The topics include environmental impact follow up: a case study of several construction projects in various university campuses, the production of hydrogen fluoride by processing fluorine-containing wastes and by-products of modern industries, assessing barriers preventing bars and eateries in central South Africa from recycling practices, discarded nylon fishing nets as fiber reinforcement in cement mortar, and a numerical model for denitrification
of municipal landfill leachate and parametric analysis on denitrification
New York, NY, January 09, 2019 --(PR.com)-- The research papers, titled, "Efficient autotrophic denitrification
performance through integrating the bio-oxidation of Fe(II) and Mn(II)," "Comparison of denitrification
performance by bacterium Achromobacter sp.
In terrestrial ecosystems, [N.sub.2]O is mainly produced in soils via nitrification and denitrification
processes (Smith and Arah 1990; Wrage et al.
Because of a significant imbalance in the carbon-to-nitrogen (C/N) ratio in the leachate, the test used an additional carbon source to achieve denitrification
. The TN removal efficiency was more than 95%.
The number of culturable nitrifying and denitrification
bacteria, ammonifiers bacteria and azotobacteria in a sample was determined by counting colony forming units (CFU).
HMBR combines classical organic carbon depollution with simultaneous nitrification and denitrification
. Biological nitrification-denitrification is a development process for nitrogen removal from wastewater.
Conventional processes of ammonium removal involved nitrification by aerobic autotrophic organisms and denitrification
by anaerobic heterotrophic organisms.
[N.sub.2]O in constructed wetland is mainly produced by nitrification, denitrification
, and denitrifier denitrification
(Wrage et al., 2001): (i) Nitrifiers i.e.
Nitrous oxide ([N.sub.2]O) emissions from agricultural systems are thought to result principally from the microbial-mediated processes of nitrification (the oxidation of ammonium to nitrate) and denitrification
(the reduction of nitrate to [N.sub.2]O and dinitrogen) in soil, although other processes and combinations thereof exist (Butterbach-Bahl el al.
In the biological process, nitrogen removal is achieved through nitrification by autotrophs and denitrification
by heterotrophs; i.e., nitrification occurs under aerobic condition in which ammonium-N is oxidized firstly to nitrite, then to nitrate.