|Document ID (ISN)||34458|
|ISSN - Serial title
|Convention or series no.
||Roth H., Asmuss M.
||Safety in sewers
||Sicherheit in Abwasserkanńlen [in German]|
||Jan. 1980, Vol.92, No.1, p.28-32. Illus.
||Report on an investigation of a serious accident due to a sudden emission of hydrogen sulfide (4 dead, 5 badly poisoned). Preventive measures (ventilation before entering sewers, air monitoring) prescribed by West German regulations were found to be inadequate in the case reported, where large quantities (350-400ppm) of H2S contained in organic sediment were suddenly released. Description of preventive measures, and mechanisms of H2S emission. A safety system, developed in the light of this recent experience, supplements the existing regulations. This system involves the use of a powerful fan (air flow 15,000m3/h) at all times during work in sewers, as well as continuous air monitoring. A specific rescue system has also been set up. Legal aspects of the accident in question.
||acute poisoning; work in sewers; hydrogen sulfide
||analysis of accident causes; Germany (Federal Republic of); legislation; mechanical ventilation; respirators; accident descriptions
||D - Periodical articles
||Toxic and dangerous substances
|Broad subject area(s)
Inorganic sulfur compounds