This paper reviews scaling and deposition mechanisms as they relate to internal boiler treatment. Discussed are pertinent mechanisms of scale and deposition control processes. These include both precipitation and soluble programs for hardness control. Dispersion mechanisms for controlling precipitated feedwater contaminants such as iron oxides are presented. Two laboratory screening tests are presented and discussed. Coordinated and congruent phosphate programs for pH control and all-volatile treatment (AVT) are not within the scope of this paper.

Subject
Ions, Iron oxide, Metal surfaces, Condensates, Iron, Solubility, Calcium, Polymers, Feedwater, Scale formation, Boilers, Magnesium, Deposit corrosion
© 1988 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).
1988
Association for Materials Protection and Performance (AMPP)
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