Seasonal evaluation of disinfection by-products throughout two full-scale drinking water treatment plants

Abstract The objective of this research was to study the occurrence and seasonal variations of disinfection by-products (DBPs), including traditional carbonaceous and emerging nitrogenous DBPs, in a full-scale drinking water treatment plant (DWTP) for nearly 2 years. The removal efficiencies of each DBP through the treatment processes were also investigated. This DWTP takes raw water from the Yangtze River in East China. The quality of the raw water used in this DWTP varied with different seasons. The results suggested that DBP concentrations of the finished water were higher in spring (82.33 ± 15.12 μg/L) and summer (117.29 ± 9.94 μg/L) with higher dissolved organic carbon (DOC) levels, but lower in autumn (41.10 ± 5.82 μg/L) and winter (78.47 ± 2.74 μg/L) with lower DOC levels. Due to the increase of bromide concentration in spring and winter, more toxic brominated DBPs increased obviously and took up a greater proportion. In this DWTP, DBP concentrations increased dramatically after pre-chlorination, especially in summer. It is noteworthy that the removal of DBPs during the subsequent treatment was more obvious in spring than in the other three seasons because the pH value is more beneficial to coagulation in spring.

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Occurrence and fate of ozonation by-products at a full-scale drinking water treatment plant

The Science of The Total Environment ◽

10.1016/j.scitotenv.2014.02.069 ◽

2014 ◽

Vol 481 ◽

pp. 392-400 ◽

Cited By ~ 34

Author(s):

A. Papageorgiou ◽

D. Voutsa ◽

N. Papadakis

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Treatment Plant ◽

Drinking Water Treatment ◽

Water Treatment Plant ◽

Full Scale ◽

Drinking Water Treatment Plant ◽

By Products

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Removal of viruses and disinfection by-products at two drinking water treatment plants in southern China

Desalination and Water Treatment ◽

10.1080/19443994.2012.698817 ◽

2012 ◽

Vol 48 (1-3) ◽

pp. 221-231 ◽

Cited By ~ 5

Author(s):

Qiang Zhang ◽

Yan Liu ◽

Yuanyuan Wei ◽

Zhexue Quan ◽

Yun Zhang ◽

...

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Southern China ◽

Drinking Water Treatment ◽

Water Treatment Plants ◽

By Products

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Variation of Disinfection By-Products Formation Potential Species at Several Stages of Drinking Water Treatment Plants

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.777.337 ◽

2013 ◽

Vol 777 ◽

pp. 337-340

Author(s):

Qiang Zhang ◽

Bin Liu

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Drinking Water Treatment ◽

Biological Activated Carbon ◽

Formation Potential ◽

Treatment Processes ◽

Water Treatment Plants ◽

Microbial Products ◽

Water Plants ◽

By Products

The variation of disinfection by-products (DBPs) at several stages of drinking water treatment plants was investigated in two drinking water plants. The results clearly indicate that the low molecular weight total organic carbon (TOC) which has been identified as primary precursor for chlorinated DBPs was difficult to remove by coagulation. Plant A which used conventional coagulation/sedimentation could not decrease the species of trihalomethanes (THMs) and haloacetic acids (HAAs) formation potential. Biological activated carbon (BAC) was applied in Plant B which removed the maximum amount of TOC, while more kinds of microbial products were produced in BAC unit which could be the potential precursors of DBPs. Therefore, the species of DBPs formation potential still increased in the treatment processes of Plant B. Because different components of organic precursors produced different DBPs species, the processes of Plant B could decrease TOC efficiently but the species of THMs and HAAs formation potential.

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Nanofiltration selection for NOM removal: pilot and full-scale operation

Water Practice & Technology ◽

10.2166/wpt.2011.026 ◽

2011 ◽

Vol 6 (2) ◽

Cited By ~ 5

Author(s):

Laurence Durand-Bourlier ◽

Amandine Tinghir ◽

Philippe Masereel ◽

Sylvie Baig

Keyword(s):

Drinking Water ◽

Organic Matter ◽

Water Treatment ◽

Surface Water ◽

Organic Carbon ◽

Drinking Water Treatment ◽

Resource Scarcity ◽

Full Scale ◽

Organic Matter Removal ◽

Water Treatment Plants

Belgium is increasingly encountering drinking water problems because of resource scarcity and because of the quality of surface water from rivers and canal, which are often highly degraded. High organic matter concentrations are found and treated water has non-satisfying organic contents. This has a direct impact on THM formation and bacteria regrowth in the supply network. With more and more stringent regulations, organic matters concentration level in drinking water must be reduced. Nanofiltration (NF) is a suitable method for organic matter removal with reduction efficiency sometimes higher than 90 % (Orecki et al. 2004). It can be more effective than conventional technologies like activated carbon adsorption (Coté et al. 1996). This is a reason for upgrading old treatment plants by using NF treatment as a polishing step. Two drinking water treatment plants located in Eupen and La Gileppe in Belgium needed to be upgraded. These both plants treat surface water from dams and are equipped with a conventional clarification. A pilot study was carried out to compare different treatment files to remove Total Organic Carbon (TOC) and Biologically Degradable Organic Carbon (BDOC). NF process has been finally chosen. The aim of the paper is to report and discuss data supporting the choice of NF from pilot scale study and next full-scale performances of both upgraded drinking water treatment plants. The whole demonstrates the interest of NF as a suitable technology organic matter removal.

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Formation and removal of disinfection by-products in a full scale drinking water treatment plant

The Science of The Total Environment ◽

10.1016/j.scitotenv.2019.135280 ◽

2020 ◽

Vol 704 ◽

pp. 135280 ◽

Cited By ~ 3

Author(s):

Henry MacKeown ◽

Junias Adusei Gyamfi ◽

Klaas Vital Kaat Marnix Schoutteten ◽

David Dumoulin ◽

Liesbeth Verdickt ◽

...

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Treatment Plant ◽

Drinking Water Treatment ◽

Water Treatment Plant ◽

Full Scale ◽

Drinking Water Treatment Plant ◽

By Products

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Manganese removal processes at 10 groundwater fed full-scale drinking water treatment plants

Water Quality Research Journal ◽

10.2166/wqrj.2019.006 ◽

2019 ◽

Vol 54 (4) ◽

pp. 326-337 ◽

Cited By ~ 2

Author(s):

I. L. Breda ◽

L. Ramsay ◽

D. A. Søborg ◽

R. Dimitrova ◽

P. Roslev

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Drinking Water Treatment ◽

Filter Material ◽

Chemical Processes ◽

Full Scale ◽

Limited Effect ◽

Water Treatment Plants ◽

Physico Chemical ◽

Removal Processes

Abstract Manganese (Mn) removal in drinking water filters is facilitated by biological and physico-chemical processes. However, there is limited information about the dominant processes for Mn removal in full-scale matured filters with different filter materials over filter depth. Water and filter material samples were collected from 10 full-scale drinking water treatment plants (DWTPs) to characterise the Mn removal processes, to evaluate the potential use of enhancers and to gain further insight on operational conditions of matured filters for the efficient Mn removal. The first-order Mn removal constant at the DWTPs varied from 10−2 to 10−1 min−1. The amount of Mn coating on the filter material grains showed a strong correlation with the amount of iron, calcium and total coating, but no correlation with the concentration of ATP. Inhibition of biological activity showed that Mn removal in matured filters was dominated by physico-chemical processes (59–97%). Addition of phosphorus and trace metals showed limited effect on Mn removal capacity, indicating that the enhancement of Mn removal in matured filters is possible but challenging. There was limited effect of the filter material type (quartz, calcium carbonate and anthracite) on Mn removal in matured filters, which can be relevant information for the industry when assessing filter designs and determining returns of investments. This article has been made Open Access thanks to the kind support of CAWQ/ACQE (https://www.cawq.ca).

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Methodological approach for the optimization of drinking water treatment plants' operation: a case study

Water Science & Technology ◽

10.2166/wst.2014.503 ◽

2014 ◽

Vol 71 (4) ◽

pp. 597-604 ◽

Cited By ~ 18

Author(s):

Sabrina Sorlini ◽

Maria Cristina Collivignarelli ◽

Federico Castagnola ◽

Barbara Marianna Crotti ◽

Massimo Raboni

Keyword(s):

Drinking Water ◽

Water Treatment ◽

Distribution System ◽

Methodological Approach ◽

Experimental Studies ◽

Drinking Water Treatment ◽

Experimental Tests ◽

Full Scale ◽

Water Quality Control ◽

Water Treatment Plants

Critical barriers to safe and secure drinking water may include sources (e.g. groundwater contamination), treatments (e.g. treatment plants not properly operating) and/or contamination within the distribution system (infrastructure not properly maintained). The performance assessment of these systems, based on monitoring, process parameter control and experimental tests, is a viable tool for the process optimization and water quality control. The aim of this study was to define a procedure for evaluating the performance of full-scale drinking water treatment plants (DWTPs) and for defining optimal solutions for plant upgrading in order to optimize operation. The protocol is composed of four main phases (routine and intensive monitoring programmes – Phases 1 and 2; experimental studies – Phase 3; plant upgrade and optimization – Phase 4). The protocol suggested in this study was tested in a full-scale DWTP placed in the North of Italy (Mortara, Pavia). The results outline some critical aspects of the plant operation and permit the identification of feasible solutions for the DWTP upgrading in order to optimize water treatment operation.

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