Aguas residuales. parasitologia

Analysis of Wastewater for Use in Agriculture A Laboratory Manual of Parasitological and Bacteriological Techniques
Rachel M. Ayres & D. Duncan Mara Department of Civil Engineering University of Leeds Leeds, England

World Health Organization Geneva 1996 WHO Library Cataloguing in Publication Data Ayres, Rachel M. Analysis of wastewater for use in agriculture: a laboratory manual ofparasitological and bacteriological techniques/Rachel M. Ayres & D. Duncan Mara. 1. Microbiological techniques - laboratory manuals 2. Waste disposal, Fluid - analysis - laboratory manuals 3. Agriculture I. Mara, D. Duncan II. Title ISBN 92 4 154484 8 (NLM Classification: QW 25) The World Health Organization welcomes requests for permission to reproduce or translate its publications, in part or in full.Applications and enquiries should be addressed to the Office of Publications, World Health Organization, Geneva, Switzerland, which will be glad to provide the latest information on any changes made to the text, plans for new editions, and reprints and translations already available. © World Health Organization 1996 Publications of the World Health Organization enjoy copyright protection inaccordance with the provisions of Protocol 2 of the Universal Copyright Convention. All rights reserved. The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Secretariat of the World Health Organization concerning the legal status of any country, territory, city or area or of its authorities, orconcerning the delimitation of its frontiers or boundaries. The mention of specific companies or of certain manufacturers’ products does not imply that they are endorsed or recommended by the World Health Organization in preference to others of a similar nature that are not mentioned. Errors and omissions excepted, the names of proprietary products are distinguished by initial capital letters. The authorsalone are responsible for the views expressed in this publication. Design and layout by WHO GRAPHICS Printed in Finland 95/10419-WHO/GRA/Vammala-7000

The World Health Organization is a specialized agency of the United Nations with primary responsibility for international health matters and public health. Through this organization, which was created in 1948, the health professions of some 190countries exchange their knowledge and experience with the aim of making possible the attainment by all citizens of the world by the year 2000 of a level of health that will permit them to lead a socially and economically productive life. By means of direct technical cooperation with its Member States, and by stimulating such cooperation among them, WHO promotes the development of comprehensivehealth services, the prevention and control of diseases, the improvement of environmental conditions, the development of human resources for health, the coordination and development of biomedical and health services research, and the planning and implementation of health programmes. These broad fields of endeavour encompass a wide variety of activities, such as developing systems of primary healthcare that reach the whole population of Member countries; promoting the health of mothers and children; combating malnutrition; controlling malaria and other communicable diseases including tuberculosis and leprosy; coordinating the global strategy for the prevention and control of AIDS; having achieved the eradication of smallpox, promoting mass immunization against a number of other preventablediseases; improving mental health; providing safe water supplies; and training health personnel of all categories. Progress towards better health throughout the world also demands international cooperation in such matters as establishing international standards for biological substances, pesticides, and pharmaceuticals; formulating environmental health criteria; recommending international...