نتایج جستجو برای: nutrient removal efficiency

تعداد نتایج: 580997  

Journal: :تحقیقات نظام سلامت 0
سید عباس میرزایی کارشناس، گروه مهندسی بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی جندی شاپور اهواز، اهواز، ایران نعمت اله جعفرزاده حقیقی فرد دانشیار، مرکز تحقیقات فناوریهای محیط زیست، دانشگاه علوم پزشکی جندی شاپور اهواز، اهواز، ایران.

background: constructed wetlands (cw s ) are mimic filtration process in natural wetlands that effectively remove variety pollutants from wastewater. the main objective was the feasibility evaluation for using of subsurface flow constructed wetland in nitrogen and phosphorus removal from synthetic based on domestic wastewater in lab scale. methods: in this study, a synthetic wetland subsurface ...

Journal: :iranian journal of biotechnology 2009
majid kermani bijan bina hossein movahedian mohammad mehdi amin mahnaz nikaeen

in this research, an experimental study to evaluate nutrient removal from synthetic wastewater by a lab-scale moving bed biofilm process was investigated. also, kinetic analysis of the process with regard to phosphorus and nitrogen removal was studied with different mathematical models. for nutrient removal, the moving bed biofilm process was applied in series with anaerobic, anoxic and aerobic...

Bijan Bina Hossein Movahedian Mahnaz Nikaeen Majid Kermani, Mohammad Mehdi Amin

In this research, an experimental study to evaluate nutrient removal from synthetic wastewater by a lab-scale moving bed biofilm process was investigated. Also, kinetic analysis of the process with regard to phosphorus and nitrogen removal was studied with different mathematical models. For nutrient removal, the moving bed biofilm process was applied in series with anaerobic, anoxic and aerobic...

Journal: :environmental health engineering and management 0
mahdi farzadkia department of environmental health engineering, school of public health, iran university of medical sciences, tehran, iran mohammad hassan ehrampoush department of environmental health engineering, school of public health, shahid sadoughi university of medical sciences, yazd, iran ehsan abouee mehrizi environment research center, department of environmental health engineering, school of public health, iran university of medical sciences, and department of environmental health engineering, faculty of public health, north khorasan university of medical sciences, bojnurd, iran shahram sadeghi department of environmental health engineering, school of public health, student research committee, kurdistan university of medical sciences, sanandaj, iran parvaneh talebi department of environmental health engineering, school of public health, islamic azad university, maybod branch, maybod, iran akbar salehi department of environmental health engineering, school of public health, islamic azad university, maybod branch, maybod, iran

background: investigating the performance of naturally operated treatment plants may be due to the fact that they cannot be operated as desired, or that they should be modified to achieve good performance e.g. for nutrients removal. the advantage of kinetic coefficient determination is that the model can be adjusted to fit data and then used for analyzing alternatives to improve the process. th...

Journal: :Journal of microbiology and biotechnology 2013
Seung-Hoon Lee Chi-Yong Ahn Beom-Ho Jo Sang-Ah Lee Ji-Yeon Park Kwang-Guk An Hee-Mock Oh

Microalgal cultivation using wastewater is now regarded as essential for biodiesel production, as two goals can be achieved simultaneously; that is, nutrient removal efficiency and biomass production. Therefore, this study examined the effects of carbon sources, the N:P ratio, and the hydraulic retention time (HRT) to identify the optimal conditions for nutrient removal efficiency and biomass p...

Journal: :international journal of environmental research 2013
n. pattananuwat m. aoki m. hatamoto a. nakamura s. yamazaki

we evaluated the efficacy of a full-scale combined biophysicochemical system for treatingmolasses-based bioethanol wastewater in terms of organic substances, nutrient, and dark brown color removal. the main organic removal unit, i.e., the upflow anaerobic sludge blanket (uasb) reactor, achieved 80.7% removal and 4.3 nm3 methane production per cubic meter of wastewater with a hydraulic retention...

Journal: :Environmental science and pollution research international 2015
Hong-bo Chen Dong-bo Wang Xiao-ming Li Qi Yang Guang-ming Zeng

Previous research has demonstrated that post-anoxic denitrification and biological nutrient removal could be achieved in the oxic/anoxic/extended-idle wastewater treatment regime. This study further investigated the effect of different carbon sources on post-anoxic denitrification and biological nutrient removal. Acetate, propionate (volatile fatty acids (VFAs)), glucose (carbohydrate), methano...

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