Techniques for Controlling Air Pollution from the Operation of Nuclear Facilities
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This publication is no longer valid Please see http://www-ns.iaea.org/standards/ SAFETY SERIES Ok_____4 * r No. 17 Techniques for Controlling Air Pollution from the Operation of Nuclear Facilities INTERNATIONAL ATOMIC ENERGY AGENCY VIENNA, 1966 This publication is no longer valid Please see http://www-ns.iaea.org/standards/ This publication is no longer valid Please see http://www-ns.iaea.org/standards/ SAFETY SERIES No. 17: TECHNIQUES FOR CONTROLLING AIR POLLUTION FROM THE OPERATION OF NUCLEAR FACILITIES . CORRIGENDA page 14, Table I, column 6 Above "Variable" for 0.73 -0.23 read 0.073 -0.23 page 62, Eq. (2) ' E°L exp ( c 2x+2^n ) lead exp ) page 64. Table IV The column headings should be as follows: C 2 (metres)11 at various h values in metres Condition n h = 25 h = 50 h = 75 h = 100 page 66, Eq. (11) F o r (27r)2 read 2 ir? page 96 The third equation on the page should read: This publication is no longer valid Please see http://www-ns.iaea.org/standards/ This publication is no longer valid Please see http://www-ns.iaea.org/standards/ TECHNIQUES FOR CONTROLLING AIR POLLUTION FROM THE OPERATION OF NUCLEAR FACILITIES This publication is no longer valid Please see http://www-ns.iaea.org/standards/ The following States are Members of the International Atomic Energy Agency: AFGHANISTAN FEDERAL REPUBLIC OF NICARAGUA ALBANIA GERMANY NIGERIA ALGERIA GABON NORWAY ARGENTINA GHANA PAKISTAN AUSTRALIA GREECE PARAGUAY AUSTRIA GUATEMALA PERU BELGIUM HAITI PHILIPPINES BOLIVIA HOLY SEE POLAND BRAZIL HONDURAS PORTUGAL BULGARIA HUNGARY ROMANIA BURMA ICELAND SAUDI ARABIA BYELORUSSIAN SOVIET INDIA SENEGAL SOCIALIST REPUBLIC INDONESIA SOUTH AFRICA CAMBODIA IRAN SPAIN CAMEROON IRAQ SUDAN CANADA ISRAEL SWEDEN CEYLON ITALY SWITZERLAND CHILE IVORY COAST SYRIA CHINA JAMAICA THAILAND COLOMBIA JAPAN TUNISIA CONGO, DEMOCRATIC KENYA TURKEY REPUBLIC OF REPUBLIC OF KOREA UKRAINIAN SOVIET SOCIALIST COSTA RICA KUWAIT REPUBLIC CUBA LEBANON UNION OF SOVIET SOCIALIST CYPRUS LIBERIA REPUBLICS CZECHOSLOVAK SOCIALIST LIBYA UNITED ARAB REPUBLIC REPUBLIC LUXEMBOURG UNITED KINGDOM OF GREAT DENMARK MADAGASCAR BRITAIN AND NORTHERN DOMINICAN REPUBLIC MALI IRELAND ECUADOR MEXICO UNITED STATES OF AMERICA EL SALVADOR MONACO URUGUAY ETHIOPIA MOROCCO VENEZUELA FINLAND NETHERLANDS VIET- NAM FRANCE NEW ZEALAND YUGOSLAVIA The Agency's Statute was approved on 23 October 1956 by the Conference on the Statute of the IAEA held at United Nations Headquarters, New York; it entered into force on 29 July 1957. The Headquarters of the Agency are situated in Vienna. Its principal objective is "to accelerate and enlarge the contribution of atomic energy to peace, health and prosperity throughout the world". © IAEA, 1966 Permission to reproduce or translate the information contained in this publication maybe obtained by writing to the International Atomic Energy Agency, Karntner Ring 11, Vienna I, Austria. Printed by the IAEA in Austria M arch 1966 This publication is no longer valid Please see http://www-ns.iaea.org/standards/ SAFETY SERIES No. 17 TECHNIQUES FOR CONTROLLING AIR POLLUTION FROM THE OPERATION OF NUCLEAR FACILITIES REPORT OF A PANEL ON TECHNIQUES FOR PREVENTING ATMOSPHERE POLLUTION FRO M THE OPERATION OF NUCLEAR FACILITIES HELD IN VIENNA, 4-8 NOVEMBER 1963 INTERNATIONAL ATOMIC ENERGY AGENCY VIENNA, 1966 This publication is no longer valid Please see http://www-ns.iaea.org/standards/ International Atomic Energy Agency. Techniques for controlling air pollution from the operation of nuclear facilities. Report of a panel ... held in Vienna, 4 -8 November 1963. Vienna, the Agency, 1966. 117 p. (IAEA, Safety series no. 17) 621.039.584-733 614.876 628.511 TfflS REPORT IS ALSO PUBLISHED IN FRENCH; MIMEOGRAPHED COPIES IN RUSSIAN AND SPANISH ARE A V A ILA BLE ON APPLICA TIO N TECHNIQUES FOR CONTROLLING AIR POLLUTION FROM THE OPERATION OF NUCLEAR FACILITIES, IAEA, VIENNA, 1966 STI/PUB/ 121 This publication is no longer valid Please see http://www-ns.iaea.org/standards/ FOREWORD The number of developing countries that are constructing new nuclear facilities is increasing. These facilities include research and power reac tors and radioisotope and research'laboratories, all of which pose air pol lution problems. The combination of a well designed ventilation system with thorough cleaning of exhaust air is the main method of preventing radioactive con tamination of the air in working areas as well as in the surrounding atmos phere, and therefore of protecting the personnel and population against inter ned radioactive contamination. That is why ventilation and air-cleaning sys tems are such an important part of the general design of any nuclear facility. Requirements for the removal of radioactive particulates and gases resulting from the operation of nuclear energy facilities generally differ from those for operations with non-radioactive substances because of the inherent toxicity of the materials; hence the very strict health and safety requirements. A second problem which often arises with radioactive ma terials is that the cleaning devices of filter units may become a source of direct radiation and this imposes handling restrictions or special controls. The IAEA convened a panel in Vienna, from 4-8 November 1963, to correlate present experience in the techniques for controlling nuclear faci lities in different countries, to agree on general principles, and to prepare this report. This publication is no longer valid Please see http://www-ns.iaea.org/standards/ This publication is no longer valid Please see http://www-ns.iaea.org/standards/ CONTENTS 1. INTRODUCTION ..................................................................................... 1 1.1. Purpose ....................................................................................... 1 1.2. Scope .......................................................................... ; ................ 2 2. GENERAL AIMS OF VENTILATION AND AIR-CLEANING SYSTEMS ....................................................................................................... 2 3. HEALTH AND SA FET Y REQUIREMENTS FOR DESIGN OF VENTILATION SYSTEMS IN NUCLEAR FACILITIES 3 3.1. Maximum perm issible concentrations ........................ 3 3.2. Ventilation design ................................................................. 4 3.3. Inlet ventilation ...................................................................... 7 3.4. Exhaust ventilation ................................................................ 7 3.5. Special ventilation re q u ire m e n ts.................................... 10 3.6. Radioactive waste incin erators ...................................... 19 4. AIR-CLEANING METHODS ............................................................ 20 4.1. Methods of removal of radioactive dust..................... 21 4.2. Methods of removing vapours and gases .................. 38 4.3. Conditioning of inlet air ..................................................... 50 5. FACTORS AFFECTING THE DILUTION OF CONTAMI NATED AIR DISCHARGED INTO THE ATMOSPHERE .. 53 5.1. B asic m eteorological considerations .......................... 53 5.2. Stack dispersion and meteorological control ......... 60 5. 3. Stack height and effective stack height..................... 60 5.4. Behaviour of stack effluents ........................................... 62 6. CONTROL AND MONITORING OF VENTILATION AND AIR-CLEANING SYSTEMS ............................................................. 67 6.1. Control of ventilation ............................................................ 68 6.2. Control of air cleaning ....................................................... 71 6.3. Monitoring of air contamination .................................... 73 This publication is no longer valid Please see http://www-ns.iaea.org/standards/ APPENDIX I - GENERAL PRINCIPLES OF FILTERED VENTILATION SYSTEMS ....................................... 80 1. THE SYSTEM IN CZECHOSLOVAKIA........................................ 80 1.1. Maximum permissible concentrations in air of single radioisotopes and radioisotope mixtures ... 80 1.2. Process building filtered ventilation system .......... 84 2. FIRE PREVENTION IN VENTILATION AND AIR- CLEANING SYSTEMS ....................................................................... 85 2.1. In trod u ction ................................................................................. 85 2.2. Typical hazards ....................................................................... 85 2.3. Fire prevention measures................................................... 86 2.4. Fire detection and fire extinguishing in ducting ... 91 2.5. Controls ....................................................................... '.............. 92 2.6. M aintenance................................................................................. 92 3. RESEARCH REACTOR VENTILATION...................................... 94 APPENDIX II - TECHNICAL INFORMATION ON AIR- CLEANING DEVICES ................. ............................ 95 1. MECHANISM OF AEROSOLS FILTRATION ............................ 95 2. METHODS OF TESTING HIGH EFFICIENCY FILTERS 96 3. VARIOUS GASEOUS RADIOISOTOPES OR SUBSTANCES CONTAINING T H E M -.......................................................................... 99 3.1. Isotopes formed in nuclear reactors ........................... 99 3.2. Isotopes formed in hot and radioisotope lab oratories ................................................................................. 101 4 . VARIOUS METHODS USED IN THE SOVIET UNION TO REMOVE RADIOACTIVE