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)

Programme(s)

• FP2-BCR 4 - Research and development programme (EEC) in the field of applied metrology and chemical analysis (Community Bureau of Reference - BCR), 1988-1992

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

KEMA N.V.

Address

310,Utrechtseweg
6812 Arnhem
Netherlands

Participants (18)

Bundesanstalt für Materialforschung und Materialprüfung

Germany

Address

Unter Den Eichen 87
12205 Berlin

Centre National de la Recherche Scientifique (CNRS)

France

Address

69390 Vernaison

Ente Nazionale per l'Energia Elettrica SpA (ENEL)

Italy

Address

Via Andrea Pisano 120
56100 Pisa

Faelleskemikerne/Elsam

Denmark

Address

185,Flensborgvej
6200 Aabenraa

Gordinne & Cie

Netherlands

Address

40,Oranjelaan
3181 HA Rozenburg

I.N.W. - Univeristeit Gent

Belgium

Address

86,Proeftuinstraat
9000 Gent

INSTITUT NATIONAL DE L'ENVIRONNEMENT INDUSTRIEL ET DES RISQUES

France

Address

Parc Technologique Alata
Verneuil En Halatte

Inst. de Carboquimica

Spain

Address

589,Apartado
50080 Zaragoza

Laborelec

Belgium

Address

125,Rue De Rhodes
1640 Linkebeek

Ministère des Affaires Economiques

Belgium

Address

17A,rue De La Senne
1000 Bruxelles

Ministère des Affaires Economiques

Belgium

Address

17A,rue De La Senne
1000 Bruxelles

Netherlands Energy Foundation

Netherlands

Address

3,Westerduinweg
1755 ZG Petten

RW-TÜV - Anlagentechnik GmbH

Germany

Address

Langemarckstraße 20
45141 Essen

Ruhrkohle AG

Germany

Address

Wilhelmstraße 98
44649 Herne

Stazione Sperimentale per i Combustibili SpA

Italy

Address

Viale A De Gasperi 3
20097 San Donato Milanese

UNIVERSITY OF PLYMOUTH

Universidad de Oviedo

Spain

Address

8,C/ Julían Clavería
33006 Oviedo

VTT Technical Research Centre of Finland

Finland

Address

7,Biologinkuja
02150 Espoo