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Explosion in Microbiological Anaerobic Chamber - (717)

The Microbiological Anaerobic Chamber of approximately 2 m3 capacity was containing an explosive mixture of hydrogen and air. A fire followed the explosion, but was rapidly extinguished by staff using fire extinguishers, prior to the arrival of fire service personnel. The pressure wave from the explosion blew windows out of the laboratory, with glass hitting a passer-by on a path outside, and glass shards landing up to 30 m away.

Syngas Explosion in University Laboratory Injures Nine (646)

Syngas explosion at a university laboratoryThe university lab affected was investigating generation of hydrogen and methane from biomass (wooden chips). The experimental furnace was a concrete cylindrical furnace of the diameter of 4 m and the height of 5 m. A fire jet occurred together with the explosion, and sparks fell on the professor in charge and students nearby. Nine persons were burned in face and hands and feet, and carried to the hospital by ambulances. They were only slightly injured.

Laboratory Explosion Due to Hydrogen Reaction in Plastic Chamber (380)

The laboratory works with soil bacteria that cannot survive in the presence of oxygen. As a result, research work is conducted inside a plastic chamber in which the chemical constituents in the air can be controlled. The explosion occurred during the set up of one of these chambers. The chamber is essentially a plastic bag with a volume of approximately two cubic meters. The setup procedure calls for using nitrogen to purge normal atmospheric air out of the bag three times, leaving a very small amount of residual oxygen present.

Explosion from Accidental Hydrogen Production (332)

A trained plant operator was blending water, sand, anhydrite, lime, cement, PFA and powdered aluminum in a mixing chamber to produce material for making building blocks. All powders are pre-weighed and dosed automatically via a computer controlled system. The mix is then discharged into a car, from which moulds are filled. During a break in production the operator took the opportunity to wash out the mixer in accordance with his work instructions. He did this by manually emptying out the water hopper into the pre-weigh batcher.

Explosion in a Microbiological Anaerobic Chamber (47)

An explosion occurred involving a Microbiological Anaerobic Chamber of approximately 2 m3 capacity, containing an explosive mixture of hydrogen and air. A fire followed the explosion, but was rapidly extinguished by staff using fire extinguishers, prior to the arrival of fire service personnel. The pressure wave from the explosion blew windows out of the laboratory, with glass hitting a passer-by on a path outside, and glass shards landing up to 30 m away.
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