A novel bioelectrochemical method for real-time nitrate monitoring

Su, Shi-Gang; Cheng, Hao-Yi; Zhu, Tingting; Wang, Hongcheng; Wang, Aijie

doi:10.1016/j.bioelechem.2018.09.002

Cited by 14 publications

(5 citation statements)

References 32 publications

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“…323 In a current report by Wang et al, a kinetic model was established to describe the correlation between the nitrate concentration and the current through the real-time detection of bioelectrochemical methods, which provides a new approach for the development of sustainable bioelectrochecmical system-based technology in groundwater and secondary effluent. 324 Unfortunately, there are several disadvantages and technological challenges in the practical applications of BERs, namely, the scale-up of BERs has not been evaluated; more advanced modelling of the reaction processes is necessary; and the long start-up process needs to be shortened. 321,323 Although researchers have been exploring the operation of a BED system for reducing nitrate from synthetic wastewater for the practical application of the BED system, it is necessary to expand the reactor scale, low-cost materials, better bacterial adhesion, optimal electrode specific capacity, and other variables.…”

Section: Electrocatalysis System Reactor Optimizationmentioning

confidence: 99%

Section: Lessons Learned and Perspectives On Electrocatalytic Nitrate...mentioning

confidence: 99%

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Electrocatalytic reduction of nitrate – a step towards a sustainable nitrogen cycle

et al. 2022

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Section: Electrocatalysis System Reactor Optimizationmentioning

confidence: 99%

Section: Lessons Learned and Perspectives On Electrocatalytic Nitrate...mentioning

confidence: 99%

Electrocatalytic reduction of nitrate – a step towards a sustainable nitrogen cycle

et al. 2022

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“…In the past decade, researchers have explored different methods to develop a real-time nitrate monitoring system. Su et al [ 79 ] reported a novel approach for the real-time monitoring of nitrate concentrations through the competitive relationship between the microbial denitrification and electrogenesis processes. This development allowed the extension of the application of bio-electrochemical technology to water technology.…”

Section: Real-time Nitrate Sensors and Recent Developmentsmentioning

confidence: 99%

Electrochemical and Optical Sensors for Real-Time Detection of Nitrate in Water

Lal

Jaywant

Arif

2023

Sensors

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The health and integrity of our water sources are vital for the existence of all forms of life. However, with the growth in population and anthropogenic activities, the quality of water is being impacted globally, particularly due to a widespread problem of nitrate contamination that poses numerous health risks. To address this issue, investigations into various detection methods for the development of in situ real-time monitoring devices have attracted the attention of many researchers. Among the most prominent detection methods are chromatography, colorimetry, electrochemistry, and spectroscopy. While all these methods have their pros and cons, electrochemical and optical methods have emerged as robust and efficient techniques that offer cost-effective, accurate, sensitive, and reliable measurements. This review provides an overview of techniques that are ideal for field-deployable nitrate sensing applications, with an emphasis on electrochemical and optical detection methods. It discusses the underlying principles, recent advances, and various measurement techniques. Additionally, the review explores the current developments in real-time nitrate sensors and discusses the challenges of real-time implementation.

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“…A BES-based biosensor for As was developed by Webster et al (2014) using an engineered Shewanella oneidensis strain, allowing an arsenite detection limit of 40 µM and a linear range up to 100 µM. A BES-based biosensor able to monitor NO3concentrations in real-time was proposed by Su et al (2019), but designed for monitoring secondary effluents of wastewater treatment plants, and thus requiring organic matter to properly work; such design could not be adapted to groundwater monitoring. Biosensors developed to monitor microbial activity in anoxic sediments (Wardman et al, 2014) could, with some modifications in the setup, be applied to groundwater monitoring.…”

Section: Biosensingmentioning

confidence: 99%

<em>In situ</em> Groundwater Treatment with Bioelectrochemical Systems (BES): Critical Review and Future Perspectives

Cecconet¹,

Sabba²,

Devecseri³

et al. 2019

Preprint

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Groundwater contamination is an ever-growing environmental issue, that has attracted much and undiminished attention for the past half century. Groundwater contamination originates from anthropogenic (e.g. hydrocarbons), natural compounds (e.g. nitrate and arsenic), or both; to tackle these contaminants different technologies have been tested during the years. Recently, bioelectrochemical systems (BESs) have emerged as a potential treatment for groundwater contamination, with in situ applications reported, that showed promising results. Nitrate and hydrocarbons (toluene, phenanthrene, benzene, BTEX and light PAHs) have been successfully removed, due to the interaction of microbial metabolism with poised electrodes, other than physical migration due to the electric field generated in BES. The selection of proper BESs relies on several factors and problems such as complexity of the groundwater, scale-up and energy requirements that need to be taken into account. Modelling efforts could help predict case scenarios and choose an ideal design and approach to solve these issues. In this review, we critically analyze in situ BES applications for groundwater remediation, focusing in particular on the different setups proposed, and we identify and discuss the existing research gaps in the field.

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A novel bioelectrochemical method for real-time nitrate monitoring

Cited by 14 publications

References 32 publications

Electrocatalytic reduction of nitrate – a step towards a sustainable nitrogen cycle

Electrocatalytic reduction of nitrate – a step towards a sustainable nitrogen cycle

Electrochemical and Optical Sensors for Real-Time Detection of Nitrate in Water

<em>In situ</em> Groundwater Treatment with Bioelectrochemical Systems (BES): Critical Review and Future Perspectives

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