ISO INTERNATIONAL STANDARD 19698 First edition 2020-09 Sludge recovery, recycling, treatment and disposal Beneficial use of biosolids Land application Valorisation, recyclage, traitement et élimination des boues Utilisation benefique desboues d'epuration-Epandage Referencenumber IS0 19698:2020(E) ISO @ ISO 2020 @ISO2020 All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting below orIso's member body in the country of the requester. ISO copyright office CP 40i : Ch.de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email:[email protected] Website: www.iso.org Published in Switzerland ii ISO 2020-Allrights reserved Contents Page Foreword vi Introduction .vii 1 Scope. .1 2 Normativereferences .1 3 Terms and definitions .1 4 Benefits ofbiosolids land application .4 5 Nutrients in biosolids 5 5.1 General. 5 5.2 Nitrogen 5 5.2.1 General. 5 5.2.2 Nitrogen content and availabilityin biosolids 5 5.2.3 Determination of biosolids application rate according to nitrogen content 6 5.3 Phosphorus 6 5.4 Potassium 6 5.5 Calcium 6 5.6 Sulfur. 6 Nuisance and risks associated withbiosolids land application .7 6 6.1 General. 7 6.2 Odours. 7 6.3 Vector attraction 7 6.4 Pathogens 7 6.4.1 General. 7 6.4.2 Viruses. 8 6.4.3 Bacteria. 8 6.4.4 Protozoa 8 6.4.5 Helminths 8 6.5 Trace elements 9 6.6 Organic compounds 9 6.6.1 General. 9 6.6.2 Sourcecontrolofpotential contaminants 9 6.7 Environmental considerations 10 6.7.1 General. 10 6.7.2 Climate and season. 10 6.7.3 Topography 10 6.7.4 Protection of water sources 11 6.7.5 Identification of sensitiveuses and associated setbacks 11 6.8 Biosolids treatment 11 6.8.1 General. 11 6.8.2 Foreign matter .12 6.8.3 Odourreduction 12 6.8.4 Vectorattraction reduction 13 Pathogen reduction .13 6.8.5 6.9 Biosolids quality criteria- Groups of biosolids. .15 6.9.1 .15 General. 6.9.2 Group 1 biosolids. 15 6.9.3 Group 2 biosolids. .15 6.10 Potentialuses 15 6.11 Biosolids and soil monitoring 16 7 Biosolids application programme development and management .16 7.1 General .16 7.2 Community consultation .16 7.2.1 Involvingthecommunity 16 @ IS0 2020 - All rights reserved iii