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Improvement of the determination of fluoride and chloride in coal and fly ash

Objective



Coal and fly ash are currently analysed to assess air and ground water pollution, to evaluate mass balance in coal production and as indirect control of emission (based on the differences in concentrations found in coal and fly ash respectively). Some areas suffer from a severe pollution by emission of fluoride into the atmosphere and its subsequent transport into the ground water. In the past materials such as incineration ash were used as fillers for concrete and road constructions. Nowadays the quantity produced is such that deposition is necessary which in turn becomes a problem because of the possible toxicity.
Chloride is responsible for burner corrosion and has to be determined to assess this risk. In some cases raw materials may be rejected if the chloride and fluoride contents are too high which is a source of economic concern. The control of the quality of measurements is therefore of paramount importance which underlines the need for RMs certified for their contents in Cl and F.

Status:

A series of intercomparisons has demonstrated that the certification of F and Cl in coal and fly ash was feasible. The certification will be concluded by the end of 1992 (fly ash and coal, candidate CRMs 038 and 460)

Topic(s)

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Call for proposal

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Coordinator

KEMA N.V.
Address
310,utrechtseweg
6812 Arnhem
Netherlands

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Participants (18)

Bundesanstalt für Materialforschung und Materialprüfung
Germany
Address
Unter Den Eichen 87
12205 Berlin

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Centre National de la Recherche Scientifique (CNRS)
France
Address

69390 Vernaison

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Ente Nazionale per l'Energia Elettrica SpA (ENEL)
Italy
Address
Via Andrea Pisano 120
56100 Pisa

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Faelleskemikerne/Elsam
Denmark
Address
185,flensborgvej
6200 Aabenraa

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Gordinne & Cie
Netherlands
Address
40,oranjelaan
3181 HA Rozenburg

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I.N.W. - Univeristeit Gent
Belgium
Address
86,proeftuinstraat
9000 Gent

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INSTITUT NATIONAL DE L'ENVIRONNEMENT INDUSTRIEL ET DES RISQUES
France
Address
Parc Technologique Alata
Verneuil En Halatte

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Inst. de Carboquimica
Spain
Address
589,apartado
50080 Zaragoza

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Laborelec
Belgium
Address
125,rue De Rhodes
1640 Linkebeek

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Ministère des Affaires Economiques
Belgium
Address
17a,rue De La Senne
1000 Bruxelles

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Ministère des Affaires Economiques
Belgium
Address
17a,rue De La Senne
1000 Bruxelles

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Netherlands Energy Foundation
Netherlands
Address
3,westerduinweg
1755 ZG Petten

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RW-TÜV - Anlagentechnik GmbH
Germany
Address
Langemarckstraße 20
45141 Essen

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Ruhrkohle AG
Germany
Address
Wilhelmstraße 98
44649 Herne

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Stazione Sperimentale per i Combustibili SpA
Italy
Address
Viale A De Gasperi 3
20097 San Donato Milanese

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UNIVERSITY OF PLYMOUTH
Universidad de Oviedo
Spain
Address
8,c/ Julían Clavería
33006 Oviedo

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VTT Technical Research Centre of Finland
Finland
Address
7,biologinkuja
02150 Espoo

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