrogen removal, consequently improving the efficiency of biological nitrogen removal.

相似文献/References:

[1]王洋,黄奇云,谢杰,等.农村排水户酿酒废水收集、预处理和集中处理[J].中国给水排水,2022,38(22):123.
　WANGYang,HUANGQi-yun,XIE Jie,et al.Collection, Pretreatment and Centralized Treatment of Brewing Wastewater in Rural Drainage Households[J].China Water & Wastewater,2022,38(9):123.

更新日期/Last Update: 2025-05-01