1、 AWWA Standard SM Reactivation of Granular Activated Carbon Effective date: Aug. 1, 2013. First edition approved by AWWA Board of Directors Jan. 14, 1999. This edition approved Jan. 20, 2013. Approved by American National Standards Institute May 28, 2013. ANSI/AWWA B605-13 (Revision of ANSI/AWWA B60
2、5-07) Copyright 2013 American Water Works Association. All Rights Reserved. ii AWWA Standard This document is an American Water Works Association (AWWA) standard. It is not a specification. AWWA standards describe minimum requirements and do not contain all of the engineering and administrative info
3、rmation normally contained in specifications. The AWWA standards usually contain options that must be evaluated by the user of the standard. Until each optional feature is specified by the user, the product or service is not fully defined. AWWA pub- lication of a standard does not constitute endorse
4、ment of any product or product type, nor does AWWA test, certify, or approve any product. The use of AWWA standards is entirely voluntary. This standard does not supersede or take precedence over or displace any applicable law, regulation, or codes of any governmental authority. AWWA standards are i
5、ntended to represent a consensus of the water supply industry that the product described will provide satisfactory service. When AWWA revises or withdraws this standard, an official notice of action will be placed on the first page of the Official Notice section of Journal - American Water Works Ass
6、ociation. The action becomes effective on the first day of the month following the month of Journal - American Water Works Association publication of the official notice. American National Standard An American National Standard implies a consensus of those substantially concerned with its scope and
7、provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of an American National Standard does not in any respect preclude anyone, whether that person has ap - proved the standard or not, from manufacturing, marketi
8、ng, purchasing, or using products, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review, and users are cautioned to obtain the latest editions. Producers of goods made in conformity with an American National Standard are encour - aged to
9、 state on their own responsibility in advertising and promotional materials or on tags or labels that the goods are produced in conformity with particular American National Standards. Caution n oti Ce : The American National Standards Institute (ANSI) approval date on the front cover of this standar
10、d indicates completion of the ANSI approval process. This American National Standard may be revised or withdrawn at any time. ANSI procedures require that action be taken to reaffirm, revise, or withdraw this standard no later than five years from the date of ANSI approval. Purchasers of American Na
11、tional Standards may receive current information on all standards by calling or writing the American National Standards Institute, 25 West 43rd Street, Fourth Floor, New York, NY 10036; (212) 642-4900, or emailing infoansi.org. ISBN-13, print: 978-1-58321-945-4 eISBN-13, electronic: 978-1-61300-235-
12、3 ISBN-10, print: 1-58321-945-5 eISBN-10, electronic: 1-61300-235-1 All rights reserved. No part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information or retrieval system, except in the form of b
13、rief excerpts or quotations for review purposes, without the written permission of the publisher. Copyright 2013 by American Water Works Association Printed in USA Copyright 2013 American Water Works Association. All Rights Reserved. iii The AWWA Reactivation of Granular Activated Carbon Subcommitte
14、e, which developed this standard, had the following personnel at the time: David W. Mazyck, Chair General Interest Members D.R.U. Knappe, North Carolina State University, Raleigh, N.C. (AWWA) B.H. Kornegay, Parsons Engineering Science, Powhatan, Va. (AWWA) D.J. Hartman, CH2M HILL, Blue Ash, Ohio (AW
15、WA) D.W. Mazyck, University of Florida/A.P. Black Hall, Gainesville, Fla. (AWWA) T.J. McCandless,* Standards Engineer Liaison, AWWA, Denver, Colo. (AWWA) M.A. Waer, Las Condes, Santiago, Chile (AWWA) Producer Members H. Arnest, Northwestern Carbon, Red Bluff, Calif. (AWWA) J.L. Fisher, Fish Associat
16、es, Glenshaw, Pa. (AWWA) J.R. Hedger, Elf Atochem North America, Pryor, Okla. (AWWA) D.O. Rester, Rester . At the other extreme are highly loaded GACs that have experienced high loadings of organics and inorganics. The relationship between loading and reactivation will vary by GAC type and water qua
17、lity, but in general, lightly loaded GACs will recover a higher percentage of adsorptive capacity than heavily loaded GACs. Some loss of GAC will occur during reactivation. Causes for this loss include trans- portation and handling and reactivation losses. Therefore, makeup GAC is added to the react
18、ivated GAC to bring the total GAC volume back to the original level. The makeup GAC should be virgin GAC or other reactivated GAC from the same potable water facility, exclusively. Use of virgin GAC as makeup avoids the potential liability of introducing leachable inorganic material from reactivated
19、 GAC from sources other than the purchasers own water. However, commingling of municipal-grade reacti- vated carbon may be done with the purchasers approval. II.B. Source of Supply and Services. GAC and carbon reactivation services should be obtained from sources regularly used to produce and supply these materials and services for water utilities. II.C. GAC Size Distribution. The reactivated GAC should possess a particle size distribution, effective size (ES), and uniformity coefficient (UC) comparable to the Copyright 2013 American Water Works Association. All Rights Reserved.
