Sensing fresh water contamination using fluorescence methods

@article{Okache2015SensingFW,
  title={Sensing fresh water contamination using fluorescence methods},
  author={Julius Okache and Barry G. D. Haggett and Robin Maytum and Andrew Mead and David M. Rawson and Tahmina Ajmal},
  journal={2015 IEEE SENSORS},
  year={2015},
  pages={1-4}
}
Water quality monitoring requires characterization of a range of organic and inorganic components present within the sample. We present here initial findings in the design of a novel system to detect contaminants by characterizing their characteristic fluorescence fingerprints in a 3-dimensional excitation emission matrix. This is a proof of principle for a system that would then use principal component analysis to diagnose the individual contaminants present in real world samples. A high… Expand

Figures from this paper

Monitoring Approaches for Faecal Indicator Bacteria in Water: Visioning a Remote Real-Time Sensor for E. coli and Enterococci
TLDR
This study determined that portable fluorescence sensing, combined with advanced modelling methods to compensate readings for environmental interferences and false positives, can lay the foundations for a hybrid FIB sensing approach, allowing remote field deployment of a fleet of networked FIB sensors that can collect high-frequency data in near real-time. Expand
UNDERSTANDING THE BEHAVIOUR OF CONTAMINATION SPREAD IN NAGARJUNA SAGAR RESERVOIR USING TEMPORAL LANDSAT DATA
Abstract. LANDSAT images are used to identify organic contaminants in water bodies, but, there is no enough evidence in present literature that LANDSAT is also good in identifying a mixture ofExpand
Analysis and Solutions for Water Impurity based on Data Mining
TLDR
The system will provide quick solutions with the help of previous training on it with theHelp of database and will form clusters based on type of impurity type and the solution will be provided by email services. Expand

References

SHOWING 1-10 OF 18 REFERENCES
A potential approach for monitoring drinking water quality from groundwater systems using organic matter fluorescence as an early warning for contamination events.
TLDR
The results of this study suggest that these types of drinking water systems, which are vulnerable to microbial contamination due to the lack of disinfectant treatment, can be easily monitored using online organic matter fluorescence as an early warning system to prompt further intensive sampling and appropriate corrective measures. Expand
Fluorescence spectroscopy as a tool for determining microbial quality in potable water applications
TLDR
The results indicate that the portable spectrophotometer could be applied to establish the quality of drinking water in areas of poor sanitation that are subject to faecal contamination, where infrastructure failure has occurred in the supply of clean drinking water. Expand
Portable LED fluorescence instrumentation for the rapid assessment of potable water quality.
TLDR
A novel LED-based instrument, detecting fluorescence peaks C and T (surrogates for organic and microbial matter, respectively), was constructed and performance assessed, demonstrating the potential of providing a low cost, portable alternative fluorimeter in real time. Expand
Organic matter fluorescence properties of some U.K. fresh and waste waters
Organic carbon is ubiquitous throughout the aquatic environment. It is an heterogeneous mixture of compounds, some of which are fluorescent, with allochthonous and autochthonous origins. The mostExpand
Can fluorescence spectrometry be used as a surrogate for the Biochemical Oxygen Demand (BOD) test in water quality assessment? An example from South West England.
TLDR
Fluorescence spectroscopy is recommended as a portable or laboratory tool for the determination of the presence of biodegradable organic matter with intrinsic oxidising potential in natural waters. Expand
Determination of changes in wastewater quality through a treatment works using fluorescence spectroscopy
TLDR
Initial results indicate that fluorescence spectroscopy, and changes in Peak T1 intensity in particular, could be used for continuous, real-time wastewater quality assessment and process control of wastewater treatment works. Expand
Measurement of protein-like fluorescence in river and waste water using a handheld spectrophotometer.
TLDR
Investigation of the measurement of river and waste water tryptophan-like fluorescence from a range of rivers in NE England and from effluents from within two waste water treatment plants found that fluorescence intensity is reproducible to +/- 20% for low fluorescence, 'clean' river water samples and +/- 5% for urban water and waste waters. Expand
Fluorescence analysis of dissolved organic matter in natural, waste and polluted waters—a review
Dissolved organic matter (DOM) in aquatic systems originates from a range of sources. Some is allochthonous, transported from the surrounding landscape to the water body, and is derived from andExpand
Characterisation of dissolved organic matter fluorescence properties by PARAFAC analysis and thermal quenching.
TLDR
This study has shown that thermal quenching can provide additional information on the characteristics and composition of DOM and highlighted the importance of correcting fluorescence data collected in situ. Expand
Real-time detection of possible harmful events using UV/vis spectrometry
The development of new variables, such as alarm parameters, that allow for an integrated assessment of changes in water quality using surrogate or aggregate variables, instead of searching for allExpand
...
1
2
...