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Biogas
An Indonesian community installs a cylindrical plastic biogas reactor in order to turn their organic waste into energy, 2007
An Indonesian community installs a cylindrical plastic biogas reactor in order to turn their organic waste into energy, 2007
"Biogaståget Amanda" ("Amanda the Biogas Train") train near Linköping station, Sweden
"Biogaståget Amanda" ("Amanda the Biogas Train") train near Linköping station, Sweden
Biogas fueling station in Mikkeli, Finland
Biogas fueling station in Mikkeli, Finland
Inauguration of a Südzucker biogas plant in Drochia with interview of Octavian Armașu, 2012.
Inauguration of a Südzucker biogas plant in Drochia with interview of Octavian Armașu, 2012.
Deposit of sulfur on a rock, caused by volcanic gas
Deposit of sulfur on a rock, caused by volcanic gas
A drained pond, showing the layer of sludge on the bottom; its black colour is due to the presence of metal sulfides, the result of reactions with hyd
A drained pond, showing the layer of sludge on the bottom; its black colour is due to the presence of metal sulfides, the result of reactions with hydrogen sulfide produced by bacteria.
A hydrogen sulfide bloom (green) stretching for about 150 km (93 mi) along the coast of Namibia. As oxygen-poor water reaches the coast, bacteria in t
A hydrogen sulfide bloom (green) stretching for about 150 km (93 mi) along the coast of Namibia. As oxygen-poor water reaches the coast, bacteria in the organic-matter rich sediment produce hydrogen sulfide, which is toxic to fish.