文档介绍：Determination of Ammonia Nitrogen in Wastewater
Using Electronic Nose
Xiangsheng Fang, Xin Guo, Hanchang Shi*, Qiang Cai
Department of Environmental Science and Technology
Tsinghua University
Beijing, . China
******@tsinghua.
Abstract—A low cost, fast and convenient method based on meets statutory discharge requirements. However they always
electronic nose for determination of ammonia nitrogen in face the lack of low cost and suitable measurement systems for
wastewater is developed in this study. The pH of the sample is on-line monitoring of wastewater quality [9]. Bourgeois and
adjusted to higher than 11 by adding saturated sodium hydroxide Stuetz [9-12] have made significant effort using electronic
solution, through which most of the ammonium ions transform
nose for continuous monitoring of wastewater and the results
into ammonia and volatilize to the gas phase following Henry’s
law. A sensor array consist of four metal oxide semiconductor gas demonstrated that electronic nose can be used for real-time
sensors responses to the headspace gas of the sample. Response process monitoring. Their work mainly focused on monitoring
data is analyzed using BP work. The result shows a global parameters such as BOD, COD and TOC, while single
robust relationship between the responses patterns of the substance was seldom concerned