نتایج جستجو برای: biological nitrogen removal

تعداد نتایج: 705227  

2017
Francisco J. Cervantes

In this chapter the fundamental aspects involved in biological treatment processes applied for the removal of nitrogen from wastewaters are described. A comprehensive review of the literature is provided including kinetic, microbiological and biochemical aspects of nitrification, denitrification and anammox, as well as key operational parameters affecting the processes. This information is rele...

Journal: :Water science and technology : a journal of the International Association on Water Pollution Research 2012
E Jeong S R Chae S T Kang H S Shin

The effects of silver (Ag) nanoparticles (NPs) on activated sludge in a biological nitrogen removal (BNR) process were investigated under aerobic and anoxic conditions. We show that nitrification was more vulnerable to Ag NPs exposure than denitrification at the same Ag NPs concentration. In continuous operation of the BNR process, a higher inhibitory effect on nitrification was attributed to a...

Hadi Eslami , Mohammad Taghi Ghaneian , Seyed Abolghasem Mirhosseni Dehabadi , Seyed Vahid Ghelmani ,

Introduction: Sequential batch reactor (SBR) is one of the modified biological treatment systems which is able to remove BOD5, Nitrogen, and phosphorus from wastewater. The object of this study is to determine the removal efficiency of nitrogen, phosphorus, and heavy metals from municipal wastewater by the advanced SBR system. Materials and Methods: This descriptive-analytical and cross-sectio...

Journal: :Journal of Environmental Science International 2005

2017
Lei Wang Ying-Jun Li Ying Xiong Wen-Bing Tan Lie-Yu Zhang Xiang Li Xiao-Shu Wang Jian-feng Xu Tong-Tong Li Jin-Sheng Wang Ming-Xuan Cai Bei-Dou Xi Di-Hua Wang

The performance of the Sha-he wastewater reclamation plant was evaluated in this study. To remove residual nitrogen after Anaerobic-Anoxic-Oxic (A2O) treatment, three multistage Anoxic-Oxic (A/O) were added to investigate the nitrogen removal efficiency and its mechanism. In addition, the constituents and evolution of dissolved organic matter (DOM) during wastewater reclamation was also investi...

Journal: :Japanese Journal of Water Treatment Biology 2006

2005
Joseph Kyambadde Angella Lwanga

The ability of Nakivubo wetland (which has performed tertiary water treatment for Kampala city for the past 40 years) to respond to pollution and to protect the water quality of Inner Murchison Bay of Lake Victoria was investigated. The aim of this study was to assess the capacity of Nakivubo wetland to remove nitrogen from the wastewater after its recent encroachment and modification, in order...

Journal: :Research Journal of Applied Sciences, Engineering and Technology 2014

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