市政技术2026，Vol.44Issue(8)：215-222,8.DOI:10.19922/j.1009-7767.2026.08.215
氨氮吸附型悬浮填料制备及性能表征
Preparation and Performance Characterization of Suspended Carriers with Ammonia-Nitrogen Adsorption Capacity
摘要
Abstract
To address the problems of slow biofilm formation and unsatisfactory overall nitrification capacity of con-ventional suspended carriers,two configurations of modified earriers were successfully prepared via filling modifica-tion by blending high-concentration ammonia-nitrogen-adsorbing masterbatch filled with molecular sieves.Scan-ning electron microscopy(SEM)characterization reveals that molecular sieves,the high-efficiency ammonia-nitrogen adsorbent,are embedded on the surface of modified carriers in either agglomerated or monolithic form,which in-creases surface roughness and provides abundant surface sites for ammonia-nitrogen adsorption and microbial at-tachment.Biological performance tests demonstrate that during days 10～25 of biofilm cultivation,the growth rate of effective biomass on modified carriers is over 1.30 times that of conventional carriers,and the growth rate of nitrifi-cation rate exceeds 1.27 times that of conventional carriers.On day 30 of biofilm formation,compared with conven-tional carriers,modified carriers achieve more than 29.31％higher effective biomass,over 27.04％higher nitrifica-tion rate,and above 61.71％higher relative abundance of nitrifying bacteria,with prominent enrichment effect on ammonia-oxidizing bacteria.The modified carriers developed in this study feature simple processing and remarkable nitrification enhancement,exhibiting favorable prospects for engineering application.关键词
高效氨氮吸附剂分子筛/改性填料/有效生物量/强化硝化Key words
high-efficiency ammonia-nitrogen adsorbent molecular sieve/modified carrier/effective biomass/en-hanced nitrification分类
资源环境引用本文复制引用
秦伟,曹效鑫,庞洪涛,文湘华,陈湛,丁凡,齐宇轩,张涛..氨氮吸附型悬浮填料制备及性能表征[J].市政技术,2026,44(8):215-222,8.基金项目
国家重点研发计划项目(2022YFC3203101) （2022YFC3203101）
