Nitrification first-order process

Transport of O2 away from a root and its consumption in microbial processes—in addition to nitrification—and oxidation of mobile reductants such as Fe +. Microbial O2 consumption is described with Michaelis-Menten kinetics and Fe + oxidation with first-order kinetics with respect to both... 

As it has been already stated, the process of decomposition of OM in phytoplankton is similar to that in domestic waste waters. In both cases it proceeds at a decreasing rate, approximately exponentially, though it has been estimated by different parameters of OM (by BOD for waste waters and by the rate of accumulation of NH4 and PO " as the main products of mineralisation of phjftoplankton). In order to prove this, identical criteria of OM had to be used in each experiment. To find those, two studies were conducted. The first (Skopintsev and Ovtshinnikova, 1934), carried out undo aerobic conditions on natural water mixed with domestic waste flows, revealed that (in two experiments) ammonification proceeds at a decreasing rate before nitrification, and the curve of NH accumulation nearly repeats... 

---