Prediction of disinfection by-product formation in drinking water via fluorescence spectroscopy

2016 ◽  
Vol 2 (2) ◽  
pp. 383-389 ◽  
Author(s):  
Benjamin F. Trueman ◽  
Sean A. MacIsaac ◽  
Amina K. Stoddart ◽  
Graham A. Gagnon
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Fluorescence Spectroscopy ◽  
Statistical Learning ◽  
Learning Algorithms ◽  
Product Formation ◽  
The Novel ◽  
Potential Applications ◽  
By Products

Fluorescence spectroscopy has potential applications for monitoring disinfection by-products (DBPs) during water treatment. This paper demonstrates the novel application of several statistical learning algorithms for fluorescence-based DBP prediction.

scholarly journals Formation of DBPs in the drinking eater of Athens, Greece: a Ten-Year study

2013 ◽  
Vol 7 (1) ◽  
pp. 106-118
Keyword(s):  
European Union ◽  
Drinking Water ◽  
Water Treatment ◽  
Chloral Hydrate ◽  
Haloacetic Acids ◽  
The European Union ◽  
Water Treatment Plants ◽  
Naturally Occurring ◽  
By Products ◽  
The Eu

The formation of Disinfection By-Products (DBPs) in drinking water results from the reaction of chlorine or other disinfectants added to the water with naturally occurring organic materials, and has raised concerns during the last decades because these compounds are harmful for human health. During the present work, the formation of different categories of DBPs was investigated in four water treatment plants (WTP) using chlorine as disinfectant, and in selected points of the distribution network of Athens, Greece, which is supplied from these four WTP, during a period of ten years. The concentrations of DBPs were generally low and the annual mean concentrations always well below the regulatory limit of the European Union (EU) for the total trihalomethanes (TTHMs). The haloacetic acids (HAAs) have not been regulated in the EU, but during this investigation they often occurred in significant levels, sometimes exceeding the levels of TTHMs, which highlights the importance of their monitoring in drinking water. Apart from THMs and HAAs, several other DBPs species were detected at much lower concentrations in the chlorinated waters: chloral hydrate, haloketones and, in a limited number of cases, haloacetonitriles.

Characterization of organic matter and disinfection by-products in membrane backwash water from drinking water treatment

2009 ◽  
Vol 168 (2-3) ◽  
pp. 753-759 ◽  
Author(s):  
Lingling Zhang ◽  
Ping Gu ◽  
Zijie Zhong ◽  
Dong Yang ◽  
Wenjie He ◽  
...  
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
By Products

scholarly journals On-line monitoring of organic matter concentrations and character in drinking water treatment systems using fluorescence spectroscopy

2016 ◽  
Vol 2 (4) ◽  
pp. 749-760 ◽  
Author(s):  
Y. Shutova ◽  
A. Baker ◽  
J. Bridgeman ◽  
R. K. Henderson
Keyword(s):  
Drinking Water ◽  
Organic Matter ◽  
Water Treatment ◽  
Fluorescence Spectroscopy ◽  
Drinking Water Treatment ◽  
Robust Method ◽  
On Line

There is a need for a rapid and robust method of organic matter (OM) monitoring during drinking water treatment.

Disinfection by-products in drinking water – a case study on Calgary, Alberta, Canada

2011 ◽  
Vol 46 (3) ◽  
pp. 200-210 ◽  
Author(s):  
Mei Chen ◽  
Klas Ohman ◽  
Jason Sinclair ◽  
Darcy Petkau ◽  
Raymond Yau ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Distribution System ◽  
Principal Component ◽  
Data Matrix ◽  
Key Factor ◽  
Chlorine Demand ◽  
Public Health Protection ◽  
By Products

Disinfection by-products (DBPs) have been monitored in Calgary's drinking water for approximately 15 years. The variability of the DBPs has typically exhibited similar patterns over the period of monitoring. Due to the nature of the surface waters supplying the water treatment plants, the level of DBPs was largely influenced by surface runoff events where the level of natural organic matter (NOM) increased, which was characterized by a relatively high total organic carbon (TOC) content. Principal component analysis (PCA) was utilized for this study to quickly identify the key underlying correlations present within the very large, complex multivariate data matrix. Apart from TOC, chlorine demand, chlorine residual and temperature were observed to correlate with the formation of DBPs in the finished drinking water. In addition to TOC, PCA also indicates that pH and temperature in the distribution system could have an influence on the variability of DBPs in Calgary's drinking water. It was apparent that upgrades to the water treatment systems in Calgary have resulted in an improved removal of DBP precursors such as NOM prior to chlorination, which is a key factor in reducing the DBP levels in the drinking water, thereby providing an enhanced level of public health protection.

New chlorinated amphetamine-type-stimulants disinfection-by-products formed during drinking water treatment

2012 ◽  
Vol 46 (10) ◽  
pp. 3304-3314 ◽  
Author(s):  
Maria Huerta-Fontela ◽  
Oriol Pineda ◽  
Francesc Ventura ◽  
Maria Teresa Galceran
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
By Products

Formation of disinfection by-products during ballast water treatment with ozone, chlorine, and peracetic acid: influence of water quality parameters

2015 ◽  
Vol 1 (4) ◽  
pp. 465-480 ◽  
Author(s):  
Amisha D. Shah ◽  
Zheng-Qian Liu ◽  
Elisabeth Salhi ◽  
Thomas Höfer ◽  
Barbara Werschkun ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Treatment ◽  
Peracetic Acid ◽  
Ballast Water ◽  
Product Formation ◽  
Quality Parameters ◽  
Water Quality Parameters ◽  
Ballast Water Treatment ◽  
Influence Of Water ◽  
By Products

Differences in water quality from freshwater to seawater alter disinfection by-product formation during disinfection of ballast waters.

Effects of ion exchange resin pre-treatment on GAC adsorption

2008 ◽  
Vol 8 (2) ◽  
pp. 181-187
Author(s):  
B. Sani ◽  
L. Rossi ◽  
C. Lubello ◽  
S. Zacchei
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Ion Exchange ◽  
Drinking Water Treatment ◽  
Life Time ◽  
Ion Exchange Resins ◽  
Dissolved Organics ◽  
Pre Treatment ◽  
Exchange Resins ◽  
By Products

In Italian drinking water treatment plants (DWTP), the problem of chlorination by-products control is very important as the Italian drinking water regulations (Dlgs. 31/2001, as enactment of the CEU directive 98/83) set very strict limits for these compounds. A possible strategy for controlling the concentrations of DBPs (disinfection by-products) is the application of treatment processes able to reduce the concentration of dissolved organic matter, the main precursor of DBPs, before the dosage of chlorine-based disinfectants. Recently, ion exchange resins for the removal of dissolved organics have shown several applications in drinking water treatment. In this experimental study, the treatment with ion exchange resins MIEX®DOC and the treatment with GAC (granular activated carbon) were evaluated for the removal of dissolved organics. Moreover, the effects of MIEX® pre-treatment on the subsequent GAC filtration phase were evaluated, with particular attention to the effects on the life-time of the GAC filter. The GAC filter operation was simulated by rapid small scale column tests (RSSCT), which allow the evaluation of the GAC breakthrough curve in a shorter time with respect to a full plant and pilot plant trials. On the basis of the experimental results, the ion exchange process was very efficient in dissolved organics removal (60–70% UV254 removal). Moreover, the results indicated that the application of ion exchange resins as pre-treatment in a conventional drinking water treatment train could increase the filter life-time in the subsequent GAC adsorption phase (about 200%) resulting in potentially important cost benefits for the overall treatment process.

Progress on Drinking Water Treatment with Chlorine Dioxide

2013 ◽  
Vol 848 ◽  
pp. 255-258 ◽  
Author(s):  
Yu Zhong Guo ◽  
Yan Zhen Yu ◽  
Ming Li ◽  
Guang Yong Yan
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Chlorine Dioxide ◽  
Drinking Water Treatment ◽  
Water Disinfection ◽  
Water Quality Standards ◽  
Water Pretreatment ◽  
Detection Technology ◽  
Filter Water ◽  
By Products

By the reason of strong responses activity and oxidation ability, Chlorine dioxide as oxidant and disinfectant has been applied to peroxidation and disinfection more and more widely.In this paper, it give an account of the preparation of chlorine dioxide, as oxidants to raw water pretreatment, used in filter water disinfection ,the detection technology of chlorine dioxide and disinfection by-products, the water quality standards formulated by domestic and overseas chlorine dioxide in using chlorine dioxide, and summarized progress on drinking water treatment with chlorine dioxide .

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