Denitrifying bacteria are anaerobes so tend to live in oxygen starved areas, such as waterlogged soil and stagnant water. This is the loss of nitrogen into the atmosphere: NO 3- N 2. Nitrogen fixation can also occur as a result of lightening - the electricity breaks N≡N bonds from nitrogen in the air and nitrate dissolves in the rain. Legumes (bean family) have a mutalistic relationship with nitrogen-fixing bacteria which provides them with nitrate whilst the bacteria get sugar and protection. Here, nitrogen from the atmosphere is taken and incorporated as NH 3. Two processes where NH4+ is first converted to nitrite (NO 2-) then nitrate (NO 3-). This is similar to the process where urea is made. This is the removal of an amine group and hydrogen to make ammonia. Find us on Facebook at Just Cycle 1: Just Cycle Ltd fGreen Theme powered by WordPress. There are some key processes that are primarily performed by bacteria. With support from our partners we salvage bikes destined for landfill.
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