Water quality monitoring using a smart sensing system

Charef, Azedine; Ghauch, Antoine; Baussand, Patrick; Martin-Bouyer, Michel

doi:10.1016/s0263-2241(00)00015-4

Cited by 76 publications

(40 citation statements)

References 8 publications

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“…생화학적 산소요구량(biochemical oxygen demand; BOD) 과 더불어 화학적 산소요구량은 환경수질 시료의 오염도 파악 에 매우 중요한 인자 중 하나다 (4) . COD는 수질 시료 중에 포함 된 유기화합물과 일부 무기화합물을 화학적으로 분해시킬 때 필요로 하는 산소 요구량으로서 호수, 하천 , 하수 및 산업 폐수 등의 오염 척도로 사용된다 (5) . 국가적으로도 호수나 하천 등의 수자원 관리 및 배출수나 방류수 등의 감시에 있어 엄격한 COD 농도 규제를 적용하고 있으며, 수질관리 감시체계에서는 오염원에서의 COD 모니터링을 하는 것은 필수적인 관리 및 감독 사항이다 (6) .…”

Section: 서 론unclassified

Effectiveness of the Sensor using Lead Dioxide Electrodes for the Electrochemical Oxygen Demand

Kim¹,

Chung²

2012

Journal of manufacturing engineering & technology

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The electrochemical oxygen demand (ECOD) is an additional sum parameter, which has not yet found the attention it deserves. It is defined as the oxygen equivalent of the charge consumed during an electrochemical oxidation of the solution.Only one company has yet developed an instrument to determine the ECOD. This instrument uses PbO 2 -electrodes for the oxidation and has been successfully implemented in an automatic on-line monitor. A general problem of the ECOD determination is the high overpotential of electrochemical oxidations of most organic compounds at conventional electrodes.Here we present a new approach for the ECOD determination, which is based on the use of a solid composite electrodes with highly efficient electro-catalysts for the oxidation of a broad spectrum of different organic compounds.Lead dioxide as an anode material has found commercial application in processes such as the manufacture of sodium per chlorate and chromium regeneration where adsorbed hydroxyl radicals from the electro-oxidation of water are believed to serve as the oxidizing agent. The ECOD sensors based on the Au/PbO 2 electrode were operated at an optimized applied potential, +1.6 V vs. Ag/AgCl/sat. KCl, in 0.01 M Na 2 SO 4 solution, and reduced the effect of interference and an expended lifetime (more than 6 months). The ECOD sensors were installed in on-line auto-analyzers, and used to analyze real samples.

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Section: 서 론unclassified

Effectiveness of the Sensor using Lead Dioxide Electrodes for the Electrochemical Oxygen Demand

Kim¹,

Chung²

2012

Journal of manufacturing engineering & technology

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“…Flow circulating sampling module and water quality sensor module are fixed in main pipeline or bypass pipeline for water inlet or outlet. Float style sampling is widely used in water quality or www.intechopen.com pollutes monitoring of river, lake and reservoir [31][32][33] . Hydrological sensors, meteorological sensors, and biochemical sensors are always integrated with water quality sensors.…”

Section: Water Quality Dynamic Monitoring System and Its Application mentioning

confidence: 99%

Water Quality Dynamic Monitoring Technology and Application Based on Ion Selective Electrodes

He¹,

Du²,

Hu³

2011

Recent Developments in Mobile Communications - A Multidisciplinary Approach

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“…Recently, ANN is widely used for empirical modeling of hidden dynamics in the environment [7][8][9][10] . It is said that ANN belongs to a class of data driven approach whereas conventional statistical methods are model driven 11) .…”

Section: Artificial Neural Networkmentioning

confidence: 99%

A Monitoring Method for Pollutant Load in Rivers by Using Artificial Neural Network

Liu

Ishikawa

Yoshimi

et al. 2008

PROCEEDINGS OF HYDRAULIC ENGINEERING

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This paper proposes a new method for continuous measurement of pollutant load in rivers without much cost. The basic idea is making the most of "empirical correlations which exist in the target" in order to relate what we can measure to what we want to know. In a field experiment presented here, signals from two types of optical sensors were used to estimate the loads of chemical oxygen demand (COD), total nitrogen (T-N) and total phosphorus (T-P), and artificial neural network (ANN) models were trained to fix "the empirical correlations" among them. The field data were collected in seven rivers located in the watershed of Lake Kasumigaura. The experimental results showed that the three items of water quality were stably estimated with good accuracy for rather long time without too much training data.

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Water quality monitoring using a smart sensing system

Cited by 76 publications

References 8 publications

Effectiveness of the Sensor using Lead Dioxide Electrodes for the Electrochemical Oxygen Demand

Effectiveness of the Sensor using Lead Dioxide Electrodes for the Electrochemical Oxygen Demand

Water Quality Dynamic Monitoring Technology and Application Based on Ion Selective Electrodes

A Monitoring Method for Pollutant Load in Rivers by Using Artificial Neural Network

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