Abstract
Groundbeds consisting of chromium, silicon rich cast iron anodes surrounded by petroleum coke breeze are widely used to maintain cathodic protection potentials on underground steel structures. Hundreds of these anode systems are installed in shallow and deep groundbeds along a pipeline system. Problems at one particular anode bed in 1994 raised concerns that toxic species might be generated by the electrochemical oxidation reactions that occur in these anode beds. This paper summarizes lab and field investigation of these concerns.
Subject
Water,
Materials,
Groundbeds,
Chromium,
Solubility,
Petroleum,
Groundwater,
Coke,
Ion concentrations,
Metals,
Soil,
Oxidation,
Anodes
© 2000 Association for Materials Protection and Performance (AMPP). All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise) without the prior written permission of AMPP. Positions and opinions advanced in this work are those of the author(s) and not necessarily those of AMPP. Responsibility for the content of the work lies solely with the author(s).
2000
Association for Materials Protection and Performance (AMPP)
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