Options to improve the coagulation process operation in a drinking water treatment plant. Case study

Aluminum salts are widely used across Romania in surface water treatment as coagulants. It is well-known that the efficiency of these coagulants has a complex dependency on the nature of the raw water, being affected by temperature, pH and suspended solids. The objective of this case study was to co...

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Main Authors: Adina Pacala, Maria Laura Samonid, Bogdan Murariu
Format: Article
Language:English
Published: Estfalia 2021-12-01
Series:Romanian Journal of Ecology & Environmental Chemistry
Subjects:
Online Access:http://www.rjeec.ro/Read/126?id=%0D%0AOptions%20to%20improve%20the%20coagulation%20process%20operation%20in%20a%20drinking%20water%20treatment%20plant.%20Case%20study
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author Adina Pacala
Maria Laura Samonid
Bogdan Murariu
author_facet Adina Pacala
Maria Laura Samonid
Bogdan Murariu
author_sort Adina Pacala
collection DOAJ
description Aluminum salts are widely used across Romania in surface water treatment as coagulants. It is well-known that the efficiency of these coagulants has a complex dependency on the nature of the raw water, being affected by temperature, pH and suspended solids. The objective of this case study was to compare the coagulation - flocculation efficiency process of raw water from the Bega River, at low temperature and turbidity, taking into account the use of alternative coagulating agents such as alum, poly aluminum chloride (PAC) and their mixing in 1:1 ratio. The raw water samples were treated using "Jar test" procedure, comparable with the current plant conditions at Timisoara Waterworks and taking into account possible operational improvements. For the mixture method applied in which was combined alum and PAC in 1:1 mixing ratio were achieved lower concentrations in aluminum residual, TOC, and turbidity.
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spelling doaj.art-fd0ae4eac3cb4509ad137f8ac2fd11462023-11-16T09:40:45ZengEstfaliaRomanian Journal of Ecology & Environmental Chemistry2668-54182668-85302021-12-0132114119https://doi.org/10.21698/rjeec.2021.214Options to improve the coagulation process operation in a drinking water treatment plant. Case studyAdina Pacala0Maria Laura Samonid1Bogdan Murariu2National Research and Development Institute for Industrial Ecology ECOINDWater Treatment Company Aquatim S.A TimisoaraWater Treatment Company Aquatim S.A TimisoaraAluminum salts are widely used across Romania in surface water treatment as coagulants. It is well-known that the efficiency of these coagulants has a complex dependency on the nature of the raw water, being affected by temperature, pH and suspended solids. The objective of this case study was to compare the coagulation - flocculation efficiency process of raw water from the Bega River, at low temperature and turbidity, taking into account the use of alternative coagulating agents such as alum, poly aluminum chloride (PAC) and their mixing in 1:1 ratio. The raw water samples were treated using "Jar test" procedure, comparable with the current plant conditions at Timisoara Waterworks and taking into account possible operational improvements. For the mixture method applied in which was combined alum and PAC in 1:1 mixing ratio were achieved lower concentrations in aluminum residual, TOC, and turbidity.http://www.rjeec.ro/Read/126?id=%0D%0AOptions%20to%20improve%20the%20coagulation%20process%20operation%20in%20a%20drinking%20water%20treatment%20plant.%20Case%20studycoagulationdrinking water treatmentalumpolyaluminium chloride solutionalternative coagulants
spellingShingle Adina Pacala
Maria Laura Samonid
Bogdan Murariu
Options to improve the coagulation process operation in a drinking water treatment plant. Case study
Romanian Journal of Ecology & Environmental Chemistry
coagulation
drinking water treatment
alum
polyaluminium chloride solution
alternative coagulants
title Options to improve the coagulation process operation in a drinking water treatment plant. Case study
title_full Options to improve the coagulation process operation in a drinking water treatment plant. Case study
title_fullStr Options to improve the coagulation process operation in a drinking water treatment plant. Case study
title_full_unstemmed Options to improve the coagulation process operation in a drinking water treatment plant. Case study
title_short Options to improve the coagulation process operation in a drinking water treatment plant. Case study
title_sort options to improve the coagulation process operation in a drinking water treatment plant case study
topic coagulation
drinking water treatment
alum
polyaluminium chloride solution
alternative coagulants
url http://www.rjeec.ro/Read/126?id=%0D%0AOptions%20to%20improve%20the%20coagulation%20process%20operation%20in%20a%20drinking%20water%20treatment%20plant.%20Case%20study
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