Low Bod Determination Methods: The State-of-the-Art

Górski, Łukasz; Trzebuniak, Kamil F.; Malinowska, Elżbieta

doi:10.2478/v10176-012-0053-7

Cited by 4 publications

(3 citation statements)

References 42 publications

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“…The determination of BOD is usually carried out using laboratory service. Some studies use a method based on biosensors and correlation calculations to obtain representative information on this indicator [9], [10]. Another way is to use a modified observer by introducing additional coupling (for both adaptive and non-adaptive law) which allows for stable operation of the object [11].…”

Section: Introductionmentioning

confidence: 99%

The look-up algorithm of monitoring an object described by non-linear ordinary differential equations

Hawro,

Kwater,

Bartman

et al. 2023

Bulletin of the Polish Academy of Sciences Technical Sciences

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The article proposes an adaptive algorithm that generates all object signals, including those for which measurements are not performed due to the difficulties associated with on-line measurements. The algorithm is modeled on the idea of the Kalman filter using its equation, however, the selection of gains is optimized in a different way, i.e. the constant values depend on the adopted ranges of adaptation errors. Moreover, the knowledge of the statistics of all noise signals is not imposed and there is no linearity constraint. This approach allowed to reduce the complexity of calculations. This algorithm can be used in real-time systems to generate signals of objects described by non-linear differential equations and it is universal, which allows it to be used for various objects. In the conducted research, on the example of a biochemically contaminated river, only easily measurable signals were used to generated the object signals, and in addition, in the case of absence some measurements, the functioning of the algorithm did not destabilize.

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Section: Introductionmentioning

confidence: 99%

The look-up algorithm of monitoring an object described by non-linear ordinary differential equations

Hawro,

Kwater,

Bartman

et al. 2023

Bulletin of the Polish Academy of Sciences Technical Sciences

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“…The stability of the BOD biosensor was greatly affected by the immobilized method. Especially, the biodegradability of the microorganism that was immobilized on the BOD biosensor plays a critical role in the application scope of the water body [ 7 , 8 ]. Most of them choose a single strain, as they exhibit good performances for the standard solution.…”

Section: Introductionmentioning

confidence: 99%

“…However, the universality is often poor for the practical water samples. The selective biodegradability of the immobilized microorganisms limits their practical use severely [ 8 , 9 , 10 , 11 ]. Only the sensors based on suitable microorganisms, which adapt to the environmental water body, can obtain valuable results in practical applications [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

A Universal Biofilm Reactor Sensor for the Determination of Biochemical Oxygen Demand of Different Water Areas

Wang

Yang

et al. 2022

Molecules

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In this study, we developed a simple strategy to prepare a biofilm reactor (BFR) sensor for the universal biochemical oxygen demand (BOD) determination. The microorganisms in fresh water were domesticated by artificial seawater with different salinity gradients successively to prepare the BFR sensor. The prepared BFR sensor exhibits an efficient ability to degrade a variety of organic substances. The linear range of BOD determination by the BFR sensor is 1.0–10.0 mg/L−1 with a correlation coefficient of 0.9951. The detection limit is 0.30 mg/L according to three times of signal-to-noise ratio. What is more, the BFR sensor displayed excellent performances for the BOD determination of different water samples, including both fresh water and seawater. The 16S-rRNA gene sequencing technology was used to analyze the microbial species before and after the domestication. The results show that it is a general approach for the rapid BOD determination in different water samples.

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Current status of water environment and their microbial biosensor techniques – Part II: Recent trends in microbial biosensor development

Nakamura

2018

Anal Bioanal Chem

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In Part I of the present review series, I presented the current state of the water environment by focusing on Japanese cases and discussed the need to further develop microbial biosensor technologies for the actual water environment. I comprehensively present trends after approximately 2010 in microbial biosensor development for the water environment. In the first section, after briefly summarizing historical studies, recent studies on microbial biosensor principles are introduced. In the second section, recent application studies for the water environment are also introduced. Finally, I conclude the present review series by describing the need to further develop microbial biosensor technologies. Graphical abstract Current water pollution indirectly occurs by anthropogenic eutrophication (Part I). Recent trends in microbial biosensor development for water environment are described in part II of the present review series.

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Low Bod Determination Methods: The State-of-the-Art

Cited by 4 publications

References 42 publications

The look-up algorithm of monitoring an object described by non-linear ordinary differential equations

The look-up algorithm of monitoring an object described by non-linear ordinary differential equations

A Universal Biofilm Reactor Sensor for the Determination of Biochemical Oxygen Demand of Different Water Areas

Current status of water environment and their microbial biosensor techniques – Part II: Recent trends in microbial biosensor development

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