摘要
为探究改性沸石负载脱氮菌对水体氨氮(NH_(4)^(+)-N)去除效果的影响,以天然沸石为研究对象,将沸石经H_(2)SO_(4)和FeSO_(4)改性处理后,结合菌株Q1,研究两者结合对水体NH_(4)^(+)-N的去除性能。结果表明:经H_(2)SO_(4)和FeSO_(4)改性处理后的沸石对菌株Q1固定化率分别达86.1%和68.1%,明显高于天然沸石。吸附时间24 h,改性沸石对菌株Q1的负载效果最好。H_(2)SO_(4)和FeSO_(4)改性处理后的沸石负载菌株Q1对模拟生活废水中的NH_(4)^(+)-N去除率分别达88.4%和89.1%,均高于游离菌和天然沸石。
This study investigates the impact of modified zeolite loaded with denitrifying bacteria on the removal efficiency of ammonium nitrogen(NH_(4)^(+)-N)from water.The research focuses on zeolite as the primary subject,examining its performance after modification with H_(2)SO_(4)and FeSO_(4)in conjunction with the denitrifying strain Q1.The findings indicate that the fixation rates of H_(2)SO_(4)and FeSO_(4)modified zeolite with strain Q1 were 86.1%and 68.1%,respectively,both of which were significantly greater than those observed with zeolite.The optimal adsorption duration was determined to be 24 hours,during which the modified zeolite demonstrated the most effective loading of strain Q1.Furthermore,the removal efficiencies of NH_(4)^(+)-N in simulated domestic wastewater using H_(2)SO_(4)and FeSO_(4)modified zeolite loaded with strain Q1 were recorded at 88.4%and 89.1%,surpassing the removal rates achieved by free bacteria and zeolite.
作者
周金波
裘浩洋
李丹丹
郑波杰
朱聪聪
应虹
朱诗君
金树权
ZHOU Jin-bo;QIU Hao-yang;LI Dan-dan(Ningbo Academy of Agricultural Science,Ningbo,Zhejiang 315040;Ningbo Key Laboratory of Testing and Control for Characteristic Agro-Product Quality and Safety,Ningbo,Zhejiang 315040;Ningbo EM Environment Technology Co.,Ltd.,Ningbo,Zhejiang 315000)
出处
《安徽农业科学》
2026年第1期73-76,82,共5页
Journal of Anhui Agricultural Sciences
基金
宁波市农业科学研究院院长基金项目(2024NKYP004)。
关键词
改性沸石
脱氮菌
脱氮性能
固定化
废水
去除性能
Modified zeolite
Denitrifying bacteria
Denitrification efficacy
Immobilized
Wastewater
Removal efficacy
