01:447:390 Lecture Notes - Lecture 16: Anaerobic Respiration, Leachate, Bioremediation
Document Summary
The built environment (chapter 21) and microbial symbioses (chapter 22) On the 15. 8 spore-forming slide, organism should be bacillaes (?) The microbiology of man-made systems: specifically to stimulate desired microbial activities (ex. mining operations, subsurface bioremediation, wastewater treatment facilities, undesired microbial consequences ( ) Fe2+ oxidation: a chemotrophic process, mostly under acidic conditions. Chemotrophy: oxidation of inorganic (or organic) substrate as a source of energy. Mining precious metals with microorganisms (stimulating microbial activities: low grade cu ore (<1%, chemical oxidation by fe3, reaction of cu2+ with fe0 (done under acidic conditions; soluble copper gives the water a blue color. Water is put into ponds that contain scrap metals, or fe0. Fe0 is not a natural form of iron, it is created industrially. : fe2+ accumulates in ponds and it is exposed to microbial oxidation where it is converted back to. Heat-dependent succession of microorganisms: acidithiobacillus ferrooxidans. Copper is being oxidized and iron is reduced, exclusively chemical reaction.
