scholarly journals Characteristics of Bacterial Communities in Biological Filters of Full-Scale Drinking Water Treatment Plants

2019 ◽  
Vol 29 (1) ◽  
pp. 91-104 ◽  
Author(s):  
Yonkyu Choi ◽  
Yeongseop Cha ◽  
Bogsoon Kim
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Bacterial Communities ◽  
Drinking Water Treatment ◽  
Full Scale ◽  
Water Treatment Plants ◽  
Biological Filters

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

2011 ◽  
Vol 6 (2) ◽  
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.

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

2019 ◽  
Vol 54 (4) ◽  
pp. 326-337 ◽  
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).

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

2014 ◽  
Vol 71 (4) ◽  
pp. 597-604 ◽  
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.

Assessing Coagulant Dosage in Full-Scale Drinking Water Treatment Plants Using Nephelometry

2012 ◽  
Vol 29 (3) ◽  
pp. 212-217 ◽  
Author(s):  
Wen Po Cheng ◽  
Ping Hung Chen ◽  
Ruey Fang Yu ◽  
Jen Neng Chang
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Full Scale ◽  
Water Treatment Plants ◽  
Coagulant Dosage

Drinking Water Surveillance Program in the St. Clair-Detroit River Area 1985/86

1986 ◽  
Vol 21 (3) ◽  
pp. 447-459 ◽  
Author(s):  
K.J. Roberts ◽  
R.B. Hunsinger ◽  
A.H. Vajdic
Keyword(s):  
Drinking Water ◽  
Water Treatment ◽  
Drinking Water Treatment ◽  
Surveillance Program ◽  
Sampling Protocol ◽  
Detroit River ◽  
Water Treatment Plants

Abstract The Drinking Water Surveillance Program (DWSP), developed by the Ontario Ministry of the Environment, is an assessment project based on standardized analytical and sampling protocol. This program was recently instituted in response to a series of contaminant occurrences in the St. Clair-Detroit River area of Southwestern Ontario. This paper outlines the details and goals of the program and provides information concerning micro-contaminants in drinking water at seven drinking water treatment plants in Southwestern Ontario.

Sign in / Sign up

Export Citation Format

Share Document