Proactive optical monitoring of catchment dissolved organic matter for drinking water source protection

2020 ◽  
Author(s):  
John Weatherill ◽  
Elena Fernandez-Pascual ◽  
Jean O'Dwyer ◽  
Elizabeth Gilchrist ◽  
Simon Harrison ◽  
...  
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Water Source ◽  
Disinfection Byproducts ◽  
Catchment Management ◽  
Drinking Water Source ◽  
Source Water ◽  
Optical Monitoring ◽  
Water Supplies

<p>Ireland has a far greater number of regulatory exceedances for trihalomethanes (THMs) in public water supplies than the next highest European Union member state. In Ireland, 82% of public water supplies originate from surface water catchments which require disinfection to inactivate pathogens and prevent the spread of waterborne diseases. Since the 1970s, it has been known that the use of chlorine for disinfection leads to the formation of potentially harmful disinfection byproducts (DBPs) of which some are suspected carcinogens. THMs are one prominent class of at least 700 potentially harmful disinfection byproducts (DBPs) produced after chlorination of dissolved organic matter (DOM) present in source water which is not removed prior to disinfection.</p><p>We introduce a new research project, funded by the Irish Environmental Protection Agency entitled PRODOM: PRoactive Optical monitoring of catchment Dissolved Organic Matter for drinking water source protection. The overall aim of the research is to develop an integrated catchment-level understanding of the spatiotemporal dynamics of DOM precursors and associated DBP formation risk. The project will explore the relationship between optically-active DOM precursors and laboratory formation potentials for key DBPs including emerging classes of potentially more harmful nitrogenous DBPs. Through high-resolution spatial sampling we will develop geospatial DBP formation risk maps and identify risk-driving point and diffuse precursor sources. We will evaluate the potential of state-of-the-art UV fluorescence sensor technology to act as an early warning tool for proactive management of source water at sub-catchment scale. Using high-frequency time series monitoring of fluorescent precursors, we will identify high-risk periods in the catchment hydrograph and evaluate critical precursor sources and pathways to inform a series of catchment management measures designed to reduce DBP formation risk. </p>

scholarly journals Effect of Radio-Frequency Treatment on the Changes of Dissolved Organic Matter in Rainwater

Water ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 111
Author(s):  
Ariadi Hazmi ◽  
Maulana Yusup Rosadi ◽  
Reni Desmiarti ◽  
Fusheng Li
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Radio Frequency ◽  
Copper Wire ◽  
Water Source ◽  
Lower Amount ◽  
Drinking Water Source ◽  
Fluorescence Excitation ◽  
Potential Source

Rainwater is a potential source of drinking water, but has various components of dissolved organic matter (DOM). DOM is a reservoir of potential hazards in drinking water. Therefore, a new method is required to purify rainwater as a drinking water source in terms of DOM aspects. A radio-frequency (RF) treatment system is introduced here to purify source water with a small possibility of contamination. RF is generated by applying a frequency of 1.5 MHz through a glass reactor with a diameter of 2 mm which is wrapped by a 2 mm copper wire. The results demonstrate that UV260 value and dissolved organic carbon (DOC) are reduced during RF treatment. DOC was reduced by a lower amount compared to UV260, suggesting the partial transformation of bio-refractory DOM. A fluorescence excitation-emission matrix showed that humic-like substances in rainwater were reduced faster than protein-like ones, indicating that humic-like substances are susceptible to reduction by RF treatment. The results offer information on the use of RF treatment in a rainwater purification process for the production of drinking water.

Differences in dissolved organic matter between reclaimed water source and drinking water source

2016 ◽  
Vol 551-552 ◽  
pp. 133-142 ◽  
Author(s):  
Hong-Ying Hu ◽  
Ye Du ◽  
Qian-Yuan Wu ◽  
Xin Zhao ◽  
Xin Tang ◽  
...  
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Dissolved Organic Matter ◽  
Reclaimed Water ◽  
Water Source ◽  
Drinking Water Source

Divergent responses of diverse microalgae commonly found in drinking water source water to UV-C treatment

2021 ◽  
Author(s):  
Jordan Roszell ◽  
Po-Shun Chan ◽  
Brian Petri ◽  
Ted Mao ◽  
Kathleen Nolan ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Source ◽  
Drinking Water Source ◽  
Source Water ◽  
Uv C

Triclosan removal by NF from a real drinking water source – Effect of natural organic matter

2016 ◽  
Vol 283 ◽  
pp. 330-337 ◽  
Author(s):  
Abdullah Ogutverici ◽  
Levent Yilmaz ◽  
Ulku Yetis ◽  
Filiz B. Dilek
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Natural Organic Matter ◽  
Water Source ◽  
Drinking Water Source ◽  
Source Effect

scholarly journals A Systems Analysis Approach to Identifying Critical Success Factors in Drinking Water Source Protection Programs

2019 ◽  
Author(s):  
Hew Cameron Merrett ◽  
Wei Tong Chen ◽  
Jao Jia Horng
Keyword(s):  
Water Quality ◽  
Drinking Water ◽  
Critical Success Factors ◽  
Success Factors ◽  
Water Source ◽  
Control Measures ◽  
Catchment Management ◽  
Drinking Water Source ◽  
Principle Components Analysis ◽  
Critical Success

The success of source protection in ensuring safe drinking water is centered around being able to understand the hazards present in the catchment then plan and implement control measures to manage water quality risk to levels which can be controlled through downstream barriers. The programs in place to manage source protection are complex sociotechnical systems involving policy, standards, regulators, technology, human factors and so on. This study uses System Theoretic Process Analysis (STPA) to analyze the operational hazards of a typical drinking water source protection (DWSP) program and identify control measures to ensure safe operations. To validate the results a questionnaire was developed and distributed to specialists in DWSP in Taiwan, Australia and Greece. Using Principle Components Analysis (PCA) of the questionnaire responses, the study identified four critical success factors (CSFs) for DWSP. The four factors identified are ‘Policy and Government Agency Support of Source Protection’, ‘Catchment Risk Monitoring and Information’, ‘Support of Operational Field Activities’ and ‘Response to Water Quality Threats’. The results of this study provide insight into the approach of grouping of source protection measures to identify a series of targeted CSF for operational source protection programs. Using CSF can aide catchment management agencies in ensuring that the risk level in the catchment is managed effectively and that threats to public health from drinking water are managed appropriately.

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