نتایج جستجو برای: biological nitrogen removal

تعداد نتایج: 705227  

2001
SARA GERKE LAWRENCE A. BAKER YING XU

Constructed wetlands could be components of low-tech systems to treat and reuse wastewater in arid region. A key function of the wetland would be to provide additional N removal. To improve design criteria, a sequential model of nitrogen transformations (organic N! ammonium; ammonium!nitrate; nitrate!nitrogen gas) was successfully calibrated and verified for a wetland in Kingman, Arizona. A seq...

2008
Wilfred M. Wollheim Charles J. Vörösmarty A. F. Bouwman Pamela Green John Harrison Ernst Linder Bruce J. Peterson Sybil P. Seitzinger James P. M. Syvitski

[1] We explored the role of aquatic systems in the global N cycle using a spatially distributed, within-basin, aquatic nitrogen (N) removal model, implemented within the Framework for Aquatic Modeling in the Earth System (FrAMES-N). The model predicts mean annual total N (TN) removal by small rivers (with drainage areas from 2.6–1000 km), large rivers, lakes, and reservoirs, using a 300 latitud...

Journal: :international journal of molecular and clinical microbiology 0
maedeh shahsanaei goneirani department of microbiology, falavarjan branch, islamic azad university, falavarjan, isfahan, iran.سازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) monir doudi dpatment of microbiology , falavarjan university, islamic azad university , falavarjan, isfahan, iranسازمان اصلی تایید شده: دانشگاه آزاد اسلامی علوم و تحقیقات (islamic azad university science and research branch) ali mohammad ahadi department of genetics, college of science, university of shahrekord, shahrekord, iran.سازمان اصلی تایید شده: دانشگاه شهرکرد (shahr kord university)

this laboratory study simultaneously was conducted to evaluate the resistance to heavy metals, silver, cadmium and a number of commonly used antibiotics. sampling was done in 2014 of the two silver workshops in isfahan, and the inlet of phase 2 of shahin shahr wastewater treatment plant, isfahan. to isolate resistant bacteria to metal silver and cadmium and review multiple resistance to other m...

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