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葡萄糖对水-沉积物微界面NH4^+和O2流速影响的微电极原位监测

赵轩 丁爱中 豆俊峰 程莉蓉

北京师范大学学报:自然科学版2012,Vol.48Issue(4):432-435,4.
北京师范大学学报:自然科学版2012,Vol.48Issue(4):432-435,4.

葡萄糖对水-沉积物微界面NH4^+和O2流速影响的微电极原位监测

IN SITU MONITORING OF NH4+ AND O2 FLUX IN WATER-SEDIMENT MICRO-INTERFACE RESPONSE TO GLUCOSE LOADING

赵轩 1丁爱中 1豆俊峰 1程莉蓉1

作者信息

  • 1. 北京师范大学水科学研究院,地下水污染控制与修复教育部工程研究中心,北京100875
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摘要

Abstract

Biogeochemical processes m warereun, transportation and transformation of pollutant and overlying water. Thus in situ monitoring of nitrogen fate in water-sediment micro-interface would be o{ great significance to river environmental protection and ecological re-habilitation. Microelectrode was used to monitor in situ and in real time O2 and NH+ fluxes across watersediment interface. It was found that organic loading (glucose) in water-sediment system with high DO (dissolved oxygen) in water tended to improve activity of aerobic microorganism and oxygen consuming rate. Sediment kept releasing NH4+ into overlying water with unstable rates, organic loading also caused NH4+ flux reversal in a short term.

关键词

河流/水-沉积物微界面/微电极/氨氮/溶解氧

Key words

river water-sediment micro-interface microelectrode ammonia nitrogen DO

分类

环境科学

引用本文复制引用

赵轩,丁爱中,豆俊峰,程莉蓉..葡萄糖对水-沉积物微界面NH4^+和O2流速影响的微电极原位监测[J].北京师范大学学报:自然科学版,2012,48(4):432-435,4.

基金项目

国家自然科学基金资助项目 ()

北京师范大学学报:自然科学版

OA北大核心CSCDCSTPCD

0476-0301

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