نتایج جستجو برای: wastewater treatment plants

تعداد نتایج: 1585451  

2011
Zijun Zhang Andrew Kusiak

In this paper, a data-mining approach for modeling pumps in the wastewater preliminary treatment process is discussed. Datamining algorithms are utilized to develop pump performance models based on industrial data collected at a municipal wastewater processing plant. The performance of wastewater pumps is described by two parameters, pump energy consumption and water flow rate after the pumps. ...

2009
CASEY MUELLER

Integrated Fixed-Film/Activated Sludge (IFAS) technologies have been gaining wide popularity as an innovative and efficient treatment process for achieving nitrification in refining and petro-chemical wastewater treatment plants. IFAS technologies are sometimes referred to as Hybrid systems as the process combines the benefits of fixed film systems into the suspended growth activated sludge pro...

Journal: :international journal of occupational and environment medicine 0
ma albatanony departments of public health and community medicine, faculty of medicine, menoufiya university mk el-shafie medical biochemistry, faculty of medicine, menoufiya university

background: raw sewage contains various pathogenic organisms including bacteria, viruses, fungus, worms and protozoa. workers at wastewater treatment plants (wwtps) are exposed to these organisms as well as to h2s gas causing many health hazards. objectives: to assess some work-related health effects among wwtps workers with special emphasis on the most common infections as well as cardiopulmon...

2013
Kyle L. Asfahl Mary C. Savin

Broad-host-range plasmids are frequently associated with antibiotic resistance genes and can quickly spread antibiotic resistant phenotypes among diverse bacterial populations. Wastewater treatment plants have been identified as reservoirs for broad-host-range plasmids carrying resistance genes. The threat of broad-host-range plasmids released into the environment from wastewater treatment plan...

2008
Waleed M. Zahid

Cost estimation is an important consideration for the development and evaluation of wastewater treatment alternatives. This paper evaluates the most cost-effective treatment scheme among different plants employing two biological processes most commonly used for the treatment of municipal wastewater in Saudi Arabia, activated sludge and trickling filtration, by using a computer-based treatment c...

ژورنال: علوم آب و خاک 2012
سید علی قاسمی , , شهناز دانش, ,

In this research, the quality of the effluent from the City of Mashhad wastewater treatment plants was evaluated based on Ayers and Westcot irrigation water quality guideline, and the potential impacts of these effluents on soil and plants were assessed. For this purpose, the effluent from each of the three existing wastewater treatment plants was sampled on a regular basis, for a period of one...

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