Enhancement on the ammonia oxidation capacity of ammonia-oxidizing archaeon originated from wastewater:Utilizing low-density static magnetic field
作者机构：State Key Joint Laboratory of Environmental Simulation and Pollution ControlSchool of EnvironmentTsinghua UniversityBeijing100084China
出 版 物：《Frontiers of Environmental Science & Engineering》 (环境科学与工程前沿（英文）)
年 卷 期：2021年第15卷第5期
页 面：67-74页
核心收录：
学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学]
基 金：the National Natural Science Foundation of China(Grant No.51678335) the China Postdoctoral Science Foundation(No.2015M57105)
主 题：Ammonia-oxidizing archaeon Ammonia oxidation Magnetic field Magnetotaxis Heredity
摘 要：Ammonia-oxidizing archaeon(AOA)could play important roles for nitrogen removal in the bioreactors under conditions such as low pH and low dissolved ***,enhancing ammonia oxidation capability of AOA has great significance for water and wastewater treatment,especially under conditions like low dissolved oxygen *** a novel AOA strain SAT1,which was enriched from a wastewater treatment plant by our group,the effect of magnetic field on AOA’s ammonia oxidation capability,its magnetotaxis and heredity were investigated in this *** with control experiment,AOA’s maximum nitrite-N formation rate during the cultivation increased by 56.8%(0.65 mgN/(L·d))with 20 mT magnetic ***,it was testified that AOA possessed a certain ***,results manifested that the enhancement of AOA’s ammonia oxidation capability was not heritable,that is,lost once the magnetic field was ***,the possible mechanism of improving AOA’s ammonia oxidation capability by magnetic field was owing to the promotion of AOA single cells’growth and fission,rather than the enhancement of their ammonia oxidation *** results shed light on the application of AOA and methods to enhance AOA’s ammonia oxidation capability,especially in wastewater treatment processes under certain conditions.
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